The S99NH2MBN1512 is a caged needle roller bearing designed for use on hardened shafts from 3 mm to 25 mm diameter, with a shaft bore diameter of 15 mm, an outer diameter of 21 mm, and a face width of 12 mm. It supports a dynamic load capacity of 9399 N and a static load capacity of 15200 N, with a maximum speed of 16000 rpm when oil-lubricated. The bearing features a case-hardened steel roller cup, 52100 hardened chrome steel needles, and a low carbon steel cage. Shaft hardness must be a minimum of HRC 58, and housing bore tolerances follow the N6 standard for steel or cast iron. It is a low-profile, lightweight design optimized for high-speed and high-load applications with low friction and high lubrication capacity.
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 | S99NH2MBN1512 |
| Product Name | Mount Bearing on Hardened Shaft or Use Hardened Inner Race |
| Application | Aerospace |
| Design Units | Metric |
| Bore | 0.5906 inch (15.000 mm) |
