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DIN 137 (B):1994 Wave Spring Washer

DIN 137 (B):1994 Wave Spring Washer uses a wave-shaped profile to provide elastic preload in limited axial space. Compared with a plain washer, the wave form can maintain a degree of compensation when the joint experiences slight settlement or thermal expansion and contraction.

It is suitable for electrical assemblies, light machinery, axial clearance adjustment, instruments, and connection points requiring flexible support. Its elastic behavior helps reduce loosening risk and provides stable contact pressure under low-to-medium loads.

Specifications and materials can be selected according to assembly space, load variation, and environmental requirements, making it suitable for compact or precision connections needing lightweight construction, low height, and elastic compensation.

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PREV：ASME/ANSI B18.21.1 (T2):2009 Heavy Spring Washer NEXT：DIN 137 (A):1987 Curved Spring Washer

Dimensions unit: mm

Nominal diameter 3 3.5 4 5 6 7 8 10 12 14
d Min.=Nominal (H14) 3.2 3.7 4.3 5.3 6.4 7.4 8.4 10.5 13 15
Max. 3.5 4 4.6 5.6 6.76 7.76 8.76 10.93 13.43 15.43
dc Nominal (js16) 8 8 9 11 12 14 15 21 24 28
Max. 8.45 8.45 9.45 11.55 12.55 14.55 15.55 21.65 24.65 28.65
Min. 7.55 7.55 8.55 10.45 11.45 13.45 14.45 20.35 23.35 27.35
h Nominal 0.5 0.5 0.5 0.5 0.5 0.8 0.8 1 1.2 1.6
Max. 0.55 0.55 0.55 0.55 0.55 0.86 0.86 1.07 1.27 1.68
Min. 0.45 0.45 0.45 0.45 0.45 0.74 0.74 0.93 1.13 1.52
H Max. 1.6 1.8 2 2.2 2.6 3 3 4.2 5 6
Min. 0.8 0.9 1 1.1 1.3 1.5 1.5 2.1 2.5 3
Weight per thousand pieces (steel)≈kg  ≈ 0.166 0.154 0.193 0.286 0.318 0.7 0.762 2.04 3.01 5.51

  

Nominal diameter 16 18 20 22 24 27 30 33 36
d Min.=Nominal (H14) 17 19 21 23 25 28 31 34 37
Max. 17.43 19.52 21.52 23.52 25.52 28.52 31.62 34.62 37.62
dc Nominal (js16) 30 34 36 40 44 50 56 60 68
Max. 30.65 34.8 36.8 40.8 44.8 50.8 56.95 60.95 68.95
Min. 29.35 33.2 35.2 39.2 43.2 49.2 55.05 59.05 67.05
h Nominal 1.6 1.6 1.6 1.8 1.8 2 2.2 2.2 2.5
Max. 1.68 1.68 1.68 1.9 1.9 2.1 2.3 2.3 2.65
Min. 1.52 1.52 1.52 1.7 1.7 1.9 2.1 2.1 2.35
H Max. 6.4 6.6 7.4 7.8 8.2 9.4 10 10.6 11.6
Min. 3.2 3.3 3.7 3.9 4.1 4.7 5 5.3 5.8
Weight per thousand pieces (steel)≈kg  ≈ 6.03 7.84 8.43 11.9 14.5 21.1 29.5 33.1 50.2

① Material:

FST = spring steel according to DIN 267-26

DIN 267-26: Spring washers should be made of spring steel (FSt) conforming to standard DIN 17 221 or DIN 17 222; spring washers hardness HV430-530 

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