A 7Z41-PSB250 is a self-aligning, self-lubricating sintered bronze pressbearing with a 0.251 inch bore and a 0.5 inch panel hole size, designed for press-fit installation. It operates between -20°F and +200°F and supports a maximum radial load of 360 lbf at 15,270 rpm. The bearing requires a shaft with a minimum surface roughness of Rb 95 and a finish of 16 µin. or finer. The retainer is carbon steel with a black oxide finish. The maximum insert height is 0.625 inch and the flange diameter is 0.69 inch.
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 | Plain Bearings and Sleeve Bearings |
| Product Number | A 7Z41-PSB250 |
| Product Name | 0.251" Bore, 0.5" Panel Hole Size, Sintered Bronze Pressbearing. |
| Bushing Type | Sleeve |
