CSB Plastic is one of the leading China plastic thrust bearings manufacturers and suppliers, and also a professional low friction bearings, polymer thrust bearings, plastic washers factory and company, we are always at your services.


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







http://www.csbbearings.com/plastic-bearings/plastic-thrust-bearings.html