Jaw Coupling Hubs

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Jaw couplings are flexible couplings that connect two shafts at their ends to transmit power. They consist of jaw coupling hubs and spiders for handling diverse temperature ranges, speed of equipment... Read More

StyleModelCoupling SizeBore SizeKeyway SizeLength through BoreOutside Dia.Hub LengthMaterialCoupling TypePrice (inc. GST)
A68514410211L0501/2"1/8" x 1/16"0.62"1.08"1.1"Sintered IronL SGD 8.96
RFQ
A68514446121L0503/8"3/32" x 3/64"0.62"1.08"1.1"Sintered IronL SGD 8.96
RFQ
A68514444136L0503/8"1/8" x 1/16"0.62"1.08"1.1"Sintered IronL SGD 8.96
A68514444713L0507/16"3/32" x 3/64"0.62"1.08"1.1"Sintered IronL SGD 8.96
RFQ
A68514410213L0509/16"1/8" x 1/16"0.62"1.08"1.1"Sintered IronL SGD 8.96
RFQ
A68514441985L0703/8"3/32" x 3/64"0.75"1.36"1.23"Sintered IronL SGD 14.12
RFQ
A68514410426L0703/4"3/16" x 3/32"0.75"1.36"1.23"Sintered IronL SGD 17.92
A68514410424L0705/8"3/16" x 3/32"0.75"1.36"1.23"Sintered IronL SGD 18.28
A68514476284L0709/16"1/4" x 1/8"0.75"1.36"1.23"Sintered IronL SGD 99.18
RFQ
A68514447952L0701/2"3/16" x 3/32"0.75"1.36"1.23"Sintered IronL SGD 14.03
RFQ
A68514444007L0707/16"3/32" x 3/64"0.75"1.36"1.23"Sintered IronL SGD 14.12
A68514448829L0703/8"1/8" x 1/16"0.75"1.36"1.23"Sintered IronL SGD 14.77
RFQ
A68514451719L0703/4"1/8" x 1/16"0.75"1.36"1.23"Sintered IronL SGD 24.06
A68514410421L0701/2"1/8" x 1/16"0.75"1.36"1.23"Sintered IronL SGD 14.12
RFQ
A68514410423L0709/16"1/8" x 1/16"0.75"1.36"1.23"Sintered IronL SGD 14.03
RFQ
A68514410425L07011/16"3/16" x 3/32"0.75"1.36"1.23"Sintered IronL SGD 14.03
RFQ
A68514451104L0705/8"5/32" x 5/64"0.75"1.36"1.23"Sintered IronL SGD 14.77
RFQ
A68514410685L0751/2"1/8" x 1/16"0.82"1.75"1.32"Sintered IronL SGD 20.28
A68514428089L0757/16"3/32" x 3/64"0.82"1.75"1.32"Sintered IronL SGD 16.47
A68514440699L0751/2"1/8"0.82"1.75"1.32"Sintered IronL SGD 16.47
RFQ
A68514410687L0759/16"1/8" x 1/16"0.82"1.75"1.32"Sintered IronL SGD 16.47
RFQ
A68514444070L0755/8"1/8" x 1/16"0.82"1.75"1.32"Sintered IronL SGD 16.47
RFQ
A68514476377L07517/32"1/8" x 1/16"0.82"1.75"1.32"Sintered IronL SGD 241.46
RFQ
A68514410689L07511/16"3/16" x 3/32"0.82"1.75"1.32"Sintered IronL SGD 16.47
RFQ
A68514410691L07513/16"3/16" x 3/32"0.82"1.75"1.32"Sintered IronL SGD 16.47
RFQ
StyleModelCoupling SizeBore SizeKeyway SizeLength through BoreOutside Dia.Hub LengthMaterialCoupling TypePrice (inc. GST)
A68514441313L0509mm3 mm x 1.4 mm15.75mm27.43mm27.94mmSintered IronL SGD 10.58
A68514441450L05010mm3 mm x 1.4 mm15.75mm27.43mm27.94mmSintered IronL SGD 11.51
A68514441315L05012mm4 mm x 1.8 mm15.75mm27.43mm27.94mmSintered IronL SGD 10.00
A68514441316L05014mm5 mm x 2.3 mm15.75mm27.43mm27.94mmSintered IronL SGD 13.12
A68514441451L05015mm5 mm x 2.3 mm15.75mm27.43mm27.94mmSintered IronL SGD 13.83
A68514456176L05016mm5 mm x 2.3 mm15.75mm27.43mm27.94mmSintered IronL SGD 10.58
A68514441455L07015mm5 mm x 2.3 mm19.05mm34.54mm31.24mmSintered IronL SGD 14.03
A68514476252L07012mm1/8 mm x 1/16 mm19.05mm34.54mm31.24mmSintered IronL SGD 44.66
RFQ
A68514456177L0709mm3 mm x 1.4 mm19.05mm34.54mm31.24mmSintered IronL SGD 14.77
RFQ
A68514441319L07019mm6 mm x 2.8 mm19.05mm34.54mm31.24mmSintered IronL SGD 13.97
RFQ
A68514441454L07012mm4 mm x 1.8 mm19.05mm34.54mm31.24mmSintered IronL SGD 14.77
RFQ
A68514441318L07016mm5 mm x 2.3 mm19.05mm34.54mm31.24mmSintered IronL SGD 14.03
RFQ
A68514459724L07018mm6 mm x 2.8 mm19.05mm34.54mm31.24mmSintered IronL SGD 13.97
RFQ
A68514445333L07017mm5 mm x 2.3 mm19.05mm34.54mm31.24mmSintered IronL SGD 14.03
RFQ
A68514441453L07011mm4 mm x 1.8 mm19.05mm34.54mm31.24mmSintered IronL SGD 14.12
RFQ
A68514449870L07010mm3 mm x 1.4 mm19.05mm34.54mm31.24mmSintered IronL SGD 16.39
A68514441317L07014mm5 mm x 2.3 mm19.05mm34.54mm31.24mmSintered IronL SGD 14.03
A68514450811L07511mm4 mm x 1.8 mm20.83mm44.45mm33.53mmSintered IronL SGD 26.26
A68514441322L07516mm5 mm x 2.3 mm20.83mm44.45mm33.53mmSintered IronL SGD 16.47
RFQ
A68514441884L07518mm6 mm x 2.8 mm20.83mm44.45mm33.53mmSintered IronL SGD 26.26
A68514444153L07512mm4 mm x 1.8 mm20.83mm44.45mm33.53mmSintered IronL SGD 17.95
A68514441458L07515mm5 mm x 2.3 mm20.83mm44.45mm33.53mmSintered IronL SGD 16.47
RFQ
A68514441321L07514mm5 mm x 2.3 mm20.83mm44.45mm33.53mmSintered IronL SGD 16.47
RFQ
A68514441457L07510mm3 mm x 1.4 mm20.83mm44.45mm33.53mmSintered IronL SGD 16.49
RFQ
A68514444298L0759mm3 mm x 1.4 mm20.83mm44.45mm33.53mmSintered IronL SGD 16.97
RFQ
StyleModelCoupling SizeBore SizeKeyway SizeLength through BoreOutside Dia.Hub LengthMaterialCoupling TypePrice (inc. GST)
A68514410128L0355/16"No Keyway0.27"0.63"0.55"Sintered IronL SGD 8.96
RFQ
A68514410127L0351/4"No Keyway0.27"0.63"0.55"Sintered IronL SGD 30.65
RFQ
A68514410124L0351/8"No Keyway0.27"0.63"0.55"Sintered IronL SGD 14.32
RFQ
A68514410126L0353/16"No Keyway0.27"0.63"0.55"Sintered IronL SGD 15.64
A68514424687L0353/8"No Keyway0.27"0.63"0.55"Sintered IronL SGD 30.65
A68514410207L0505/16"No Keyway0.62"1.08"1.1"Sintered IronL SGD 10.20
A68514410209L0507/16"No Keyway0.62"1.08"1.1"Sintered IronL SGD 10.58
A68514410208L0503/8"No Keyway0.62"1.08"1.1"Sintered IronL SGD 9.67
A68514410212L0509/16"No Keyway0.62"1.08"1.1"Sintered IronL SGD 8.96
RFQ
A68514476512L05015/32"No Keyway0.62"1.08"1.1"Sintered IronL SGD 160.48
RFQ
A68514410210L0501/2"No Keyway0.62"1.08"1.1"Sintered IronL SGD 9.67
A68514410214L0505/8"No Keyway0.62"1.08"1.1"Sintered IronL SGD 10.20
A68514410206L0501/4"No Keyway0.62"1.08"1.1"Sintered IronL SGD 10.06
A68514410420L0701/2"No Keyway0.75"1.36"1.23"Sintered IronL SGD 19.19
A68514410418L0703/8"No Keyway0.75"1.36"1.23"Sintered IronL SGD 35.02
RFQ
A68514410419L0707/16"No Keyway0.75"1.36"1.23"Sintered IronL SGD 19.42
A68514410595L0701/2"No Keyway0.75"1.36"1.23"Sintered IronL SGD 18.10
RFQ
A68514424771L0705/8"No Keyway0.75"1.36"1.23"Sintered IronL SGD 35.02
RFQ
A68514410416L0701/4"No Keyway0.75"1.36"1.23"Sintered IronL SGD 35.02
A68514410417L0705/16"No Keyway0.75"1.36"1.23"Sintered IronL SGD 14.12
RFQ
A68514444322L0755/8"No Keyway0.82"1.75"1.32"Sintered IronL SGD 16.47
RFQ
A68514410686L0759/16"No Keyway0.82"1.75"1.32"Sintered IronL SGD 36.73
RFQ
A68514410680L0751/4"No Keyway0.82"1.75"1.32"Sintered IronL SGD 36.73
A68514410681L0755/16"No Keyway0.82"1.75"1.32"Sintered IronL SGD 16.49
RFQ
A68514410684L0751/2"No Keyway0.82"1.75"1.32"Sintered IronL SGD 17.86
StyleModelCoupling SizeBore SizeKeyway SizeLength through BoreMaterialHub LengthNominal TorqueCoupling TypePrice (inc. GST)
A68514445872L0356mmNo Keyway6.86mmSintered Iron13.97mm0.4 NmL SGD 18.80
A68514441850L0354mmNo Keyway6.86mmSintered Iron13.97mm0.4 NmL SGD 8.96
RFQ
A68514447419L0355mmNo Keyway6.86mmSintered Iron13.97mm0.4 NmL SGD 18.80
A68514460679L0357mmNo Keyway6.86mmSintered Iron13.97mm0.4 NmL SGD 9.51
RFQ
A68514455169L0358mmNo Keyway6.86mmSintered Iron13.97mm0.4 NmL SGD 9.29
RFQ
A68514441460L0508mmNo Keyway15.75mmSintered Iron27.94mm2.97 NmL SGD 18.80
A68514448510L05012mmNo Keyway15.75mmSintered Iron27.94mm2.97 NmL SGD 9.51
RFQ
A68514458036L05014mmNo Keyway15.75mmSintered Iron27.94mm2.97 NmL SGD 8.96
RFQ
A68514446214L0505mmNo Keyway15.75mmSintered Iron27.94mm2.97 NmL SGD 9.51
RFQ
A68514410216L05010mmNo Keyway15.75mmSintered Iron27.94mm2.97 NmL SGD 13.06
RFQ
A68514450351L0506mmNo Keyway15.75mmSintered Iron27.94mm2.97 NmL SGD 18.80
A68514410215L0507mmNo Keyway15.75mmSintered Iron27.94mm2.97 NmL SGD 8.96
A68514460708L05015mmNo Keyway15.75mmSintered Iron27.94mm2.97 NmL SGD 9.51
RFQ
A68514451562L07012mmNo Keyway19.05mmSintered Iron24.89mm4.88 NmL SGD 14.77
RFQ
A68514458803L0707mmNo Keyway19.05mmSintered Iron24.89mm4.88 NmL SGD 14.22
RFQ
A68514447505L07014mmNo Keyway19.05mmSintered Iron24.89mm4.88 NmL SGD 14.77
RFQ
A68514441452L07010mmNo Keyway19.05mmSintered Iron24.89mm4.88 NmL SGD 14.77
RFQ
A68514446151L0708mmNo Keyway19.05mmSintered Iron24.89mm4.88 NmL SGD 14.77
RFQ
A68514410693L07515mmNo Keyway20.83mmSintered Iron33.53mm10.17 NmL SGD 16.47
RFQ
A68514441456L07510mmNo Keyway20.83mmSintered Iron33.53mm10.17 NmL SGD 16.49
RFQ
A68514448276L09012mmNo Keyway20.83mmSintered Iron33.53mm16.27 NmL SGD 26.03
RFQ
A68514410777L09019mmNo Keyway20.83mmSintered Iron33.53mm16.27 NmL SGD 24.99
RFQ
A68514460945L0908mmNo Keyway20.83mmSintered Iron33.53mm16.27 NmL SGD 26.03
RFQ
A68514441461L09014mmNo Keyway20.83mmSintered Iron33.53mm16.27 NmL SGD 24.99
A68514441465L09514mmNo Keyway25.4mmSintered Iron38.61mm21.92 NmL SGD 37.95
RFQ
LOVEJOY -

CJ Series Hubs, Cast Iron, A And B Style Inch Bores

StyleModelCoupling SizeBore SizeKeyway SizeHub StyleOutside Dia.Overall Coupling LengthCoupling TypePrice (inc. GST)
A68514466500------- SGD 257.39
RFQ
B68514465858CJ421 1/8"1/4" x 1/8"A3.74"4.96"CJ SGD 257.39
B68514464116CJ421 1/2"3/8" x 3/16"B3.74"4.96"CJ SGD 257.39
RFQ
B68514464117CJ421 7/8"1/2" x 1/4"B3.74"4.96"CJ SGD 241.25
RFQ
B68514466879CJ421 1/4"5/16" x 5/32"A3.74"4.96"CJ SGD 238.57
RFQ
C68514466499CJ421"-A3.74"4.960"CJ-
RFQ
B68514466428CJ421 5/8"3/8" x 3/16"A3.74"4.96"CJ SGD 257.39
RFQ
B68514466878CJ421 5/8"3/8" x 3/16"B3.74"4.96"CJ SGD 241.25
RFQ
B68514465857CJ421 3/8"5/16" x 5/32"A3.74"4.96"CJ SGD 238.57
RFQ
B68514465818CJ481 7/8"1/2" x 1/4"A4.13"5.51"CJ SGD 350.98
RFQ
B68514464146CJ482"1/2" x 1/4"B4.13"5.51"CJ SGD 318.64
RFQ
B68514465567CJ481 5/8"3/8" x 3/16"A4.13"5.51"CJ SGD 315.34
RFQ
B68514464147CJ481"1/4" x 1/8"A4.13"5.51"CJ SGD 350.98
RFQ
C68514465566CJ481 1/2"-A4.130"5.51"CJ SGD 315.34
RFQ
B68514465817CJ482 1/8"1/2" x 1/4"B4.13"5.51"CJ SGD 350.98
RFQ
C68514476246CJ552 7/16"-B4.720"6.300"CJ SGD 455.67
RFQ
C68514476274CJ552 5/8"-B4.720"6.300"CJ SGD 455.67
RFQ
C68514476325CJ551 1/8"-A4.720"6.300"CJ SGD 380.97
RFQ
C68514465644CJ551 5/8"-A4.720"6.300"CJ-
RFQ
B68514464124CJ552 3/8"5/8" x 5/16"B4.72"6.3"CJ SGD 385.30
B68514465645CJ551 1/2"3/8" x 3/16"A4.72"6.3"CJ SGD 382.62
RFQ
C68514464138CJ652 1/8"-A5.310"7.280"CJ-
RFQ
C68514465632CJ752 1/4"-A6.300"8.270"CJ-
RFQ
B68514465815CJ752 3/8"5/8" x 5/16"A6.3"8.27"CJ SGD 672.98
RFQ
B68514466034CJ752 7/8"3/4" x 3/8"A6.3"8.27"CJ SGD 775.11
LOVEJOY -

CJ Series Hubs, Cast Iron, A And B Style Metric Bores

Flexible couplings are designed for linking two rotating shafts which are not properly aligned, for transmitting rotational power (torque) from one shaft to another. Flexible couplings comprise two hubs and a spider, with each hub being attached to a shaft while the spider flexes between the hubs for accommodating the misalignment between shafts. Shaft misalignments are radial, parallel or angular, and cause complications while transferring rotational power from one shaft to the other, in the form of loads, vibrations, stresses and other forces which change as per the type of misalignment.
Lovejoy coupling hubs are ideal for internal gas combustion engine and electrical motor applications. These Lovejoy CJ coupling hubs feature a curved jaw profile that helps in concentrating torque to the central region of the spider's limbs, thereby improving the efficiency of the elastomeric material. The three piece design of Lovejoy CJ coupling hubs makes them compatible with both radially and axially misaligned spiders.
These Lovejoy CJ coupling hubs are made of cast iron to ensure high compression strength and resisting corrosion on exposed surfaces. These Lovejoy CJ coupling hubs do not require any lubrication and prevent metal to metal contact for reduced friction. Lovejoy CJ coupling hubs, when assembled to form CJ Series couplings, deliver torque ranging from 67 to 247800 inch-lb.

StyleModelCoupling SizeBore SizeKeyway SizeHub StyleOutside Dia.Overall Coupling LengthCoupling TypePrice (inc. GST)
A68514476399CJ42NA-A95mm125.98mmCJ SGD 238.57
RFQ
B68514462053CJ42/5538mm10 mm x 3.3 mmA95mm72.9mmCJ SGD 238.57
RFQ
A68514466257CJ42/5525mm-A95mm72.90mmCJ-
RFQ
A68514462057CJ42/5550mm-B95mm72.90mmCJ SGD 241.25
RFQ
A68514462055CJ42/5545mm-B95mm72.90mmCJ SGD 241.25
RFQ
A68514462049CJ42/5528mm-A95mm72.90mmCJ-
RFQ
B68514462058CJ42/5555mm16 x 4.3 mmB95mm72.9mmCJ SGD 241.25
RFQ
B68514462054CJ42/5542mm12 x 3.3 mmB95mm72.9mmCJ SGD 257.39
RFQ
B68514462052CJ42/5535mm10 mm x 3.3 mmA95mm72.9mmCJ SGD 238.57
RFQ
B68514462051CJ42/5532mm10 mm x 3.3 mmA95mm72.9mmCJ SGD 238.57
RFQ
B68514462414CJ42/55NANo KeywayA95mm72.9mmCJ SGD 177.40
RFQ
B68514462048CJ42/55NANo KeywayB95mm72.9mmCJ SGD 178.20
RFQ
B68514462050CJ42/5530mm8 mm x 3.3 mmA95mm72.9mmCJ SGD 238.57
RFQ
B68514462056CJ42/5548mm14 mm x 3.8 mmB95mm72.9mmCJ SGD 241.25
RFQ
A68514466826CJ48/6050mm-B104.90mm80.26mmCJ-
RFQ
B68514462415CJ48/60NANo KeywayA104.9mm80.26mmCJ SGD 259.20
RFQ
B68514466897CJ48/6032mm10 mm x 3.3 mmA104.9mm80.26mmCJ SGD 315.34
RFQ
B68514462059CJ48/60NANo KeywayB104.9mm80.26mmCJ SGD 259.20
RFQ
A68514462060CJ55/70NA-B119.89mm90.93mmCJ SGD 313.89
RFQ
B68514462416CJ55/70NANo KeywayA119.89mm90.93mmCJ SGD 345.13
RFQ
A68514466195CJ55/7065mm-B119.89mm90.93mmCJ SGD 382.62
RFQ
B68514462417CJ65/75NANo KeywayA134.87mm105.41mmCJ SGD 425.54
RFQ
B68514462061CJ65/75NANo KeywayB134.87mm105.41mmCJ SGD 428.64
RFQ
A68514464121CJ75/9050mm-A160.02mm119.89mmCJ SGD 675.05
RFQ
A68514464744CJ75/9060mm-A160.02mm119.89mmCJ-
RFQ
LOVEJOY -

CJ Series Hubs, Powder Metal, A And B Style Inch Bores

StyleModelCoupling SizeBore SizeKeyway SizeHub StyleOutside Dia.Overall Coupling LengthCoupling TypePrice (inc. GST)
A68514462000------- SGD 46.80
RFQ
B68514461984CJ145/16"No KeywayB1.18"1.38"CJ SGD 39.37
C68514461985CJ143/8"-B1.180"1.380"CJ-
RFQ
C68514461987CJ147/16"-B1.180"1.380"CJ-
RFQ
C68514466569CJ145/8"-B1.180"1.380"CJ-
RFQ
C68514466884CJ143/16"-B1.180"1.380"CJ-
RFQ
C68514461986CJ147/16"-B1.180"1.380"CJ-
RFQ
C68514461988CJ141/2"-B1.180"1.380"CJ-
RFQ
B68514476357CJ193/4"1/8" x 1/16"A1.57"2.6"CJ SGD 44.54
RFQ
C68514476351CJ191/4"-A1.57"2.6"CJ SGD 44.54
RFQ
C68514476352CJ195/16"-A1.57"2.6"CJ SGD 33.08
RFQ
C68514476353CJ193/8"-A1.57"2.6"CJ SGD 44.54
RFQ
C68514476354CJ197/16"-A1.57"2.6"CJ SGD 44.54
RFQ
B68514461999CJ197/16"3/16" x 3/32"B1.57"2.6"CJ SGD 46.80
RFQ
C68514476355CJ197/16"-A1.57"2.6"CJ SGD 44.54
RFQ
C68514476358CJ195/8"-A1.57"2.6"CJ SGD 44.54
RFQ
B68514476356CJ191/2"No KeywayA1.57"2.6"CJ SGD 44.54
RFQ
B68514476359CJ195/8"3/16" x 3/32"A1.57"2.6"CJ SGD 44.54
RFQ
C68514476361CJ241/2"-A2.200"3.070"CJ SGD 64.51
RFQ
C68514476363CJ245/8"-A2.200"3.070"CJ SGD 64.51
RFQ
C68514476369CJ247/16"-A2.200"3.070"CJ SGD 64.51
RFQ
B68514476362CJ241/2"1/8" x 1/16"A2.2"3.07"CJ SGD 64.51
RFQ
B68514462010CJ241 1/8"1/4" x 1/8"B2.2"3.07"CJ SGD 64.51
RFQ
B68514462011CJ241 1/4"1/4" x 1/8"B2.2"3.07"CJ SGD 63.91
RFQ
B68514476365CJ243/4"3/16" x 3/32"A2.2"3.07"CJ SGD 64.51
RFQ
LOVEJOY -

CJ Series Hubs, Powder Metal, A Style Metric Bores

StyleModelCoupling SizeBore SizeKeyway SizeHub StyleOutside Dia.Overall Coupling LengthCoupling TypePrice (inc. GST)
A68514472002-25mm8 mm x 3.3 mmA80mm114.05mmCJ SGD 122.84
B68514472532------- SGD 44.54
RFQ
A68514472533CJ1914mm5 mm x 2.3 mmA39.88mm66.04mmCJ SGD 44.54
RFQ
A68514472542CJ2419mm6 mm x 2.8 mmA55.88mm77.98mmCJ SGD 64.51
RFQ
A68514472538CJ2414mm5 mm x 2.3 mmA55.88mm77.98mmCJ SGD 70.19
RFQ
A68514472543CJ2420mm6 mm x 2.8 mmA55.88mm77.98mmCJ SGD 70.19
RFQ
C68514472554CJ2825mm-A2.560"3.540"CJ-
RFQ
A68514472006CJ3835mm10 mm x 3.3 mmA80mm114.05mmCJ SGD 132.13
A68514472007CJ3838mm10 mm x 3.3 mmA80mm114.05mmCJ SGD 140.46
A68514472004CJ3830mm8 mm x 3.3 mmA80mm114.05mmCJ SGD 122.84
RFQ
D68514472003CJ3828mm-A80mm114.05mmCJ SGD 115.96
RFQ
A68514472005CJ3832mm10 mm x 3.3 mmA80mm114.05mmCJ SGD 122.84
RFQ
LOVEJOY -

CJ Series Hubs, Powder Metal, B Style, Metric Bores

StyleModelCoupling SizeBore SizeKeyway SizeHub StyleOutside Dia.Overall Coupling LengthMaterialCoupling TypePrice (inc. GST)
A68514461151CJ1412mm4 mm x 1.8 mmB29.97mm22.35mmPowder MetalCJ SGD 39.37
B68514461152CJ1414mm-B29.97mm22.35mmPowder MetalCJ-
RFQ
B68514465080CJ19/2420mm-B39.88mm38.86mmPowder MetalCJ SGD 43.81
RFQ
A68514461157CJ19/2424mm8 mm x 3.3 mmB39.88mm38.86mmPowder MetalCJ SGD 44.06
RFQ
A68514461156CJ19/2419mm6 mm x 2.8 mmB39.88mm38.86mmPowder MetalCJ SGD 46.80
RFQ
A68514461154CJ19/24NANo KeywayB39.88mm38.86mmPowder MetalCJ SGD 26.52
RFQ
A68514460880CJ24/32NANo KeywayB55.88mm45.72mmPowder MetalCJ SGD 43.87
RFQ
A68514461104CJ24/3224mm8 mm x 3.3 mmB55.88mm45.72mmPowder MetalCJ SGD 64.51
A68514461106CJ24/3228mm8 mm x 3.3 mmB55.88mm45.72mmPowder MetalCJ SGD 70.19
RFQ
A68514461105CJ24/3225mm8 mm x 3.3 mmB55.88mm45.72mmPowder MetalCJ SGD 64.51
RFQ
A68514461165CJ28/3825mm8 mm x 3.3 mmB65.02mm52.58mmPowder MetalCJ SGD 87.15
RFQ
A68514461111CJ28/3828mm8 mm x 3.3 mmB65.02mm52.58mmPowder MetalCJ SGD 93.60
RFQ
A68514461113CJ28/3838mm10 mm x 3.3 mmB65.02mm52.58mmPowder MetalCJ SGD 93.60
RFQ
A68514465320CJ28/3832mm10 mm x 3.3 mmB65.02mm52.58mmPowder MetalCJ SGD 93.60
RFQ
B68514461112CJ28/3830mm-B65.02mm52.58mmPowder MetalCJ SGD 86.51
RFQ
A68514460881CJ28/38NANo KeywayB65.02mm52.58mmPowder MetalCJ SGD 65.77
RFQ
B68514460882CJ38/45NA-B80mm65.79mmPowder MetalCJ SGD 94.87
RFQ
A68514460906CJ38/4542mm12 mm x 3.3 mmB80mm65.79mmPowder MetalCJ SGD 117.76
RFQ
B68514466765CJ38/4545mm-B80mm65.79mmPowder MetalCJ-
RFQ
StyleModelCoupling SizeBore SizeKeyway SizeLength through BoreOutside Dia.Hub LengthMaterialPrice (inc. GST)
A68514411581LC1001 1/4"1/4" x 1/8"1.38"2.53"2.13"Sintered Iron SGD 106.72
A68514411842LC1101 3/8"5/16" x 5/32"1.69"3.31"2.56"Sintered Iron SGD 128.57
RFQ
A68514456566LC1107/8"1/4" x 1/8"1.69"3.31"2.56"Sintered Iron SGD 120.58
A68514411832LC1107/8"3/16" x 3/32"1.69"3.31"2.56"Sintered Iron SGD 120.58
A68514412069LC1501"1/4" x 1/8"1.75"3.75"2.75"Sintered Iron SGD 149.50
RFQ
A68514412337LC1901 7/8"1/2" x 1/4"1.94"4.5"2.94"Sintered Iron SGD 288.40
RFQ
A68514444064LC1902 1/8"1/2" x 1/4"1.94"4.5"2.94"Sintered Iron SGD 288.40
RFQ
A68514412332LC1901 1/2"3/8" x 3/16"1.94"4.5"2.94"Sintered Iron SGD 288.40
RFQ
A68514412329LC1901 3/8"5/16" x 5/32"1.94"4.5"2.94"Sintered Iron SGD 288.40
RFQ
A68514412466LC2251 1/2"3/8" x 3/16"2.19"5"3.19"Cast Iron SGD 333.45
RFQ
A68514412472LC2251 7/8"1/2" x 1/4"2.19"5"3.19"Cast Iron SGD 333.45
LOVEJOY -

LC Type Hubs With Keyway, Metric Bores

Lovejoy LC style jaw couplings are designed for accommodating shaft misalignment & power transmission for gearboxes, electric pumps, motors, compressors and blowers. These jaw couplings feature radially removable snap wrap elastomer for ease-of-maintenance, collar attachment for securely holding centre element in place and sintered iron construction for safe operation even upon elastomer failure. Choose from a broad range of these couplings, available in speed ratings of 5000 & 9000 rpm on Raptor Supplies.

StyleModelCoupling SizeBore SizeKeyway SizeLength through BoreOutside Dia.MaterialNominal TorquePrice (inc. GST)
A68514458560LC09519mm6 mm x 2.8 mm25.4mm53.59mmSintered Iron21.92 Nm SGD 48.19
A68514458575LC19028mm8 mm x 3.3 mm49.28mm114.3mmSintered Iron195.24 Nm SGD 288.40
StyleModelCoupling SizeBore SizeKeyway SizeHub StyleLength through BoreMaterialNominal TorqueMax. SpeedPrice (inc. GST)
A68514449706AL0501/2"1/8" x 1/16"10.62"Aluminum26.3 in.-lbs.18000 rpm SGD 10.69
A68514410482AL0705/8"3/16" x 3/32"10.75"Aluminum43.2 in.-lbs.14000 rpm SGD 19.73
A68514410473AL0701/2"1/8" x 1/16"10.75"Aluminum43.2 in.-lbs.14000 rpm SGD 36.84
A68514410491AL0703/4"3/16" x 3/32"10.75"Aluminum43.2 in.-lbs.14000 rpm SGD 20.84
A68514410639AL0755/8"3/16" x 3/32"20.81"Aluminum90 in.-lbs.11000 rpm SGD 21.09
A68514410640AL0753/4"3/16" x 3/32"20.81"Aluminum90 in.-lbs.11000 rpm SGD 22.25
A68514410641AL07513/16"3/16" x 3/32"20.81"Aluminum90 in.-lbs.11000 rpm SGD 17.77
A68514410635AL0751/2"1/8" x 1/16"20.81"Aluminum90 in.-lbs.11000 rpm SGD 22.25
A68514410642AL0757/8"3/16" x 3/32"20.81"Aluminum90 in.-lbs.11000 rpm SGD 23.02
A68514447835AL0753/4"1/8" x 1/16"20.81"Aluminum90 in.-lbs.11000 rpm SGD 17.77
A68514410796AL0901/2"1/8" x 1/16"20.91"Aluminum144 in.-lbs.9000 rpm SGD 27.12
A68514410798AL0905/8"3/16" x 3/32"20.91"Aluminum144 in.-lbs.9000 rpm SGD 35.27
A68514410800AL0903/4"3/16" x 3/32"20.91"Aluminum144 in.-lbs.9000 rpm SGD 35.27
A68514410802AL0907/8"3/16" x 3/32"20.91"Aluminum144 in.-lbs.9000 rpm SGD 35.27
A68514447725AL0903/4"1/8" x 1/16"20.91"Aluminum144 in.-lbs.9000 rpm SGD 27.12
A68514476519AL0905/8"1/8"20.91"Aluminum144 in.-lbs.9000 rpm SGD 84.82
A68514444812AL0909/16"1/8" x 1/16"20.91"Aluminum144 in.-lbs.9000 rpm SGD 27.12
A68514417851AL09511/16"3/16" x 3/32"11"Aluminum194 in.-lbs.9000 rpm SGD 40.78
A68514437994AL0959/16"1/8" x 1/16"11"Aluminum194 in.-lbs.9000 rpm SGD 40.78
A68514417857AL0951 1/16"1/4" x 1/8"11"Aluminum194 in.-lbs.9000 rpm SGD 40.78
A68514417853AL09513/16"3/16" x 3/32"11"Aluminum194 in.-lbs.9000 rpm SGD 70.62
A68514446295AL0953/4"1/8" x 1/16"11"Aluminum194 in.-lbs.9000 rpm SGD 44.76
A68514417858AL0951 1/8"1/4" x 1/8"11"Aluminum194 in.-lbs.9000 rpm SGD 52.30
A68514417856AL0951"1/4" x 1/8"11"Aluminum194 in.-lbs.9000 rpm SGD 49.72
A68514417854AL0957/8"3/16" x 3/32"11"Aluminum194 in.-lbs.9000 rpm SGD 54.17
StyleModelCoupling SizeBore SizeKeyway SizeHub StyleLength through BoreMaterialNominal TorqueMax. SpeedPrice (inc. GST)
A68514465696AL07014mm5 mm x 2.3 mm119.05mmAluminum4.88 Nm14000 rpm SGD 16.26
RFQ
A68514465698AL07019mm6 mm x 2.8 mm119.05mmAluminum4.88 Nm14000 rpm SGD 16.26
A68514465694AL07011mm4 mm x 1.8 mm119.05mmAluminum4.88 Nm14000 rpm SGD 16.26
A68514462906AL07015mm5 mm x 2.3 mm119.05mmAluminum4.88 Nm14000 rpm SGD 16.26
A68514456487AL07012mm4 mm x 1.8 mm119.05mmAluminum4.88 Nm14000 rpm SGD 16.26
A68514447427AL07519mm6 mm x 2.8 mm220.57mmAluminum10.17 Nm11000 rpm SGD 17.77
A68514464655AL07512mm4 mm x 1.8 mm220.57mmAluminum10.17 Nm11000 rpm SGD 17.77
A68514459394AL07520mm6 mm x 2.8 mm220.57mmAluminum10.17 Nm11000 rpm SGD 17.77
A68514449633AL07515mm5 mm x 2.3 mm220.57mmAluminum10.17 Nm11000 rpm SGD 17.77
A68514451098AL07511mm4 mm x 1.8 mm220.57mmAluminum10.17 Nm11000 rpm SGD 17.77
A68514447302AL07514mm5 mm x 2.3 mm220.57mmAluminum10.17 Nm11000 rpm SGD 17.77
A68514441924AL07510mm3 mm x 1.4 mm220.57mmAluminum10.17 Nm11000 rpm SGD 17.77
A68514466758AL07516mm5 mm x 2.3 mm220.57mmAluminum10.17 Nm11000 rpm SGD 17.77
A68514460887AL09017mm5 mm x 2.3 mm223.11mmAluminum16.27 Nm9000 rpm SGD 27.12
A68514458621AL09014mm5 mm x 2.3 mm223.11mmAluminum16.27 Nm9000 rpm SGD 26.97
A68514456514AL09010mm3 mm x 1.4 mm223.11mmAluminum16.27 Nm9000 rpm SGD 26.93
A68514458622AL09015mm5 mm x 2.3 mm223.11mmAluminum16.27 Nm9000 rpm SGD 26.97
A68514444679AL09019mm6 mm x 2.8 mm223.11mmAluminum16.27 Nm9000 rpm SGD 27.12
A68514458620AL09011mm4 mm x 1.8 mm223.11mmAluminum16.27 Nm9000 rpm SGD 26.97
A68514460429AL09012mm4 mm x 1.8 mm223.11mmAluminum16.27 Nm9000 rpm SGD 27.12
A68514448347AL09520mm6 mm x 2.8 mm125.4mmAluminum21.92 Nm9000 rpm SGD 40.78
A68514456801AL09515mm5 mm x 2.3 mm125.4mmAluminum21.92 Nm9000 rpm SGD 40.78
A68514447015AL09528mm8 mm x 3.3 mm125.4mmAluminum21.92 Nm9000 rpm SGD 40.78
A68514445736AL09524mm8 mm x 3.3 mm125.4mmAluminum21.92 Nm9000 rpm SGD 40.78
A68514456800AL09514mm5 mm x 2.3 mm125.4mmAluminum21.92 Nm9000 rpm SGD 40.78
LOVEJOY -

AL Type Hubs Without Keyway, Inch Bores

The AL-Type hubs by Lovejoy are used with coupling spiders to create AL Type couplings. These lightweight Lovejoy hubs feature aluminium construction, a maximum rotational speed of 18000 rpm and a nominal torque rating of up to 1240 in.lb. They do not require lubrication and are interchangeable with all standard coupling hubs. These quality AL Type hubs are available in different bore diameters, keyway sizes and overall lengths.

StyleModelCoupling SizeBore SizeKeyway SizeHub StyleLength through BoreMaterialNominal TorqueMax. SpeedPrice (inc. GST)
A68514410253AL0505/16"No Keyway10.62"Aluminum26.3 in.-lbs.18000 rpm SGD 13.60
A68514410252AL0501/4"No Keyway10.62"Aluminum26.3 in.-lbs.18000 rpm SGD 13.79
A68514410256AL0507/16"No Keyway10.62"Aluminum26.3 in.-lbs.18000 rpm SGD 10.69
A68514410259AL0505/8"No Keyway10.62"Aluminum26.3 in.-lbs.18000 rpm SGD 13.87
A68514410257AL0501/2"No Keyway10.62"Aluminum26.3 in.-lbs.18000 rpm SGD 13.29
A68514410254AL0503/8"No Keyway10.62"Aluminum26.3 in.-lbs.18000 rpm SGD 13.79
A68514410471AL0701/2"No Keyway10.75"Aluminum43.2 in.-lbs.14000 rpm SGD 20.90
A68514410469AL0707/16"No Keyway10.75"Aluminum43.2 in.-lbs.14000 rpm SGD 20.84
A68514410463AL0701/4"No Keyway10.75"Aluminum43.2 in.-lbs.14000 rpm SGD 16.26
A68514410464AL0705/16"No Keyway10.75"Aluminum43.2 in.-lbs.14000 rpm SGD 16.26
A68514410466AL0703/8"No Keyway10.75"Aluminum43.2 in.-lbs.14000 rpm SGD 16.26
A68514410480AL0705/8"No Keyway10.75"Aluminum43.2 in.-lbs.14000 rpm SGD 36.84
A68514410632AL0753/8"No Keyway20.81"Aluminum90 in.-lbs.11000 rpm SGD 17.77
A68514461817AL0755/8"No Keyway20.81"Aluminum90 in.-lbs.11000 rpm SGD 17.77
A68514410633AL0757/16"No Keyway20.81"Aluminum90 in.-lbs.11000 rpm SGD 17.77
A68514410637AL0759/16"No Keyway20.81"Aluminum90 in.-lbs.11000 rpm SGD 38.12
A68514410634AL0751/2"No Keyway20.81"Aluminum90 in.-lbs.11000 rpm SGD 23.02
A68514410631AL0755/16"No Keyway20.81"Aluminum90 in.-lbs.11000 rpm SGD 17.77
A68514410630AL0751/4"No Keyway20.81"Aluminum90 in.-lbs.11000 rpm SGD 17.77
A68514410792AL0905/16"No Keyway20.91"Aluminum144 in.-lbs.9000 rpm SGD 46.25
A68514444004AL0905/8"No Keyway20.91"Aluminum144 in.-lbs.9000 rpm SGD 27.12
A68514410795AL0901/2"No Keyway20.91"Aluminum144 in.-lbs.9000 rpm SGD 35.21
A68514410794AL0907/16"No Keyway20.91"Aluminum144 in.-lbs.9000 rpm SGD 27.12
A68514410797AL0909/16"No Keyway20.91"Aluminum144 in.-lbs.9000 rpm SGD 46.27
A68514410793AL0903/8"No Keyway20.91"Aluminum144 in.-lbs.9000 rpm SGD 27.12
LOVEJOY -

AL Type Hubs Without Keyway, Metric Bores

Lovejoy AL Type jaw coupling hubs without keyway are used to link two rotating shafts for torque transmission from one shaft to the other. These jaw coupling hubs are made of aluminium for light weight and corrosion resistance. They come equipped with a SOX (NBR) rubber elastomer spider capable of being operated at temperatures ranging from -40 to 100 degrees C.

StyleModelCoupling SizeBore SizeKeyway SizeHub StyleLength through BoreMaterialNominal TorqueMax. SpeedPrice (inc. GST)
A68514448973AL0758mmNo Keyway220.57mmAluminum10.17 Nm11000 rpm SGD 17.77
A68514456137AL07520mmNo Keyway220.57mmAluminum10.17 Nm11000 rpm SGD 17.77
StyleModelCoupling SizeBore SizeKeyway SizeThreadLength through BoreOutside Dia.Hub StyleMaterialPrice (inc. GST)
A68514426040C2261 1/2"3/8" x 3/16"1/2-132.75"5.15"-Cast Iron SGD 402.84
RFQ
A68514426037C2261 1/4"1/4" x 1/8"1/2-132.75"5.15"-Cast Iron SGD 391.28
RFQ
A68514426036C2261 1/8"1/4" x 1/8"1/2-132.75"5.15"-Cast Iron SGD 391.28
RFQ
A68514426045C2262 1/8"1/2" x 1/4"1/2-132.75"5.15"-Cast Iron SGD 423.27
RFQ
A68514426043C2261 7/8"1/2" x 1/4"1/2-132.75"5.15"-Cast Iron SGD 423.27
RFQ
A68514426042C2261 3/4"3/8" x 3/16"1/2-132.75"5.15"-Cast Iron SGD 394.79
RFQ
A68514426047C2262 3/8"5/8" x 5/16"1/2-132.75"5.15"-Cast Iron SGD 392.52
RFQ
A68514426046C2262 1/4"1/2" x 1/4"1/2-132.75"5.15"-Cast Iron SGD 392.32
RFQ
A68514426038C2261 3/8"5/16" x 5/32"1/2-132.75"5.15"-Cast Iron SGD 402.84
RFQ
A68514426044C2262"1/2" x 1/4"1/2-132.75"5.15"-Cast Iron SGD 450.31
RFQ
A68514426041C2261 5/8"3/8" x 3/16"1/2-132.75"5.15"-Cast Iron SGD 392.32
RFQ
A68514426060C2762 3/8"5/8" x 5/16"1/2-133.12"6.18"-Cast Iron SGD 507.27
RFQ
A68514444547C2762 1/4"1/2" x 1/4"1/2-133.12"6.18"-Cast Iron SGD 481.47
RFQ
A68514426051C2761 1/4"1/4" x 1/8"1/2-133.12"6.18"-Cast Iron SGD 480.23
RFQ
A68514426064C2762 7/8"3/4" x 3/8"1/2-133.12"6.18"-Cast Iron SGD 480.02
RFQ
A68514426053C2761 1/2"3/8" x 3/16"1/2-133.12"6.18"-Cast Iron SGD 480.02
RFQ
A68514426054C2761 5/8"3/8" x 3/16"1/2-133.12"6.18"-Cast Iron SGD 480.02
RFQ
A68514426055C2761 3/4"3/8" x 3/16"1/2-133.12"6.18"-Cast Iron SGD 480.02
RFQ
A68514426052C2761 3/8"5/16" x 5/32"1/2-133.12"6.18"-Cast Iron SGD 507.27
A68514426057C2762"1/2" x 1/4"1/2-133.12"6.18"-Cast Iron SGD 481.06
RFQ
A68514446120C2762 1/2"5/8" x 5/16"1/2-133.12"6.18"-Cast Iron SGD 481.47
RFQ
A68514446755C2762 5/8"5/8" x 5/16"1/2-133.12"6.18"-Cast Iron SGD 480.23
RFQ
A68514426050C2761 1/8"1/4" x 1/8"1/2-133.12"6.18"-Cast Iron SGD 487.45
RFQ
A68514448194C2802"1/2" x 1/4"1/2-133.12"7.5"-Cast Iron SGD 555.56
RFQ
A68514451525C2802 7/8"3/4" x 3/8"1/2-133.12"7.5"-Cast Iron SGD 543.79
RFQ
LOVEJOY -

C Type Hubs With Keyway, Metric Bores

Lovejoy C type jaw couplings are suitable for providing shaft-to-shaft connection for power transmission and accommodating parallel & angular misalignment in industrial machinery, electric motors and compressors. These higher torque jaw couplings feature radially removable elastomeric cushions for ease-of-maintenance, no metal to metal contact for wear minimisation and cast iron construction for providing resistance against oil, sand, dirt, grease & moisture, thereby ensuring safe operation even upon elastomeric cushion failure. Choose from an extensive range of these jaw type couplings, available in 3500 & 4200 rpm variants on Raptor Supplies.

StyleModelCoupling SizeBore SizeKeyway SizeLength through BoreOutside Dia.Hub StyleMaterialNominal TorquePrice (inc. GST)
A68514462792C22630mm8 mm x 3.3 mm69.85mm130.81mm-Cast Iron337.6 Nm SGD 415.64
RFQ
A68514445219C27642mm12 mm x 3.3 mm79.25mm156.97mm-Cast Iron532.84 Nm SGD 485.80
A68514459032C27670mm20 mm x 4.9 mm79.25mm156.97mm-Cast Iron532.84 Nm SGD 480.02
RFQ
A68514447265C27660mm18 mm x 4.4 mm79.25mm156.97mm-Cast Iron532.84 Nm SGD 480.02
RFQ
A68514449012C28055mm16 mm x 4.3 mm79.25mm190.5mm-Cast Iron854.17 Nm SGD 594.56
A68514449378C28060mm18 mm x 4.4 mm79.25mm190.5mm-Cast Iron854.17 Nm SGD 593.94
RFQ
A68514454363C28590mm25 mm x 5.4 mm95.25mm215.9mm-Cast Iron1037.43 Nm SGD 705.59
RFQ
A68514447813C29575mm20 mm x 4.9 mm95.25mm231.65mm-Cast Iron1281.25 Nm SGD 917.54
RFQ
A68514462695C295595mm25 mm x 5.4 mm107.95mm231.65mm3Cast Iron2135.42 Nm SGD 1102.03
RFQ
LOVEJOY -

SS Type Hubs With Keyway, Inch Bores

Lovejoy jaw type couplings are designed for light-, medium- and heavy-duty electrical motor and internal combustion power transmission applications. These SS type couplings feature fail-safe stainless-steel construction that continues to perform even if the elastomer fails. They come with passivated finished bores to offer added rust protection and can accommodate both angular and parallel shaft misalignments. These units are interchangeable with L and AL line of hubs and are available in overall lengths ranging from 2 to 4.2 inches on Raptor Supplies.

StyleModelCoupling SizeBore SizeKeyway SizeLength through BoreOutside Dia.MaterialHub LengthCoupling TypePrice (inc. GST)
A68514470007SS0751/2"1/8" x 1/16"0.82"1.36"Stainless Steel1.32"SS SGD 194.00
A68514470009SS0753/4"3/16" x 3/32"0.82"1.36"Stainless Steel1.32"SS SGD 184.77
A68514470008SS0755/8"3/16" x 3/32"0.82"1.36"Stainless Steel1.32"SS SGD 184.77
A68514470011SS0951/2"1/8" x 1/16"0.82"1.36"Stainless Steel1.34"SS SGD 241.26
A68514470012SS0955/8"3/16" x 3/32"1"2.11"Stainless Steel1.52"SS SGD 241.26
A68514470013SS0953/4"3/16" x 3/32"1"2.11"Stainless Steel1.52"SS SGD 229.33
A68514470014SS0957/8"3/16" x 3/32"1"2.54"Stainless Steel1.52"SS SGD 241.26
A68514470015SS0951"1/4" x 1/8"1"2.11"Stainless Steel1.52"SS SGD 221.28
A68514470016SS0951 1/8"1/4" x 1/8"1"2.11"Stainless Steel1.52"SS SGD 241.26
A68514470020SS1001 1/8"1/4" x 1/8"1.38"2.54"Stainless Steel2.09"SS SGD 274.99
A68514470022SS1001 3/8"5/16" x 5/32"1.75"2.54"Stainless Steel2.46"SS SGD 283.96
A68514470017SS1003/4"3/16" x 3/32"1.38"2.54"Stainless Steel2.09"SS SGD 283.96
A68514470019SS1001"1/4" x 1/8"1.38"2.54"Stainless Steel2.09"SS SGD 283.38
A68514470018SS1007/8"3/16" x 3/32"1.38"2.54"Stainless Steel2.09"SS SGD 283.96
A68514470026SS1101 3/8"5/16" x 5/32"1.75"3.32"Stainless Steel2.63"SS SGD 532.83
A68514470027SS1101 1/2"3/8" x 3/16"1.68"3.32"Stainless Steel2.56"SS SGD 532.83
A68514470023SS1101"1/4" x 1/8"1.68"3.32"Stainless Steel2.56"SS SGD 400.71
RFQ
A68514470025SS1101 1/4"1/4" x 1/8"1.68"3.32"Stainless Steel2.56"SS SGD 350.83
RFQ
StyleModelCoupling SizeBore SizeKeyway SizeLength through BoreOutside Dia.MaterialCoupling TypeMax. BorePrice (inc. GST)
A68514476581SS09518mm6 mm x 2.8 mm25.4mm53.59mmStainless SteelSS28mm SGD 283.73
RFQ
A68514476599SS19035mm10 mm x 3.3 mm49.28mm114.3mmStainless SteelSS56.26mm SGD 1813.46
LOVEJOY -

SS Type Hubs With Rough Stock Bore

Lovejoy SS type jaw coupling hubs are designed for power transmission and accommodating shaft misalignment for gearboxes, electric pumps, motors, blowers and compressors. They transfer shocks and misalignments to the central part of the coupling assembly for wear minimisation on the shaft assembly. These hubs have no metal to metal contact to eliminate the need for maintenance and provide resistance to dirt, sand, oil, moisture and grease. They are made of stainless steel for fail safe operation even upon elastomer failure. Variants are available in bore diameters of 1/4 & 5/8 inches on Raptor Supplies.

StyleModelCoupling SizeBore SizeLength through BoreMax. BoreHub LengthOutside Dia.MaterialCoupling TypePrice (inc. GST)
A68514470001SS0751/4"0.82"0.875"1.32"1.36"Stainless SteelSS SGD 76.04
RFQ
A68514470004SS1105/8"1.68"1.625"2.56"3.32"Stainless SteelSS SGD 266.17
LOVEJOY -

SS Type Hubs Without Keyway, Inch Bores

Lovejoy SS style jaw coupling hubs are designed for power transmission and accommodating shaft misalignment in gearboxes, electric pumps, motors, blowers and compressors. They transfer misalignments and shocks to the central part of the coupling assembly for wear minimisation on the shaft assembly. These SS hubs feature finished bores to ensure rust protection and are capable of performing even in case of elastomer failure.

StyleModelCoupling SizeBore SizeKeyway SizeLength through BoreOutside Dia.MaterialCoupling TypeHub LengthPrice (inc. GST)
A68514470006SS0751/4"No Keyway0.82"1.36"Stainless SteelSS1.32" SGD 146.25
RFQ
A68514476406SS0951/2"No Keyway1"2.11"Stainless SteelSS1.52" SGD 293.01

Jaw Coupling Hubs

Jaw couplings are a type of flexible couplings designed to link two rotating shafts that are not properly aligned for transferring the rotational power or torque from one shaft to another. The jaw couplings are suitable for diverse industrial applications due to their versatile & robust construction and good speed capability, chemical resistance & dampening capability. Jaw couplings are easy to install, as they consist of only two jaw coupling hubs and a spider. These jaw coupling hubs are attached to the shafts and the spider flexes between the hubs for accommodating the misalignment & shocks. Shaft misalignments are mostly radial, parallel or angular and cause complications to transferring rotational power from one shaft to the other in the form of loads, vibrations, stresses and other forces, which change as per the type of misalignment.
The jaw coupling hubs are popular due to their fail-safe design that ensures interlocking of the coupling & continued operation (up to a certain extent) even after the elastomeric spider fails, wears out or gets loosened. Unlike gear, grid or chain couplings, jaw coupling hubs are also maintenance-free as they do not require periodic application of grease or additional maintenance (provided that the spider remains intact). These jaw coupling hubs are made of cast iron, powder metal, sintered iron, sintered carbon steel, steel or zinc alloy to ensure high compression strength and durability. They are also offered in aluminium or stainless steel construction for lightweight and resistance to corrosion in food & pharmaceutical environments.
Lovejoy jaw coupling hubs are available in two broad types: straight jaw coupling hubs and curved jaw coupling hubs. Straight jaw hubs are made from a diverse range of materials and feature straight jaws for adjusting to various styles of spiders. They are used with open centre spiders, snap wrap spiders with retainer rings; closed centre spiders having Nitrile Butadiene (Buna N), urethane, Hytrel or bronze construction. Curved jaw coupling hubs (Lovejoy CJ Series) on the other hand, feature a curved jaw profile that concentrates the torque to the central region of the spider's limbs, thereby improving the efficiency of the elastomer material and reduces rotational backlash. They are mostly used with open centre elastomeric spiders to accommodate shafts having little separation.
Choose from a wide range of these jaw coupling hubs, available in both unbored and bored variants on Raptor Supplies. The bored variants are offered in bore sizes ranging from 1/8 to 4 inches.

Uses

Jaw coupling hubs are ideal for linking two shafts when used in conjunction with elastomeric inserts or spiders to form couplings. These jaw coupling hubs are used in a wide range of motion control (servo) applications, such as conveyors, escalators, motor vehicles, forestry, agricultural & mining equipment in robotics, automobile, aeronautics and space industries.

Features

  • Jaw coupling hubs in conjunction with spiders form jaw couplings and are used to transmit rotational power from one shaft to another.
  • They are equipped with an optional bore or a hole at the centre of the hub for ease of mounting on the shafts. Users can identify the bore size or bore diameter of a hub for selecting a correct sized jaw coupling hub for their use.
  • These hub bores may also have keyway slots to fit a key and prevent slipping of the hub on the rotating shaft. Keyway size indicates the height and width of the keyway slot to fit in the right sized key.
  • The jaw coupling hubs have an effective length through the bore to help them slide-fit on the shaft & the optional key.
  • These hubs handle the torque from the driving shaft and pass it onto a driven shaft while handling shocks, vibrations & angular misalignment. Torque refers to the applied force causing rotational motion. In imperial units, torque is expressed as inch-pounds (in.-lbs.) whereas, in metrics, it is expressed as Newton-meters (Nm).
  • They have diverse types of designs, constructions and bore tolerances for handling a wide range of rotational speeds (maximum speed).
  • These jaw coupling hubs feature fail-safe mechanism for continuing the operation up to a certain time, in case the shock-absorbing spider inserts wear down or fail to interlock.
  • They provide highly reliable service without any metal to metal contact to prevent regular wear & tear.
  • These jaw coupling hubs are resistant to oil, dirt, moisture & grease for ensuring long term operation.

Working Mechanism

A jaw coupling is made of three parts: two metallic hubs (jaw coupling hub) and an elastomer insert / element or spider. The spider has many lobes to fit the jaws of hubs alternatively for a tight press fit. Once the machinery starts running & the driving shaft starts rotating, the hub jaws attached to the driving shaft push towards the driven hub jaws and thereby towards the stationary shaft.
The jaws being locked together leads to torque transfer and rotation of the stationary shaft. The jaw coupling torque is then transmitted through the elastomer / spider lobes compressed between the hub jaws. These elastomeric spider legs act as coupling absorbers and help in cushioning the force between the driving & driven jaws. They absorb the vibration and shock from torque transfer and consequently protect the surrounding components from getting damaged.

Standards and Approvals

  • Lovejoy jaw coupling hubs meet the ANSI/AGMA 9002-B04 or 9112-A04 and ISO 9001:2008 industry standards for superior performance of the hubs.

Frequently Asked Questions

How to install a jaw coupling hub?

Users can install jaw coupling hubs by following these steps:
  • The customers should first buy a spider according to the selected hub (preferably from the same corresponding series) having the same specifications & parameters.
  • After purchase, they should ensure that each component is free from contaminants, defects or cracks and match the shaft diameter to the bore size of the hubs.
  • Before starting the coupling installation, users should ensure that the machinery is disconnected from all power sources. They should also not install it on unstable or moving equipment.
  • The hubs having key slots should be fitted with the keys and slid fit into shafts for preventing slipping during shaft rotation. The keyless hubs can be attached directly to shafts using set screws.
  • The users should insert a spider into a hub while ensuring that the spider opening is large enough to fit both the shaft & the optional key. Selected jaw coupling hubs can be overhung slightly or be moved back on the shafts for adjusting according to misalignments in shaft separation.
  • Then, the second hub is brought near the first hub while keeping the guidelines in mind, such as the gap between hub faces.
  • Users should check the set screw tightness & alignment before testing to prevent possible misalignment.
  • Now the coupling is ready for operation, users should remove any material or tool away from the shaft and coupler. The equipment is ready to start up and test.

What is the difference between rigid and flexible jaw coupling?

Rigid couplings offer a rigid connection between two shafts that are firmly connected. They transfer torque smoothly throughout the system. These rigid couplings can't handle misalignment and shocks. Flexible couplings like jaw coupling hubs provide flexible connections and hence, can withstand shocks & misalignment up to a certain extent. However, there is a chance of some losses during torque transfer while using flexible jaw coupling.

What are some common mistakes the users make while selecting a jaw coupling hub?

Some common mistakes users make while selecting jaw coupling hubs are:
  • Failing to check maximum bore capacity: Users should always check the shaft size of the driving equipment before purchasing a jaw coupling.
  • Using same size couplings everywhere: Using the one-size-fits-all approach may seem like a good idea to prevent downtime. But an oversized or undersized jaw coupling may cause malfunctioning in motors and failed couplings.
  • Ignoring heat and chemical compatibility: Since the jaw couplings require purchasing of both hubs and spiders, the customers should take note that both the coupling hub & spider materials are compatible with the required environments.
  • Overlooking space restrictions: Users should make sure that the selected couplings according to required torque applications can fit the provided space. High torque applications require either a large diameter coupling to handle high torque or coupling with different designs & high torque density.

How to choose the right jaw coupling hub?

Customers can choose the right jaw coupling hubs for their needs according to the following points:
  • Determining the usage.
  • Choosing the material considering the intended application environment.
  • Selecting the coupling on the basis of torque, speed, bore size and other factors.
  • Jaw coupling hub types are based on usage and their ability to handle the degree of movement or rotation. For example, curved jaw coupling hubs (Lovejoy CJ Series) transfer high torque and can handle some degree of rotation (backlash) due to their curved jaw design.

What is the difference between keyway and keyless jaw coupling hubs?

Selected models of jaw coupling hubs feature a cutout slot in the mating part (hub) of the couplings, known as keyways. These slots or keyways fit in the keys or a separate mechanical attachment on the shafts or other mated tools. The use of "Keys" leads to improved torque & prevents slipping. It also results in reduced losses due to vibrations & backlash (degree of free movement between two rotating, mating parts).
However, some applications do not require keys, as keyless jaw coupling hubs use only set screw holding power to transfer torque. Keyless hubs are ideal for applications that cause no damages or injuries even if the shafts slip. Keyed jaw coupling hubs concentrate the stresses around the key or key slot, causing maintenance issues and efficiency losses. Keyless hubs distribute the load & hence require less maintenance.

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