Special spring washer -
Standard stainless steel spring washer
1 Scope
1.1 Subject content
This specification specifies the requirements and quality assurance provisions of standard stainless steel spring washers (hereinafter referred to as "spring washers").
1.2 Application scope
This specification is applicable to the manufacture and acceptance of spring washers.
2 Normative references
GB 93 Single coil spring lock washers, normal type
QJ 2963.1 Special spring washer - General specification
DGB 09 High strength stainless spring steel wire
3 Requirements
3.1 Dimensions and tolerances
Dimensions and tolerances of spring washers shall be as shown in Figure 1 and specified in Table 1.
The radius of the fillet and round of spring washer cross-section shall not be greater than S/4.
Figure 1
Table 1
㎜
Specification (major diameter of thread) d S (b) H m
min max Nominal min max min max > ≤
2 2.1 2.35 0.5 0.42 0.58 1 1.25 0 0.25
2.5 2.6 2.85 0.65 0.57 0.73 1.3 1.63 0.33
3 3.1 3.4 0.8 0.7 0.9 1.6 2 0.4
4 4.1 4.4 1.1 1 1.2 2.2 2.75 0.55
5 5.1 5.4 1.3 1.2 1.4 2.6 3.25 0.65
6 6.1 6.68 1.6 1.5 1.7 3.2 4 0.8
8 8.1 8.68 2.1 2 2.2 4.2 5.25 1.05
10 10.2 10.9 2.6 2.45 2.75 5.2 6.5 1.3
12 12.2 12.9 3.1 2.95 3.25 6.2 7.75 1.55
14 14.2 14.9 3.6 3.4 3.8 7.2 9 1.8
16 16.2 16.9 4.1 3.9 4.3 8.2 10.25 2.05
18 18.2 19.04 4.5 4.3 4.7 9 11.25 2.25
Note: The dimensions in the table are selected from GB 93-87.
3.2 Material
Stainless steel 1Cr18Ni9Ti, in accordance with DGB 09.
3.3 Mark example
The spring washer with the specification of 5mm is marked as follows:
Spring washer QJ 2963.2 5
3.4 Other requirements
Other requirements shall be in accordance with QJ 2963.1, clauses 3 and 5.
4 Quality assurance provisions
The quality assurance provisions shall be in accordance with QJ 2963.1, clause 4.
