The A 7Z28-P125 is a pillow block housing designed for mounting ball bearings with a 1.250 inch bore diameter. It is constructed from sintered aluminum and measures 1-15/16 inches in length, 4 inches in width, 5/8 inch in height, with a mounting hole spacing of 3-1/8 inches. The housing has an overall height of 1-7/8 inches and supports additional machining for integration into assemblies.
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 | Bearing Rings, Housings, and Flanges |
| Product Number | A 7Z28-P125 |
| Product Name | 1.25" Housing Diameter For Mounting Ball Bearings |
| Housing Bore / Bearing O.D. | 31.75 mm (1.25 inch) |
