A 7M 7-031 is a thrust bearing retainer and ball assembly for use with the D787 A 7Z 7-031 complete bearing set, featuring S.A.E 1018 hardened steel balls (Rc 60 min) and a molded nylon retainer rated for temperatures up to 250°F. The complete bearing includes a washer of CR1075 steel hardened to Rc 59-61, with a bore diameter of 5/16 inch, an outside diameter of 5/8 inch, and a total bearing thickness of 15/32 inch. It contains 9 balls and is rated for a static load capacity of 136 lbf at 15 rpm and 72 lbf at 100 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 | Bearing Retainers and Cages |
| Product Number | A 7M 7-031 |
| Product Name | Nylon retainer with hardened stainless steel balls |
