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PEW Plastic Disc Spring
Product Features
Engineering plastic wear resistance washer. Suitable for a fitting to the uncontrollable axial space in order to reduce the vabriation and noise during the operation.
Compensate the axial clearance and machining tolerance;
Shock absorbing and noise optimization;
Maintenance free and self-lubricated;
Corrosion resistance and light weight.

Structure Design

CSB-PEW plastic flat spring is designed with a bump axial surface for the purpose of compensates the axial fitting and machining tolerance in addition to function as a normal washer. Therefore the operation mechanism could be more stable and with less noise.

Material Design

CSB-PEW plastic flat spring is made from the professional wear resistance material CSB-EPB13 which provides good wear resistance and excellent spring feature. At the same time, CSB could also provide the spring washer with high temperature (up to 250℃) material CSB-EPB5 and FDA approved material CSB-EPB5A.

Assembly Design

In order to adjust the fitting clearance, a single flat spring is usually inserted. For bigger clearance adjustment, a group of flat springs combined with back to back or face to face is also a good solution. If a higher elastic characteristic is needed, piling the flat springs parallel and assembles into the required position.

CSB-PEW Plastic Flat Springs

Order P/N
Spring deflections and spring forces
D
mm
d
mm
t
mm
h0
mm
h0.25
mm
F0.25
N
h0.5
mm
F0.5
N
h0.75
mm
F0.75
N
Fmax
N
weight
g
PEW13-05
10
5.2
0.5
0.25
0.06
1
0.13
2.4
0.19
3.6
5
0.04
PEW13-06
12.5
6.2
0.7
0.3
0.08
3
0.15
5.1
0.23
8
12
0.11
PEW13-08
16
8.2
0.9
0.35
0.09
4
0.18
8
0.28
11
15
0.2
PEW13-10
20
10.2
1.1
0.45
0.11
5
0.22
10
0.33
15
18
0.33
PEW13-12
25
12.2
1.5
0.55
0.14
9
0.28
18
0.42
27
40
0.85
PEW13-16
31.5
16.3
1.75
0.7
0.18
15
0.35
32
0.53
51
70
1.44
PEW13-20
40
20.4
2.25
0.9
0.23
35
0.45
70
0.68
110
130
3.1
D:Outer diameter
d:Inner diameter
t:Thickness
h0:Maximum downward deflection of spring
h0.25 ,h0.5 ,h0.75:The maximum downward deflection:25%,50%,75%
F0.25 ,F0.5 ,F0.75:Spring force with 25% 50% 75% downward deflection
Fmax.:The maximum spring force
CSB-PEW Plastic Flat Springs Installation Method

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