Supply of high-quality sliding bearing aluminum-based steel ball cage

[Application Features]
The aluminum-based steel ball cage is based on hard aluminum alloy, and on its outer surface, holes of appropriate size and special shape are processed in an orderly manner, and rolling bearings are embedded in the holes. steel ball. The orifice adopts the latest grooved circumferential ball locking technology, which effectively solves the problem that traditional point locking balls and indentation locking balls cannot completely prevent the steel ball from falling off. A stop is processed at the bottom of the hole so that the copper ball can 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, when in use the steel ball is higher than the inner and outer circular surfaces of the retaining ring and directly contacts the matching holes and shafts, making the base body (the retaining ring) float in the middle, and the matching holes and shafts The difference in radius is less than the diameter of the steel ball, that is, the steel ball matches it with an interference fit, with high matching accuracy and flexible relative movement between the shaft and the hole. It is an updated product of the retaining ring.
Guide bush material r, B, heat treatment , hardness R~, technical conditions according to B/, the fit with the shaft should have ~ radial interference, surface roughness is
Shaft material r, B, heat treatment, hardness R~, technical conditions according to B/, shaft The tolerance is adopted, and the surface roughness is
Measurement uses common measuring methods (pneumatic measuring instrument, outer diameter dry measuring ruler, inner diameter micrometer, etc.) to measure the dimensional deviation value of the shaft guide bushing and steel ball, and the fit can be obtained The final interference amount is +, and the required interference amount is ~.