High precision roller guide bearings(POM cage), made of POM as base material, are produced by the process of being distributed quality hardened steel balls with certain angle and density. They are in conformity with the European RoHS environmental protection standards and widely used in the applications of cold punching mold and precision machinery due to the advantages of low friction coefficient, good self-lubricating and stable size.
Physical and Mechanical Properties
max. load p max
30 N/mm
interference fit
0.01-0.02
max. sliding speed v
6 m/s
coefficient of friction f
0.01-0.08
deviation of ball diameter
<0.002 mm