A 7Z31-PB1000B is a pillow block-mounted, self-aligning sintered bronze bearing with a 1-inch bore, designed for low-friction rotation in light-duty applications. The bearing housing is sintered aluminum, and the bearing material is SAE 840 sintered bronze, operating within a temperature range of -20°F to +200°F. It has an overall height of 2-9/16 inches, length of 5 inches, and width of 29/32 inches. The mounting hole distance is 4 inches, with a flange hole diameter of 9/16 inch. It supports a maximum radial load of 4500 lbf and a maximum speed of 1000 rpm. The bearing self-aligns to ±5°.
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 7Z31-PB1000B |
| Product Name | 1" Bore, Pillow Block-Mounted with Sintered Bronze Pressbearing |
| Shaft Diameter | 1 inch (25.4 mm) |
| Load Rating | 1000 lbs (454 kg) |
| Housing | Aluminum |
| Length | 5 inch (127 mm) |
