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

SURE MOTION -

Jaw/ Spider Aluminum Clamp-Style Drive Coupling Hubs

Style	Model	Price (inc. GST)
A	DC-JAC30-06	SGD 66.13
B	DC-JAC40-10	SGD 77.39
C	DC-JAC65-20	SGD 146.34
D	DC-JAC55-22M	SGD 90.05
E	DC-JAC55-19M	SGD 90.05
F	DC-JAC55-14	SGD 90.05
G	DC-JAC55-12	SGD 90.05
H	DC-JAC55-10	SGD 90.05
I	DC-JAC40-16M	SGD 77.39
J	DC-JAC40-14M	SGD 77.39
K	DC-JAC40-12M	SGD 77.39
L	DC-JAC40-12	SGD 77.39
M	DC-JAC40-10M	SGD 77.39
N	DC-JAC40-08M	SGD 77.39
O	DC-JAC14-03	SGD 35.18
P	DC-JAC40-08	SGD 77.39
Q	DC-JAC40-06	SGD 77.39
R	DC-JAC30-12M	SGD 66.13
S	DC-JAC30-10M	SGD 66.13
T	DC-JAC30-08M	SGD 66.13
U	DC-JAC30-08	SGD 66.13
V	DC-JAC30-05	SGD 66.13
W	DC-JAC20-05	SGD 45.03
X	DC-JAC20-04	SGD 45.03
Y	DC-JAC14-06M	SGD 35.18

SUNG IL MACHINERY -

SJC Series Drive Coupling Hubs

Style	Model	Price (inc. GST)
A	SJC-55C-15.875	SGD 81.61	RFQ
B	SJC-100C-30	SGD 292.67	RFQ
C	SJC-100C-55	SGD 292.67	RFQ
D	SJC-100C-50	SGD 292.67	RFQ
E	SJC-100C-45	SGD 292.67	RFQ
F	SJC-100C-40	SGD 292.67	RFQ
G	SJC-100C-35	SGD 292.67	RFQ
H	SJC-100C-32	SGD 292.67	RFQ
I	SJCB-40C-9.525	SGD 52.06	RFQ
J	SJC-14C-3	SGD 29.55	RFQ
K	SJCB-40C-8	SGD 52.06	RFQ
L	SJCB-40C-22	SGD 52.06	RFQ
M	SJCB-40C-19	SGD 52.06	RFQ
N	SJCB-40C-16	SGD 52.06	RFQ
O	SJCB-40C-15.875	SGD 52.06	RFQ
P	SJCB-40C-14	SGD 52.06	RFQ
Q	SJC-100C-60	SGD 292.67	RFQ
R	SJC-14C-4	SGD 29.55	RFQ
S	SJCB-40C-12	SGD 52.06	RFQ
T	SJC-20C-7.93	SGD 32.36	RFQ
U	SJC-25C-6	SGD 35.18	RFQ
V	SJC-25C-5	SGD 35.18	RFQ
W	SJC-25C-14	SGD 35.18	RFQ
X	SJC-25C-10	SGD 35.18	RFQ
Y	SJC-20C-9.525	SGD 32.36	RFQ

LOVEJOY -

CJ Series Hubs Spline Bore

Style	Model	Max. Speed	Bore Type	Color	Max. Torque	Min. Bore	Outside Dia.	Overall Coupling Length	Screw Thread Dia.	Price (inc. GST)
A	68514476505	6000 rpm	Special Spline Bore	Gray	4690 in.-lbs.	1.02"	3.74"	4.96"	3/8"-16	SGD 386.54	RFQ
B	68514476266	7100 rpm	Bored	Metallic	3360 in.-lbs.	1.380"	3.150"	4.490"	1/2"-13	SGD 306.26	RFQ

RULAND MANUFACTURING -

JC Series Jaw Coupling Hubs, 8000 RPM Speed
Ruland Manufacturing jaw coupling hubs are suitable for transmitting torque in connecting shafts while dampening vibrations & accommodating misalignment in servo-driven applications. These three-piece units feature a balanced design including two jaw coupling hubs and a jaw coupling spider. The jaws press fit onto the spider's limbs to allow operating with zero backlash while absorbing shock loads; thereby protecting the inner components of the motor from damage. They are available in lengths ranging from 7.6 to 28.7 mm.

Style	Model	Bore Dia.	Outside Dia.	Overall Length	Size	Price (inc. GST)
A	JC16-8-A	0.5"	1"	11.9mm	JC16	SGD 76.15
B	JC36-8-A	0.5"	2.25"	28.7mm	JC36	SGD 300.08
B	JC26-8-A	0.5"	1.625"	18mm	JC26	SGD 136.88
A	JC10-4-A	0.25"	0.59"	7.6mm	JC10	SGD 52.45
A	JC12-4-A	0.25"	0.75"	9.8mm	JC12	SGD 58.35
A	JC16-4-A	0.25"	1"	11.9mm	JC16	SGD 75.63
B	JC36-12-A	0.75"	2.25"	28.7mm	JC36	SGD 298.59
B	JC26-12-A	0.75"	1.625"	18mm	JC26	SGD 136.84
A	JC10-2-A	0.125"	0.59"	7.6mm	JC10	SGD 61.12
A	JC10-3-A	0.188"	0.59"	7.6mm	JC10	SGD 57.66
A	JC12-3-A	0.188"	0.75"	9.8mm	JC12	SGD 62.59
A	JC16-5-A	0.313"	1"	11.9mm	JC16	SGD 76.15
A	JC12-5-A	0.313"	0.75"	9.8mm	JC12	SGD 62.47
A	JC16-6-A	0.375"	1"	11.9mm	JC16	SGD 76.15
B	JC26-6-A	0.375"	1.625"	18mm	JC26	SGD 136.63
B	JC36-10-A	0.625"	2.25"	28.7mm	JC36	SGD 318.61
B	JC26-10-A	0.625"	1.625"	18mm	JC26	SGD 137.39
B	JC36-14-A	0.875"	2.25"	28.7mm	JC36	SGD 300.08
C	JC32-16-A	1"	2"	20.8mm	JC32	SGD 210.64
B	JC36-16-A	1"	2.25"	28.7mm	JC36	SGD 300.08
C	JC36-20-A	1.25"	2.25"	28.7mm	JC36	SGD 300.08
C	JC36-18-A	1.125"	2.25"	28.7mm	JC36	SGD 300.08
C	JC32-8-A	1/2"	2"	20.8mm	JC32	SGD 223.13
D	JC21-8-A	1/2"	5/16"	15mm	JC21	SGD 109.35
C	JC32-12-A	3/4"	2"	20.8mm	JC32	SGD 224.08

LOVEJOY -

CJ Series Hubs Nodular Iron, B Style, Metric Bores

Style	Model	Bore Size	Bore Type	Price (inc. GST)
A	68514476594	65mm	Bored	SGD 1987.38	RFQ
A	68514472347	NA	Unbored	-	RFQ

RULAND MANUFACTURING -

JCC Series Jaw Coupling Hubs
Ruland Manufacturing JCC Series jaw coupling hubs transmit torque and rotatory action between two shafts, as well as accommodate shaft misalignment in motion control (servo) applications. These coupling hubs feature a three-piece assembly with a balanced design consisting of two jaw hubs and a spider to counter the misalignment between the connecting shafts and dampen shocks & vibrations. Choose from an array of these aluminium jaw coupling hubs available in 11.9, 15.0, 18.0, 20.8 and 28.7 mm length variants

Style	Model	Bore Dia.	Keyway	Keyway Size	Outside Dia.	Overall Length	Size	Price (inc. GST)
A	JCC16-8-A	0.5"	No	1/8" x 1/16"	1"	11.9mm	JCC16	SGD 99.79
B	JCC26-8-A	0.5"	No	1/8" x 1/16"	1.625"	18mm	JCC26	SGD 169.77
B	JCC36-8-A	0.5"	No	1/8" x 1/16"	2.25"	28.7mm	JCC36	SGD 371.86
B	JCC26-12-A	0.75"	No	3/16" x 3/32"	1.625"	18mm	JCC26	SGD 172.99
B	JCC36-12-A	0.75"	No	3/16" x 3/32"	2.25"	28.7mm	JCC36	SGD 370.47
C	JCC16-6-A	0.375"	No	3/32" x 3/64"	1"	11.9mm	JCC16	SGD 100.03
B	JCC26-6-A	0.375"	No	3/32" x 3/64"	1.625"	18mm	JCC26	SGD 172.29
B	JCC26-10-A	0.625"	No	3/16" x 3/32"	1.625"	18mm	JCC26	SGD 169.72
B	JCC36-10-A	0.625"	No	3/16" x 3/32"	2.25"	28.7mm	JCC36	SGD 371.86
B	JCC36-14-A	0.875"	No	3/16" x 3/32"	2.25"	28.7mm	JCC36	SGD 351.33
B	JCC32-16-A	1"	Yes	1/4" x 1/8"	2"	20.8mm	JCC32	SGD 282.32
B	JCC36-16-A	1"	No	1/4" x 1/8"	2.25"	28.7mm	JCC36	SGD 361.45
B	JCC36-20-A	1.25"	Yes	1/4" x 1/8"	2.25"	28.7mm	JCC36	SGD 361.45
B	JCC36-18-A	1.125"	No	1/4" x 1/8"	2.25"	28.7mm	JCC36	SGD 350.23
B	JCC32-8-A	1/2"	Yes	1/8" x 1/16"	2"	20.8mm	JCC32	SGD 265.91
D	JCC21-8-A	1/2"	Yes	1/8" x 1/16"	5/16"	15mm	JCC21	SGD 136.63
B	JCC32-12-A	3/4"	Yes	3/16" x 3/32"	2"	20.8mm	JCC32	SGD 258.87
D	JCC21-6-A	3/8"	Yes	3/32" x 3/64"	5/16"	15mm	JCC21	SGD 146.17
B	JCC32-10-A	5/8"	Yes	3/16" x 3/32"	2"	20.8mm	JCC32	SGD 265.91
D	JCC21-10-A	5/8"	Yes	3/16" x 3/32"	5/16"	15mm	JCC21	SGD 137.72
B	JCC32-14-A	7/8"	Yes	3/16" x 3/32"	2"	20.8mm	JCC32	SGD 265.56

RULAND MANUFACTURING -

JS Series Jaw Coupling Hub
Ruland Manufacturing JS Series curved jaw coupling hubs are designed for transmitting torque and rotatory action between two shafts, to accommodate shaft misalignment in servo motor applications. These jaw coupling hubs feature a three-piece assembly including two hubs and a spider (available separately), for smooth interaction between components. They have a single beam in the centre and grooves on outer edges to counter misalignment between the connecting shafts and dampen shocks & vibrations. Choose from a wide range of these aluminium jaw coupling hubs, available in JS10, JS12, JS16, JS21, JS26, JS32 and JS36 coupling sizes.
Raptor Supplies also offers Ruland Manufacturing JSC Series jaw coupling hubs, supplied with a keyway for fitting a hub over the shaft.

Style	Model	Bore Dia.	Outside Dia.	Overall Length	Size	Price (inc. GST)
A	JS32-16-A	1"	2"	20.8mm	JS32	SGD 206.59
A	JS36-16-A	1"	2.25"	28.7mm	JS36	SGD 290.68
A	JS36-20-A	1.25"	2.25"	28.7mm	JS36	SGD 291.59
A	JS36-18-A	1.125"	2.25"	28.7mm	JS36	SGD 290.68
A	JS36-8-A	1/2"	2.25"	28.7mm	JS36	SGD 290.68
B	JS21-8-A	1/2"	5/16"	15mm	JS21	SGD 96.27
A	JS32-8-A	1/2"	2"	20.8mm	JS32	SGD 207.19
B	JS16-8-A	1/2"	1"	11.9mm	JS16	SGD 68.39
A	JS26-8-A	1/2"	1.625"	18mm	JS26	SGD 115.83
B	JS10-4-A	1/4"	19/32"	7.6mm	JS10	SGD 49.36
B	JS12-4-A	1/4"	3/4"	9.8mm	JS12	SGD 55.24
B	JS16-4-A	1/4"	1"	11.9mm	JS16	SGD 70.75
B	JS10-2-A	1/8"	19/32"	7.6mm	JS10	SGD 49.36
A	JS26-12-A	3/4"	1.625"	18mm	JS26	SGD 120.67
A	JS32-12-A	3/4"	2"	20.8mm	JS32	SGD 195.25
A	JS36-12-A	3/4"	2.25"	28.7mm	JS36	SGD 290.68
B	JS16-6-A	3/8"	1"	11.9mm	JS16	SGD 70.46
B	JS21-6-A	3/8"	5/16"	15mm	JS21	SGD 101.86
A	JS26-6-A	3/8"	1.625"	18mm	JS26	SGD 107.75
B	JS10-3-A	3/16"	19/32"	7.6mm	JS10	SGD 49.45
B	JS12-3-A	3/16"	3/4"	9.8mm	JS12	SGD 55.24
A	JS32-10-A	5/8"	2"	20.8mm	JS32	SGD 207.19
A	JS26-10-A	5/8"	1.625"	18mm	JS26	SGD 119.80
A	JS36-10-A	5/8"	2.25"	28.7mm	JS36	SGD 291.59
B	JS21-10-A	5/8"	5/16"	15mm	JS21	SGD 101.86

RULAND MANUFACTURING -

JSC Series Jaw Coupling Hubs
Ruland Manufacturing JSC Series curved jaw coupling hubs are designed for transmitting torque and rotatory action between two shafts, to accommodate shaft misalignment in servo motor applications. These jaw coupling hubs feature a three-piece assembly consisting of two jaw hubs and a spider (available separately), for smooth interaction between components. They feature aluminium construction, a single beam in the centre and grooves on outer edges to counter misalignment between the connecting shafts, and dampen shocks & vibrations. They are supplied with a keyway for tightening or loosening coupling around the shaft. Choose from a wide range of these aluminium jaw coupling hubs, available in JS16, JS21, JS32 and JS36 coupling sizes.
Raptor Supplies also offers Ruland Manufacturing JS Series jaw coupling hubs, available in JS10, JS12, JS16, JS21, JS26, JS32 and JS36 coupling sizes.

Style	Model	Bore Dia.	Keyway Size	Outside Dia.	Overall Length	Size	Price (inc. GST)
A	JSC36-16-A	1"	1/4" x 1/8"	2.25"	28.7mm	JSC36	SGD 320.94
A	JSC32-16-A	1"	1/4" x 1/8"	2"	20.8mm	JSC32	SGD 250.18
A	JSC36-20-A	1.25"	1/4" x 1/8"	2.25"	28.7mm	JSC36	SGD 343.09
A	JSC36-18-A	1.125"	1/4" x 1/8"	2.25"	28.7mm	JSC36	SGD 343.09
B	JSC16-8-A	1/2"	1/8" x 1/16"	1"	11.9mm	JSC16	SGD 95.85
B	JSC21-8-A	1/2"	1/8" x 1/16"	5/16"	15mm	JSC21	SGD 127.06
A	JSC36-8-A	1/2"	1/8" x 1/16"	2.25"	28.7mm	JSC36	SGD 343.09
A	JSC32-8-A	1/2"	1/8" x 1/16"	2"	20.8mm	JSC32	SGD 249.33
A	JSC26-8-A	1/2"	1/8" x 1/16"	1.625"	18mm	JSC26	SGD 156.46
A	JSC36-12-A	3/4"	3/16" x 3/32"	2.25"	28.7mm	JSC36	SGD 343.09
A	JSC32-12-A	3/4"	3/16" x 3/32"	2"	20.8mm	JSC32	SGD 249.33
A	JSC26-12-A	3/4"	3/16" x 3/32"	1.625"	18mm	JSC26	SGD 156.46
A	JSC26-6-A	3/8"	3/32" x 3/64"	1.625"	18mm	JSC26	SGD 156.46
B	JSC21-6-A	3/8"	3/32" x 3/64"	5/16"	15mm	JSC21	SGD 130.98
B	JSC16-6-A	3/8"	3/32" x 3/64"	1"	11.9mm	JSC16	SGD 95.98
A	JSC32-10-A	5/8"	3/16" x 3/32"	2"	20.8mm	JSC32	SGD 250.18
A	JSC36-10-A	5/8"	3/16" x 3/32"	2.25"	28.7mm	JSC36	SGD 343.09
A	JSC26-10-A	5/8"	3/16" x 3/32"	1.625"	18mm	JSC26	SGD 155.96
B	JSC21-10-A	5/8"	3/16" x 3/32"	5/16"	15mm	JSC21	SGD 125.68
A	JSC32-14-A	7/8"	3/16" x 3/32"	2"	20.8mm	JSC32	SGD 250.67
A	JSC36-14-A	7/8"	3/16" x 3/32"	2.25"	28.7mm	JSC36	SGD 341.83

RULAND MANUFACTURING -

MJCC Series Jaw Coupling Hubs
Ruland Manufacturing MJCC Series jaw coupling hubs are designed to connect two rotating shafts for transmitting torque and rotatory action while absorbing shocks, correcting misalignment (angular, parallel & axial) and ending float. They are ideal for fans, pumps, compressors, motors, mixers and conveyors. These curved jaw coupling hubs feature lightweight aluminium construction for low inertia and a balanced design for high torque ratings & reduced vibrations. The couplings feature bores & grooves for tight connection & accurate power delivery, and a fail-safe mechanism in case spider inserts fail to interlock. They are tested beyond DIN 912 12.9 standards for reliability. Choose from a wide range of these curved jaw coupling hubs, available in bore sizes ranging from 8 to 30 mm on Raptor Supplies.

Style	Model	Bore Dia.	Keyway	Keyway Size	Outside Dia.	Overall Length	Size	Price (inc. GST)
A	MJCC25-8-A	8mm	Yes	2 mm x 1 mm	25.4mm	11.9mm	MJCC25	SGD 100.03
A	MJCC33-8-A	8mm	Yes	2 mm x 1 mm	33.3mm	15mm	MJCC33	SGD 146.17
B	MJCC25-10-A	10mm	No	3 mm x 1.4 mm	1"	35.3mm	MJCC25	SGD 99.79
A	MJCC33-10-A	10mm	Yes	3 mm x 1.4 mm	33.3mm	15mm	MJCC33	SGD 146.73
C	MJCC41-10-A	10mm	No	3 mm x 1.4 mm	1.625"	53mm	MJCC41	SGD 172.29
A	MJCC25-11-A	11mm	Yes	4 mm x 1.8 mm	25.4mm	11.9mm	MJCC25	SGD 106.35
C	MJCC41-11-A	11mm	Yes	4 mm x 1.8 mm	41.3mm	18mm	MJCC41	SGD 183.43
A	MJCC33-11-A	11mm	Yes	4 mm x 1.8 mm	33.3mm	15mm	MJCC33	SGD 146.17
C	MJCC41-12-A	12mm	No	4 mm x 1.8 mm	1.625"	53mm	MJCC41	SGD 178.38
A	MJCC33-12-A	12mm	Yes	4 mm x 1.8 mm	33.3mm	15mm	MJCC33	SGD 138.43
C	MJCC51-12-A	12mm	Yes	4 mm x 1.8 mm	50.8mm	20.8mm	MJCC51	SGD 282.32
B	MJCC25-12-A	12mm	No	4 mm x 1.8 mm	1"	35.3mm	MJCC25	SGD 104.13
A	MJCC33-14-A	14mm	Yes	5 mm x 2.3 mm	33.3mm	15mm	MJCC33	SGD 144.10
C	MJCC57-14-A	14mm	Yes	5 mm x 2.3 mm	57.2mm	28.7mm	MJCC57	SGD 370.47
C	MJCC41-14-A	14mm	No	5 mm x 2.3 mm	1.625"	53mm	MJCC41	SGD 176.86
C	MJCC51-14-A	14mm	Yes	5 mm x 2.3 mm	50.8mm	20.8mm	MJCC51	SGD 282.32
C	MJCC57-15-A	15mm	Yes	5 mm x 2.3 mm	57.2mm	28.7mm	MJCC57	SGD 350.23
C	MJCC51-15-A	15mm	Yes	5 mm x 2.3 mm	50.8mm	20.8mm	MJCC51	SGD 290.99
C	MJCC41-15-A	15mm	Yes	5 mm x 2.3 mm	41.3mm	18mm	MJCC41	SGD 187.81
A	MJCC33-15-A	15mm	Yes	5 mm x 2.3 mm	33.3mm	15mm	MJCC33	SGD 145.03
C	MJCC41-16-A	16mm	No	5 mm x 2.3 mm	1.625"	53mm	MJCC41	SGD 172.29
A	MJCC33-16-A	16mm	Yes	5 mm x 2.3 mm	33.3mm	15mm	MJCC33	SGD 146.73
C	MJCC57-16-A	16mm	No	5 mm x 2.3 mm	2.25"	80mm	MJCC57	SGD 348.33
C	MJCC51-16-A	16mm	Yes	5 mm x 2.3 mm	50.8mm	20.8mm	MJCC51	SGD 282.32
C	MJCC57-17-A	17mm	Yes	5 mm x 2.3 mm	57.2mm	28.7mm	MJCC57	SGD 416.40

RULAND MANUFACTURING -

MJS Series Jaw Coupling Hubs
Ruland Manufacturing MJS Series jaw coupling hubs are designed to connect two rotating shafts for transmitting torque and rotatory action while absorbing shocks, correcting misalignment (angular, parallel & axial) and ending float. They are ideal for fans, pumps, compressors, motors, mixers and conveyors. These curved jaw coupling hubs feature lightweight aluminium construction for low inertia and a balanced design for high torque ratings & reduced vibration. The couplings feature bores & grooves for tight connection & accurate power delivery, and a fail-safe mechanism in case spider inserts fail to interlock. Choose from a wide range of these curved jaw coupling hubs, available in bore sizes ranging from 3 to 30 mm.
Raptor Supplies also offers Ruland Manufacturing MJSC Series jaw coupling hubs, supplied with a keyway for adjusting hub fitting over a shaft.

Style	Model	Bore Dia.	Outside Dia.	Overall Length	Size	Price (inc. GST)
A	MJS15-3-A	3mm	15.0mm	7.6mm	MJS15	SGD 49.03
A	MJS19-4-A	4mm	19.1mm	9.8mm	MJS19	SGD 54.85
A	MJS15-4-A	4mm	15.0mm	7.6mm	MJS15	SGD 49.03
A	MJS15-5-A	5mm	15.0mm	7.6mm	MJS15	SGD 49.22
A	MJS19-5-A	5mm	19.1mm	9.8mm	MJS19	SGD 54.85
A	MJS25-6-A	6mm	25.4mm	11.9mm	MJS25	SGD 69.96
A	MJS15-6-A	6mm	15.0mm	7.6mm	MJS15	SGD 49.03
A	MJS19-6-A	6mm	19.1mm	9.8mm	MJS19	SGD 51.85
A	MJS25-8-A	8mm	25.4mm	11.9mm	MJS25	SGD 68.28
A	MJS33-8-A	8mm	33.3mm	15mm	MJS33	SGD 101.15
A	MJS19-8-A	8mm	19.1mm	9.8mm	MJS19	SGD 51.85
A	MJS33-10-A	10mm	33.3mm	15mm	MJS33	SGD 101.15
B	MJS41-10-A	10mm	41.3mm	18mm	MJS41	SGD 119.88
A	MJS25-10-A	10mm	25.4mm	11.9mm	MJS25	SGD 70.17
A	MJS25-12-A	12mm	25.4mm	11.9mm	MJS25	SGD 68.51
A	MJS33-12-A	12mm	33.3mm	15mm	MJS33	SGD 101.15
B	MJS41-12-A	12mm	41.3mm	18mm	MJS41	SGD 119.51
B	MJS51-12-A	12mm	50.8mm	20.8mm	MJS51	SGD 205.84
B	MJS51-14-A	14mm	50.8mm	20.8mm	MJS51	SGD 204.04
A	MJS33-14-A	14mm	33.3mm	15mm	MJS33	SGD 95.62
B	MJS41-14-A	14mm	41.3mm	18mm	MJS41	SGD 119.88
B	MJS57-14-A	14mm	57.2mm	28.7mm	MJS57	SGD 289.67
A	MJS33-15-A	15mm	33.3mm	15mm	MJS33	SGD 101.15
B	MJS41-15-A	15mm	41.3mm	18mm	MJS41	SGD 119.51
B	MJS57-16-A	16mm	57.2mm	28.7mm	MJS57	SGD 289.67

RULAND MANUFACTURING -

MJSC Series Jaw Coupling Hubs
Ruland Manufacturing MJSC Series jaw coupling hubs are designed to connect two rotating shafts for transmitting torque and rotatory action while absorbing shocks, correcting misalignment (angular, parallel & axial) and ending float. They are ideal for fans, pumps, compressors, motors, mixers and conveyors. These curved jaw coupling hubs feature lightweight aluminium construction for low inertia and a balanced design for high torque ratings & reduced vibration. The couplings feature bores & grooves for tight connection & accurate power delivery, and a fail-safe mechanism in case spider inserts fail to interlock. They are supplied with a keyway to adjust the fitting of hubs on the shaft. Choose from a wide range of these curved jaw coupling hubs, available in bore sizes ranging from 8 to 30 mm.
Raptor Supplies also offers Ruland Manufacturing MJS Series jaw coupling hubs, available in 3, 4, 5 and 6 mm bore sizes.

Style	Model	Bore Dia.	Keyway Size	Outside Dia.	Overall Length	Size	Price (inc. GST)
A	MJSC33-8-A	8mm	2 mm x 1 mm	33.3mm	15mm	MJSC33	SGD 130.98
A	MJSC25-8-A	8mm	2 mm x 1 mm	25.4mm	11.9mm	MJSC25	SGD 97.70
A	MJSC25-10-A	10mm	3 mm x 1.4 mm	25.4mm	11.9mm	MJSC25	SGD 95.56
A	MJSC33-10-A	10mm	3 mm x 1.4 mm	33.3mm	15mm	MJSC33	SGD 130.98
B	MJSC41-10-A	10mm	3 mm x 1.4 mm	41.3mm	18mm	MJSC41	SGD 155.96
A	MJSC33-12-A	12mm	4 mm x 1.8 mm	33.3mm	15mm	MJSC33	SGD 130.98
B	MJSC41-12-A	12mm	4 mm x 1.8 mm	41.3mm	18mm	MJSC41	SGD 156.77
B	MJSC51-12-A	12mm	4 mm x 1.8 mm	50.8mm	20.8mm	MJSC51	SGD 249.33
A	MJSC25-12-A	12mm	4 mm x 1.8 mm	25.4mm	11.9mm	MJSC25	SGD 95.56
B	MJSC51-14-A	14mm	5 mm x 2.3 mm	50.8mm	20.8mm	MJSC51	SGD 250.18
A	MJSC33-14-A	14mm	5 mm x 2.3 mm	33.3mm	15mm	MJSC33	SGD 119.64
B	MJSC41-14-A	14mm	5 mm x 2.3 mm	41.3mm	18mm	MJSC41	SGD 155.96
B	MJSC57-14-A	14mm	5 mm x 2.3 mm	57.2mm	28.7mm	MJSC57	SGD 341.83
A	MJSC33-15-A	15mm	5 mm x 2.3 mm	33.3mm	15mm	MJSC33	SGD 130.60
B	MJSC41-15-A	15mm	5 mm x 2.3 mm	41.3mm	18mm	MJSC41	SGD 175.09
B	MJSC57-16-A	16mm	5 mm x 2.3 mm	57.2mm	28.7mm	MJSC57	SGD 343.09
B	MJSC51-16-A	16mm	5 mm x 2.3 mm	50.8mm	20.8mm	MJSC51	SGD 250.18
A	MJSC33-16-A	16mm	5 mm x 2.3 mm	33.3mm	15mm	MJSC33	SGD 130.98
B	MJSC41-16-A	16mm	5 mm x 2.3 mm	41.3mm	18mm	MJSC41	SGD 156.46
B	MJSC41-17-A	17mm	5 mm x 2.3 mm	41.3mm	18mm	MJSC41	SGD 175.09
B	MJSC57-19-A	19mm	6 mm x 2.8 mm	57.2mm	28.7mm	MJSC57	SGD 384.09
B	MJSC41-19-A	19mm	6 mm x 2.8 mm	41.3mm	18mm	MJSC41	SGD 175.09
B	MJSC41-20-A	20mm	6 mm x 2.8 mm	41.3mm	18mm	MJSC41	SGD 154.53
B	MJSC51-20-A	20mm	6 mm x 2.8 mm	50.8mm	20.8mm	MJSC51	SGD 249.33
B	MJSC57-20-A	20mm	6 mm x 2.8 mm	57.2mm	28.7mm	MJSC57	SGD 343.09

BOSTON GEAR -

Jaw Coupling Hubs

Style	Model	Bore Dia.	Keyway Size	Outside Dia.	Overall Length	Size	Price (inc. GST)
A	SSFC20-1	1"	1/4" x 1/8"	2"	3.69"	SSFC20	SGD 341.48
A	SSFC30 1	1"	1/4" x 1/8"	3"	5.470"	SSFC30	SGD 753.14
A	SSFC25 1	1"	1/4" x 1/8"	2.5"	4.13"	SSFC25	SGD 402.04
A	SSFC30 1 1/4	1.25"	1/4" x 1/8"	3"	5.470"	SSFC30	SGD 753.14
A	SSFC25 1 1/4	1.25"	1/4" x 1/8"	2.5"	4.13"	SSFC25	SGD 402.04
A	SSFC30 1 3/8	1.375"	5/16" x 5/32"	3"	5.470"	SSFC30	SGD 753.14
A	SSFC12 1/2	1/2"	1/8" x 1/16"	1.25"	2.31"	SSFC12	SGD 206.82
A	SSFC15 1/2	1/2"	1/8" x 1/16"	1.5"	2.75"	SSFC15	SGD 275.18
A	SSFC15 3/4	3/4"	3/16" x 3/32"	1.5"	2.75"	SSFC15	SGD 275.18
A	SSFC20 3/4	3/4"	3/16" x 3/32"	2"	3.69"	SSFC20	SGD 341.48
A	SSFC25 3/4	3/4"	3/16" x 3/32"	2.5"	4.13"	SSFC25	SGD 402.04
A	SSFC12 3/8	3/8"	3/32" x 3/64"	1.25"	2.31"	SSFC12	SGD 206.82
A	SSFC15 5/8	5/8"	3/16" x 3/32"	1.5"	2.75"	SSFC15	SGD 275.18
A	SSFC20 5/8	5/8"	3/16" x 3/32"	2"	3.69"	SSFC20	SGD 341.48
A	SSFC20 7/8	7/8"	3/16" x 3/32"	2"	3.69"	SSFC20	SGD 341.48
B	SSFC38-SOLID	Solid	None	3.75"	6.31"	SSFC38	SGD 1657.83
B	SSFC12 SOLID	Solid	None	1.25"	2.31"	SSFC12	SGD 143.95
B	SSFC30 SOLID	Solid	None	3"	5.470"	SSFC30	SGD 690.96
B	SSFC25 SOLID	Solid	None	2.5"	4.13"	SSFC25	SGD 339.16
B	SSFC20 SOLID	Solid	None	2"	3.69"	SSFC20	SGD 278.80
B	SSFC15 SOLID	Solid	None	1.5"	2.75"	SSFC15	SGD 212.38
B	SSFC45-SOLID	Solid	None	4.5"	7.19"	SSFC45	SGD 3148.86

RULAND MANUFACTURING -

MJC Series Jaw Coupling Hubs
Ruland Manufacturing MJC Series jaw coupling hubs are designed to connect two rotating shafts for transmitting torque and rotatory action while absorbing shocks, correcting misalignment and ending float. They are ideal for fans, pumps, compressors, motors, mixers and conveyors. These curved jaw coupling hubs feature lightweight aluminium construction for low inertia and a balanced design for high torque ratings. The couplings feature bores & grooves for tight connection & accurate power delivery, and a fail-safe mechanism in case spider inserts fail to interlock. Choose from a wide range of these curved jaw coupling hubs, available in 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 17, 19, 20, 25 and 30 mm bore sizes.

Style	Model	Bore Dia.	Outside Dia.	Overall Length	Size	Price (inc. GST)
A	MJC15-3-A	3mm	0.59"	21.8mm	MJC15	SGD 58.04
A	MJC19-4-A	4mm	0.75"	27.2mm	MJC19	SGD 63.07
A	MJC15-4-A	4mm	0.59"	21.8mm	MJC15	SGD 61.66
A	MJC15-5-A	5mm	0.59"	21.8mm	MJC15	SGD 61.41
A	MJC19-5-A	5mm	0.75"	27.2mm	MJC19	SGD 58.27
A	MJC15-6-A	6mm	0.59"	21.8mm	MJC15	SGD 61.66
A	MJC19-6-A	6mm	0.75"	27.2mm	MJC19	SGD 59.42
A	MJC25-6-A	6mm	1"	35.3mm	MJC25	SGD 76.65
B	MJC19-7-A	7mm	19.1mm	9.8mm	MJC19	SGD 63.07
B	MJC25-7-A	7mm	25.4mm	11.9mm	MJC25	SGD 82.67
A	MJC19-8-A	8mm	0.75"	27.2mm	MJC19	SGD 62.36
B	MJC33-8-A	8mm	33.3mm	15mm	MJC33	SGD 111.09
A	MJC25-8-A	8mm	1"	35.3mm	MJC25	SGD 76.69
B	MJC33-9-A	9mm	33.3mm	15mm	MJC33	SGD 117.96
B	MJC25-9-A	9mm	25.4mm	11.9mm	MJC25	SGD 82.67
B	MJC33-10-A	10mm	33.3mm	15mm	MJC33	SGD 117.85
C	MJC41-10-A	10mm	1.625"	53mm	MJC41	SGD 137.10
A	MJC25-10-A	10mm	1"	35.3mm	MJC25	SGD 76.19
C	MJC41-12-A	12mm	1.625"	53mm	MJC41	SGD 125.86
D	MJC51-12-A	12mm	50.8mm	20.8mm	MJC51	SGD 239.48
B	MJC33-12-A	12mm	33.3mm	15mm	MJC33	SGD 111.44
A	MJC25-12-A	12mm	1"	35.3mm	MJC25	SGD 76.58
D	MJC57-14-A	14mm	57.2mm	28.7mm	MJC57	SGD 320.72
C	MJC41-14-A	14mm	1.625"	53mm	MJC41	SGD 136.40
B	MJC33-14-A	14mm	33.3mm	15mm	MJC33	SGD 110.88

DAYTON -

Jaw Coupling Hubs
Dayton jaw coupling hubs are connected with drive shafts for handling heavy loads and providing safer power transmission, even in high temperature applications. These units feature sintered iron / steel construction that requires no lubrication and can protect against dirt, debris, grease, oil and moisture. The complete assembly requires two jaw hubs and a spider for creating a smooth interaction between the two components. They can counter the inevitable misalignment between the connecting shafts and dampen shocks & vibrations. Choose from an array of these jaw coupling hubs, available in lengths ranging from 26.68 to 77.80 mm.

Style	Model	Bore Dia.	Keyway	Keyway Size	Material	Outside Dia.	Overall Length	Size	Price (inc. GST)
A	29HY60	1"	Yes	1/4" x 1/8"	Steel	4.5"	77.8mm	L190	SGD 210.69
A	29HY90	1"	Yes	1/4" x 1/8"	Sintered Iron	2.125"	36.83mm	L095	SGD 36.22
A	29HY68	1"	Yes	1/4" x 1/8"	Sintered Iron	3-5/16"	63.18mm	L110	SGD 97.49
A	29HZ04	1"	Yes	1/4" x 1/8"	Sintered Iron	2-17/32"	52.05mm	L100	SGD 77.87
A	29HY72	1.5"	Yes	3/8" x 3/16"	Sintered Iron	3-5/16"	63.18mm	L110	SGD 112.22
A	29HY53	1.5"	Yes	3/8" x 3/16"	Sintered Iron	3.75"	68.25mm	L150	SGD 147.25
A	29HY64	1.5"	Yes	3/8" x 3/16"	Steel	4.5"	77.8mm	L190	SGD 220.52
A	29HY51	1.25"	Yes	1/4" x 1/8"	Sintered Iron	3.75"	68.25mm	L150	SGD 132.88
A	29HY92	1.25"	Yes	1/4" x 1/8"	Sintered Iron	2-17/32"	52.05mm	L100	SGD 75.47
A	29HY62	1.25"	Yes	1/4" x 1/8"	Steel	4.5"	77.8mm	L190	SGD 224.59
A	29HY70	1.25"	Yes	1/4" x 1/8"	Sintered Iron	3-5/16"	63.18mm	L110	SGD 112.22
A	29HY55	1.75"	Yes	3/8" x 3/16"	Sintered Iron	3.75"	68.25mm	L150	SGD 133.69
A	29HY61	1.125"	Yes	1/4" x 1/8"	Steel	4.5"	77.8mm	L190	SGD 217.00
A	29HY91	1.125"	Yes	1/4" x 1/8"	Sintered Iron	2-17/32"	52.05mm	L100	SGD 65.70
A	29HY50	1.125"	Yes	1/4" x 1/8"	Sintered Iron	3.75"	68.25mm	L150	SGD 132.88
A	29HY69	1.125"	Yes	1/4" x 1/8"	Sintered Iron	3-5/16"	63.18mm	L110	SGD 112.22
B	29HZ01	1.125"	Yes	1/4" x 1/8"	Sintered Iron	2.125"	36.83mm	L095	SGD 36.10
A	29HY93	1.375"	Yes	5/16" x 5/32"	Sintered Iron	2-17/32"	52.05mm	L100	SGD 65.74
A	29HY71	1.375"	Yes	5/16" x 5/32"	Sintered Iron	3-5/16"	63.18mm	L110	SGD 104.46
A	29HY63	1.375"	Yes	5/16" x 5/32"	Steel	4.5"	77.8mm	L190	SGD 220.52
A	29HY52	1.375"	Yes	5/16" x 5/32"	Sintered Iron	3.75"	68.25mm	L150	SGD 147.25
A	29HY73	1.625"	Yes	3/8" x 3/16"	Sintered Iron	3-5/16"	63.18mm	L110	SGD 104.15
A	29HY65	1.625"	Yes	3/8" x 3/16"	Steel	4.5"	77.8mm	L190	SGD 227.28
A	29HY54	1.625"	Yes	3/8" x 3/16"	Sintered Iron	3.75"	68.25mm	L150	SGD 128.76
A	29HY66	1.875"	Yes	1/2" x 1/4"	Steel	4.5"	77.8mm	L190	SGD 213.21

MARTIN SPROCKET -

Universal Series Jaw Couplings

Style	Model	Price (inc. GST)
A	ML095 1/2	SGD 41.05
B	ML099 9/16	SGD 50.43
B	ML110 1 5/8	SGD 102.62
B	ML225 1 1/4	SGD 253.34
B	ML150 7/8	SGD 126.08
C	ML075BLK 1/4	SGD 17.52
B	ML150 1 1/4	SGD 126.08
B	ML190 1 1/16	SGD 216.38
B	ML225 1 15/16	SGD 253.34
B	ML225 2 3/8	SGD 253.34
B	ML190 1 15/16	SGD 216.38
B	ML100 11/16	SGD 74.76
B	ML225 1 13/16	SGD 253.34
C	ML110BLK 5/8	SGD 102.62
B	ML225 1 3/8	SGD 253.34
B	ML099 5/8	SGD 50.43
B	ML150 1 11/16	SGD 126.08
D	ML070 5/16	SGD 14.46
B	ML095 11/16	SGD 41.05
B	ML150 1 3/4	SGD 126.08
B	ML190 1 3/8	SGD 216.38
B	ML090 11/16	SGD 26.84
B	ML099 3/4	SGD 50.43
B	ML225 1 9/16	SGD 253.34
B	ML099 7/8	SGD 50.43

HYDRO VACUUM -

Coupling Hubs

Style	Model	Diameter	Price (inc. GST)
A	EZ1 D=54	54"	SGD 64.70	RFQ
A	EZ3 D=82	82"	SGD 68.83	RFQ
A	EZ7 D=107	107"	SGD 76.35	RFQ
A	EZ9 D=127	127"	SGD 86.17	RFQ
A	EZ10 D=180	180"	SGD 126.22	RFQ

MARTIN SPROCKET -

Super Series Jaw Couplings

Style	Model	Price (inc. GST)
A	MS100BLK 1/2	SGD 74.76
B	MS075 1/4	SGD 19.01	RFQ
C	MS099 7/8	SGD 50.43
B	MS050 1/4	SGD 8.76
D	MS070 1/2	SGD 15.73	RFQ
C	MS225 2 1/2	SGD 253.34
C	MS070 5/8	SGD 15.73	RFQ
C	MS225 1 5/16	SGD 253.34
C	MS070 3/4	SGD 15.73	RFQ
B	MS090 1/4	SGD 26.84
C	MS190 1 1/2	SGD 216.38
C	MS225 1 3/8	SGD 253.34
A	MS225BLK 3/4	SGD 314.42	RFQ
C	MS190 1	SGD 216.38
C	MS099 5/8	SGD 50.43
C	MS100 1 3/8	SGD 74.76
C	MS100 13/16	SGD 74.76
C	MS110 15/16	SGD 102.62
A	MS075BLK 1/4	SGD 17.52
C	MS099 1 1/4	SGD 50.43
C	MS110 11/16	SGD 102.62
C	MS095 13/16	SGD 41.05
C	MS100 15/16	SGD 74.76
C	MS075 13/16	SGD 17.52
C	MS225 2 1/4	SGD 253.34

MARTIN SPROCKET -

Universal Series Jaw Couplings, Stainless Steel

Style	Model	Price (inc. GST)
A	ML095SS 5/8	SGD 181.87
B	ML075SS 5/8	SGD 146.70
C	ML100SS 1 3/8	SGD 200.75
D	ML110SS 1 5/8	SGD 376.80
E	ML110SS 1	SGD 376.80
F	ML150SS 1 3/8	SGD 488.05
G	ML150SS 1 7/8	SGD 488.05
H	ML150SS 1 3/4	SGD 488.05
I	ML110SS 1 3/8	SGD 376.80
J	ML095SSBLK 7/16	SGD 172.77
K	ML075SS 1/4	SGD 146.70
L	ML150SS 1 1/2	SGD 488.05
M	ML150SS 1	SGD 488.05
N	ML090SSBLK 1/4	SGD 156.05
O	ML150SS 1 5/8	SGD 488.05
C	ML100SS 1 1/8	SGD 200.75
P	ML075SS 1/2	SGD 146.70
Q	ML100SS 3/4	SGD 200.75
R	ML150SS 1 1/8	SGD 488.05
C	ML100SS 1	SGD 200.75
C	ML095SS 1 1/8	SGD 181.87
S	ML100SSBLK 1/2	SGD 203.44
T	ML075SS 7/8	SGD 146.70
U	ML075SSBLK 1/4	SGD 139.33
V	ML075SS 3/4	SGD 146.70

LOVEJOY -

GS Series Aluminum Hubs, Inch Bores

Style	Model	Dimension G	Bolt Hole Size	Bore Size	Dimension HD	Dimension TH	Keyway Width	Length through Bore	Max. Bore	Price (inc. GST)
A	68514476514	0.63"	-	5/8"	1.57"	0.12"	-	0.98"	0.938"	SGD 293.46	RFQ
B	68514476318	0.630"	-	5/8"	1.57"	0.12"	3/26" x 3/32"	0.980"	0.938"	-	RFQ
B	68514476513	0.630"	0.470"	7/8"	1.57"	0.12"	-	0.980"	0.938"	SGD 293.46	RFQ
B	68514476523	0.630"	0.470"	1/2"	1.57"	0.12"	-	0.980"	0.938"	SGD 293.46	RFQ
B	68514476175	0.790"	-	3/4"	2.560"	0.160"	3/16" x 3/32"	1.380"	1.5"	-	RFQ
B	68514476538	0.940"	0.790"	1 3/4"	3.15"	0.160"	-	1.770"	1.75"	SGD 454.64	RFQ
B	68514476539	0.940"	0.790"	1 1/2"	3.15"	0.160"	-	1.770"	1.75"	SGD 432.97	RFQ

LOVEJOY -

H Type Coupling Hubs, Rough Stock Bore

Style	Model	Nominal Torque	Coupling Size	Dimension HD	Outside Dia.	Rated HP at 1,200 rpm	Rated HP at 1,800 rpm	Rated HP at 100 rpm	Rough Stock Bore	Price (inc. GST)
A	68514448070	-	H3067	-	-	-	-	-	-	SGD 4633.75	RFQ
B	68514450883	46632 in.-lbs.	H3567	7.750"	110"	888 hp	1332 hp	74 hp	2 5/8"	-	RFQ
B	68514447878	64812 in.-lbs.	H3667	8.750"	120"	1236 hp	1851 hp	103 hp	3"	-	RFQ
B	68514455473	88224 in.-lbs.	H4067	9.750"	13.250"	1680 hp	2520 hp	140 hp	3 1/4"	-	RFQ
B	68514455477	119700 in.-lbs.	H4567	10.750"	14.500"	2280 hp	-	190 hp	3 1/2"	-	RFQ

LOVEJOY -

RRS And RRSC Type Hubs With Keyway, Metric Bores

Style	Model	Item	Hub Style	Bore Size	Coupling Size	Keyway Width	Length through Bore	Material	Max. Bore
A	68514455676	Hub	2	38mm	RRSC150	10mm x 3.3mm	44.45mm	Sintered Iron	48mm	RFQ
A	68514455677	Hub	2	40mm	RRSC150	12mm x 3.3mm	44.45mm	Sintered Iron	48mm	RFQ
A	68514455678	Hub	2	42mm	RRSC150	12mm x 3.3mm	44.45mm	Sintered Iron	48mm	RFQ
A	68514455680	Hub	3	38mm	RRSC190	10mm x 3.3mm	49.28mm	Cast Iron	54mm	RFQ
A	68514455681	Hub	3	40mm	RRSC190	12mm x 3.3mm	49.28mm	Cast Iron	54mm	RFQ
A	68514455682	Hub	3	42mm	RRSC190	12mm x 3.3mm	49.28mm	Cast Iron	54mm	RFQ
A	68514477511	RRS Type Hub	4	32mm	RRS225	10mm x 3.3mm	55.37mm	Cast Iron	67mm	RFQ

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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.

Categories

Brands

Jaw Coupling Hubs

Jaw/ Spider Aluminum Clamp-Style Drive Coupling Hubs

SJC Series Drive Coupling Hubs

CJ Series Hubs Spline Bore

CJ Series Hubs Nodular Iron, B Style, Metric Bores

Jaw Coupling Hubs

Universal Series Jaw Couplings

Coupling Hubs

Super Series Jaw Couplings

Universal Series Jaw Couplings, Stainless Steel

GS Series Aluminum Hubs, Inch Bores

H Type Coupling Hubs, Rough Stock Bore

RRS And RRSC Type Hubs With Keyway, Metric Bores

Jaw Coupling Hubs

Uses

Features

Working Mechanism

Standards and Approvals

Frequently Asked Questions

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Categories

Brands

Jaw Coupling Hubs

Jaw Coupling Hubs

Uses

Features

Working Mechanism

Standards and Approvals

Frequently Asked Questions

How to install a jaw coupling hub?

What is the difference between rigid and flexible jaw coupling?

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

How to choose the right jaw coupling hub?

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

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Looking for a part not listed here?

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