Home » Rectangular Profile Spring Washers (DIN 127B)

Rectangular Profile Spring Washers (DIN 127B)

DIN127(B) spring washers


standard
DIN127.pdf
name
Spring washers, heavy duty spring washers
English name
Spring Washer
Approximate Standard
GB93.pdf
Material
Stainless steel, nonferrous metals, etc.
surface
Natural color, passivation, electroplating...
Performance level
Application Areas
Bolt connection, nut connection
Introduction

Spring washers are mainly used for screws and are often used in conjunction with flat washers. They produce elastic deformation through the shape of the spring, and under the action of preload, they generate a certain tightening force, thus effectively preventing the loosening of the bolt connection.

DIN 127 spring washers specify the dimensions and material grades of spring washers. DIN 127 spring washers are divided into two series, A and B. DIN 127A (standard): Single-bend spring washers with flat ends, similar to GB93, suitable for most standard applications. DIN 127B (load-bearing or heavy-duty): Single-bend spring washers with square ends, primarily used in applications requiring higher loads.

This page introduces DIN127 Type B.

Download the original German standard document: DIN127.pdf

DIN127 B type size standard

drawing:

DIN127 spring washers

Size table (unit: MM)

Nominal Diameter F2 Φ2.2 Φ2.5 F3 Φ3.5 F4 F5 F6 F7 F8 F10 F12 F14 F16 F18 F20 F22 Φ24 F27 Φ30 Φ36 F39 F42 Φ45 F48 F52 F56 Φ60 Φ64 Φ68 Φ72 Φ80 Φ90 Φ100
d Minimum 2.1 2.3 2.6 3.1 3.6 4.1 5.1 6.1 7.1 8.1 10.2 12.2 14.2 16.2 18.2 20.2 22.5 24.5 27.5 30.5 36.5 39.5 42.5 45.5 49 53 57 61 65 69 73 81 91 101
Maximum 2.4 2.6 2.9 3.4 3.9 4.4 5.4 6.5 7.5 8.5 10.7 12.7 14.7 17 19 21.2 23.5 25.5 28.5 31.7 37.7 40.7 43.7 46.7 50.5 54.5 58.5 62.5 66.5 70.5 74.5 82.5 92.5 103
n Nominal 0.9 1 1 1.3 1.3 1.5 1.8 2.5 2.5 3 3.5 4 4.5 5 5 6 6 7 7 8 10 10 12 12 12 14 14 14 14 14 14 14 14 14
Maximum 1 1.1 1.1 1.4 1.4 1.6 1.9 2.65 2.65 3.15 3.7 4.2 4.7 5.2 5.2 6.2 6.2 7.25 7.25 8.25 10.3 10.3 12.3 12.3 12.3 14.3 14.3 14.3 14.3 14.3 14.3 14.3 14.3 14.3
Minimum 0.8 0.9 0.9 1.2 1.2 1.4 1.7 2.35 2.35 2.85 3.3 3.8 4.3 4.8 4.8 5.8 5.8 6.75 6.75 7.75 9.75 9.75 11.8 11.8 11.8 13.8 13.8 13.8 13.8 13.8 13.8 13.8 13.8 13.8
h Nominal 0.5 0.6 0.6 0.8 0.8 0.9 1.2 1.6 1.6 2 2.2 2.5 3 3.5 3.5 4 4 5 5 6 6 6 7 7 7 8 8 8 8 8 8 8 8 8
Maximum 0.6 0.7 0.7 0.9 0.9 1 1.3 1.7 1.7 2.1 2.35 2.65 3.15 3.7 3.7 4.2 4.2 5.2 5.2 6.2 6.2 6.2 7.25 7.25 7.25 8.25 8.25 8.25 8.25 8.25 8.25 8.25 8.25 8.25
Minimum 0.4 0.5 0.5 0.7 0.7 0.8 1.1 1.5 1.5 1.9 2.05 2.35 2.85 3.3 3.3 3.8 3.8 4.8 4.8 5.8 5.8 5.8 6.75 6.75 6.75 7.75 7.75 7.75 7.75 7.75 7.75 7.75 7.75 7.75
H Minimum 1 1.2 1.2 1.6 1.6 1.8 2.4 3.2 3.2 4 4.4 5 6 7 7 8 8 10 10 12 12 12 14 14 14 16 16 16 16 16 16 16 16 16
Maximum 1.2 1.4 1.4 1.9 1.9 2.1 2.8 3.8 3.8 4.7 5.2 5.9 7.1 8.3 8.3 9.4 9.4 11.8 11.8 14.2 14.2 14.2 16.5 16.5 16.5 18.9 18.9 18.9 18.9 18.9 18.9 18.9 18.9 18.9
Thousand pieces weight (steel) ≈ kg 0.03 0.05 0.05 0.11 0.12 0.18 0.36 0.83 0.93 1.6 2.53 3.82 6.01 8.91 9.73 15.2 16.5 26.2 28.7 44.3 67.3 71.7 111 117 123 182 193 203 218 228 240 262 290 318




①, Material:
FST = Spring steel according to DIN 267-26
DIN 267-26 : Spring washers should be made of spring steel (FSt) in accordance with DIN 17 221 or DIN 17 222 ; Spring washers hardness HV430-530

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