External structure shape of bearing

External structure shape of bearing

Code for sealing, dustproof and shape bearing  change of external structure

For example, RS, RZ, Z and FS respectively indicate that there is a skeleton rubber sealing ring on one side of the bearing, and R, N and NR respectively indicate that there are stop plates and stop grooves on the outer ring of the bearing.

Tolerance class code:

P2, P4, P5, P6, p6x and P0 are from high level to low level

Representation of cage:

A: Indicates the outer ring guide

B: Indicates the guide inner ring

J: Represents a stamped steel plate cage

Q: Bronze solid cage

M: Brass solid bearing cage

TN: engineering plastic cage

Crankshaft: a special part used in reciprocating machinery