Thrust ball bearings, how to see from the exterior, distinguish the seat ring and shaft ring, and there is both the material and heat treatment the same way?
The inner diameter of the seat ring is slightly larger than the inner diameter of the axle ring
The outer ring is the seat ring, and the inner ring is the shaft ring.In general, the two materials are the same, and with the rolling of the material is generally the same, for example, both the inner and outer rings or roller (ball) conventional materials are mostly GCr15, but the ball hardness requirements are higher. The prior heat treatment is usually spheroidizing annealing, and the final heat treatment is usually quenching + low temperature tempering.
We call it "tight circle" and "living circle"". It is obvious that the "tight ring" is assembled on the shaft (which is turned on the axle and turns on the axle), and the "live ring" is assembled on the machine body (the inside diameter is greater than the tight ring and the diameter of the assembly shaft). The assembly error caused the temperature to rise and upset the axle neck.Judging from the appearance: "tight ring" diameter smooth (grinding machine processing), the surface roughness is extremely fine! The "loop" has a rough inside diameter and has obvious grooves (non grinding), which helps to distinguish between tight rings".Although the "tight ring" and "living circle" of the points, the materials and heat treatment is no difference, hardness equivalent!
