The A 7Z47MPSN08M is a press-fit needle roller bearing with an 8 mm bore, designed for high-speed, high-load applications without requiring precision holes. It features a drawn cup with a carbon steel housing and black oxide finish, self-aligning to ±5°, and operates between -30°C and +100°C. The bearing requires a shaft material with HRC 58-64 hardness and a surface finish of 0.4 µm or finer. Its outer diameter is 20.6 mm, housing height is 15.2 mm, and it supports a maximum radial load of 2050 N at a speed of 28,000 rpm.
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 | A 7Z47MPSN08M |
| Product Name | 8mm Bore, 20.6mm Panel Hole Size, Self Clinching needle roller Pressbearing. |
| Type | Self-aligning |
