Patent classifications
Y10T29/49686
Pinion needle roller bearing post for use during pinion gear carrier assembly
A pinion needle roller bearing post for use during pinion gear carrier assembly includes a solid cylindrical post having a longitudinal surface wall extending between a first end and a second end. At least one radially recessed channel is disposed in the longitudinal surface and extends substantially between the first end and the second end and a spring biased needle roller is disposed within the at least one radially recessed channel that operates to prevent needle roller bearing skew during pinion gear carrier assembly.
PINION NEEDLE ROLLER BEARING POST FOR USE DURING PINION GEAR CARRIER ASSEMBLY
A pinion needle roller bearing post for use during pinion gear carrier assembly includes a solid cylindrical post having a longitudinal surface wall extending between a first end and a second end. At least one radially recessed channel is disposed in the longitudinal surface and extends substantially between the first end and the second end and a spring biased needle roller is disposed within the at least one radially recessed channel that operates to prevent needle roller bearing skew during pinion gear carrier assembly.
Method for manufacturing a ball bearing, notably for a butterfly valve in an aeronautical environment
The manufacturing method notably includes a step (110) for sintering steel powder (10), the chemical composition of which includes, in mass percent, 2.3% of carbon, 4.2% of chromium, 7% of molybdenum, 6.5% of tungsten, 10.5% of cobalt and 6.5% of vanadium, so as to obtain a sintered steel (12) and shaping of the sintered steel (12), for forming a bearing ring (18).
Method and apparatus for manufacturing rolling-element bearing
A rolling-element bearing in which a rolling element is retained in each of retaining openings formed in a retainer and method for manufacturing the bearing are provided. Each retaining opening is defined by a pair of inner side faces facing each other, and a pair of inner end faces facing each other. In the manufacturing method, with a support die being brought into contact with one of the inner side faces and the inner end faces of one of the retaining openings, the outer and inner circumferential surfaces of the retainer are pressed by an outer punch and an inner punch. Accordingly, on at least one of the inner side faces and the inner end faces, a first retaining piece and a second retaining piece for preventing the rolling element from falling off are formed on the outer circumferential surface and the inner circumferential surface of the retainer, respectively.