S99NH2MBN1712 is a caged needle roller bearing designed for use with hardened shafts of 17 mm diameter, offering high load capacity and high-speed performance. It features a case-hardened steel roller cup, 52100 hardened chrome steel needles, and a low carbon steel cage. The bearing has a bore diameter of 17 mm, an outer diameter of 23 mm, and a face width of 12 mm. It supports a dynamic load capacity of 7900 N and a static load capacity of 10302 N, with a maximum speed of 15000 rpm when oil-lubricated. Shaft surface hardness must be HRC 58 minimum for direct mounting. The housing bore tolerance follows the N6 specification for steel or cast iron housings.
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 | S99NH2MBN1712 |
| Product Name | Mount Bearing on Hardened Shaft or Use Hardened Inner Race |
| Application | Aerospace |
| Design Units | Metric |
| Bore | 0.6693 inch (17.000 mm) |
