BNDIRXM0812105 is an alloy steel inner race designed for needle bearings, with a nominal bore of 8 mm and an outside diameter of 12.001 mm, suitable for press-fit mounting on soft shafts. It is hardened to HRC 58 minimum, features an O.D. surface roughness of 0.4 µm AA, and has chamfered corners for ease of assembly. The part accommodates shaft translation due to its wider design and can also serve as a hardened bushing.
A bearing is a device that reduces friction between moving components by preventing metal-to-metal contact while assisting components (shafts, axles, and wheels) to freely rotate around a fixed axis, cutting down on heat generation and the amount of energy that is consumed. By replacing sliding motion with low-friction rolling motion, the life of the rotating components is increased. A bearing also keeps the shaft in the proper position, providing support and alignment and transferring the axial or radial loads to the housing.
The types of bearings that we offer include rolling element bearings, which consist of both ball bearings and roller bearings.
Balls are utilized as the rolling element in ball bearings; a retainer holds the balls in place and allows them to freely rotate. The balls are kept inside channels cut in both the inner and outer races. Because there is no surface contact between the balls and races, precision ball bearings have a lower load capacity for their size than other bearings.
| Stock Drive Products & Sterling Instrument - SDP/SI | |
|---|---|
| Product Category | Needle Roller Bearings |
| Product Number | BNDIRXM0812105 |
| Product Name | 7mm ID, 9.997mm OD Alloy Steel Inner Race for Needle Bearing |
| Application | Aerospace |
