Year1
r (,,) : / br (,, r/ />
<: r (,,)/ br (,, >
>
Copper base> (,,)>Steel ball cage
is based on copper alloy, and is processed into an array on its outer circumferential surface A rolling bearing steel ball is inserted into the hole of an orderly size and special shape. The hole adopts the latest groove circumferential ball locking technology, which effectively solves the problem that traditional point locking balls and indentation locking balls cannot completely prevent The problem of steel ball falling off. A stop is machined at the bottom of the hole to allow the copper ball to rotate freely in the hole without falling off. Since the diameter of the steel ball is greater than the wall thickness of the retaining ring, the steel ball is higher than the inner and outer circular surfaces of the retaining ring when in use. Directly contact with the matching hole and shaft, so that the base body (retaining ring) floats in the middle, and the difference in radius between the matching hole and the shaft is less than the diameter of the steel ball, that is, the steel ball matches it with an interference fit, and the matching accuracy is high, and the shaft and The relative movement of the holes is flexible. It is an updated product of the retaining ring.
: >> Guide bushing: material r, B, heat treatment, hardness R~, technical conditions according to B/fitting with the shaft should have ~ Radial interference, surface roughness is >
Shaft: material r, B, heat treatment, hardness R~, technical conditions are according to B/, the tolerance of the shaft is adopted, surface roughness is >< br/>
Measurement: Use common measurement methods (pneumatic measuring instrument, outer diameter dry ruler, inner diameter micrometer, etc.) to measure the dimensional deviation value of the shaft guide bush and the steel ball, and then you can find out the The amount of interference, that is, +, the required amount of interference is ~.
WhatsApp
