The S99RH2MBNR0609 is a hardened alloy steel inner race designed for use with needle roller bearings on soft shafts, with a bore diameter of 6 mm, an outer diameter of 9 mm, and a width of 12 mm. The inner race is ground to a surface roughness of 0.40 µm AA and features chamfered corners for easy assembly. It is specified for a k6 fit on the shaft and meets the tolerance range of +0.010/+0.001 mm for a 6 to 10 mm bore diameter. All components in this series are hardened to a minimum Rockwell hardness of HRC 58.
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 | S99RH2MBNR0609 |
| Product Name | Hardened and Grounded Inner Race for Mounting Needle Roller Bearing |
| Application | Aerospace |
