Spherical Washers

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Spherical washers are designed for creating a parallel plane between the bolt head and the face of the nut. Raptor Supplies offers spherical washers from Grainger. They are also known as levelling washers and are ideal for die & fixturing applications.

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Spherical Washer

StyleModelFinishFits Bolt SizesMaterialOutside Dia.RadiusRockwell HardnessThicknessThickness TolerancePrice (inc. GST)
AZ9450SETBlack Oxide1/4"Low Carbon Steel5/8"3/4"B493/16"+/-0.010" SGD 36.03
BZ9532SETBlack OxideM20Steel36mm27mmB6811.7mm+/-0.2mm SGD 56.80
BZ9530SETBlack OxideM16Steel30mm22mmB689.6mm+/-0.2mm SGD 44.65
BZ9534SETBlack OxideM24Steel44mm32mmB6815.2mm+/-0.2mm SGD 100.36
BZ9526SETBlack OxideM12Steel24mm17mmB688mm+/-0.2mm SGD 24.46
BZ9524SETBlack OxideM10Steel21mm15mmB686.5mm+/-0.2mm SGD 20.55
CZ9454SETBlack Oxide3/8"Low Carbon Steel7/8"1.25"B491/4"+/-0.010" SGD 40.18
BZ9522SETBlack OxideM8Steel17mm12mmB685.6mm+/-0.2mm SGD 15.19
BZ9536SETBlack OxideM30Steel56mm41mmB6819.2mm+/-0.2mm SGD 200.30
BZ9520SETBlack OxideM6Steel12 mm9mmB684.2mm+/-0.2mm SGD 14.08
DZ9488SETBlack Oxide1.5"Low Carbon Steel2.875"3"B491/2"+/-0.010" SGD 61.70
EZ9484SETBlack Oxide1.25"Low Carbon Steel2.5"3"B491/2"+/-0.010" SGD 48.93
FZ9478SETBlack Oxide1.125"Low Carbon Steel2.25"3"B491/2"+/-0.010" SGD 36.03
GZ9474SETBlack Oxide1"Low Carbon Steel2"2.75"B491/2"+/-0.010" SGD 51.50
HZ9470SETBlack Oxide7/8"Low Carbon Steel1.75"2.5"B493/8"+/-0.010" SGD 39.43
IZ9466SETBlack Oxide3/4"Low Carbon Steel1.625"2.25"B493/8"+/-0.010" SGD 30.69
JZ9462SETBlack Oxide5/8"Low Carbon Steel1.375"1.75"B495/16"+/-0.010" SGD 26.72
KZ9458SETBlack Oxide1/2"Low Carbon Steel1.125"1.5"B495/16"+/-0.010" SGD 24.46
BZ9535SETPlainM2418-8 Stainless Steel44mm32mmB83 to B9515.2mm+/-0.2mm SGD 256.55
BZ9533SETPlainM2018-8 Stainless Steel36mm27mmB83 to B9511.7mm+/-0.2mm SGD 201.97
BZ9523SETPlainM818-8 Stainless Steel17mm12mmB83 to B955.6mm+/-0.2mm SGD 61.33
LZ9531SETPlainM1618-8 Stainless Steel30mm22mmB83 to B959.6mm+/-0.2mm SGD 154.32
MZ9527SETPlainM1218-8 Stainless Steel24mm17mmB83 to B958mm+/-0.2mm SGD 95.50
BZ9525SETPlainM1018-8 Stainless Steel21mm15mmB83 to B956.5mm+/-0.2mm SGD 77.82
BZ9521SETPlainM618-8 Stainless Steel12 mm9mmB83 to B954.2mm+/-0.2mm SGD 42.78
GRAINGER -

Stainless Steel Spherical Washers

StyleModelOutside Dia.RadiusThicknessPrice (inc. GST)
AZ9458SETSS1 1/8"1 1/2"5/16" SGD 70.72
BZ9470SETSS1 3/4"2 1/2"3/8" SGD 70.29
CZ9462SETSS1 3/8"1 3/4"5/16" SGD 82.13
DZ9466SETSS1 5/8"2 1/4"3/8" SGD 117.36
EZ9484SETSS2 1/2"3 in1/2" SGD 195.14
FZ9478SETSS2 1/4"3 in1/2" SGD 156.95
GZ9488SETSS2 7/8"3 in1/2" SGD 255.75
HZ9474SETSS2 in2 3/4"1/2" SGD 103.03
IZ9450SETSS5/8"3/4"3/16" SGD 40.80
JZ9454SETSS7/8"1 1/4"1/4" SGD 52.33

Spherical Washers

Spherical washers are designed for creating a parallel plane between the bolt head and the face of the nut. Raptor Supplies offers spherical washers from Grainger. They are also known as levelling washers and are ideal for die & fixturing applications.

Features

  • The spherical design allows these washers to automatically adjust and compensate for the angular deviation between planes.
  • They minimise bolt fatigue from bending bolts.
  • These washers provide uniformly distributed bolt tension.
  • They are surface treated for protection against harsh & humid environments.
  • These washers feature improved bolt stretch owing to the increased clamping length.
  • They are offered in thicknesses ranging from 4.2 mm to 0.5 inches, at a maximum tolerance rating of +/-0.01 inches.

Frequently Asked Questions

How much angular deviation can spherical washers compensate?

All-spherical, two-piece washers automatically adjust under compression for compensating angular deviations up to 4 degrees.

What is the significance of male and female components in a spherical washer?

When the male and female components nest, they swivel slightly to compensate for uneven surfaces & tolerance variations.

What is the advantage of compensating angular deviations?

Compensation of angular deviations creates a parallel plane between the inner face of the nut and the inner face of the bolt head. This allows uniform distribution of load over the complete inner contact surface area.

What is the nature of tolerance of the concave and convex components of these spherical washers?

The concave component has a positive tolerance while the convex part has a negative tolerance.

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