A 7Z59-PF312L is a pillow block bearing with a 5/16 inch bore, designed for low-friction rotation and radial load support up to 122 lbf dynamic and 61 lbf static, with a maximum speed of 40,000 rpm and operating temperature range of -30°F to +250°F. It features a self-aligning design capable of ±5° misalignment, a high chromium alloy steel bearing, carbon steel flange and retainer with black oxide finish, and double shields. The unit is pillow flange-mounted and follows ABEC 3 precision standards.
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 | Pillow Block Bearings |
| Product Number | A 7Z59-PF312L |
| Product Name | 0.3125" Nominal Bore size Pillow Block made from 0.060" thick sheet metal with a mounted ball bearing |
| Bearing Type | Ball |
| Shaft Diameter | 0.3125 inch (7.94 mm) |
| Load Rating | 122 lbs (55.33 kg) |
| Housing | Carbon Steel, Black Ox. |
