A 7M 7-125ST is a complete thrust bearing component set consisting of a molded nylon retainer and hardened 440C stainless steel balls, designed for axial load support in rotating assemblies. It is compatible with the A 7Z 7-125ST bearing set, which has a 1-1/4 inch bore, 1-7/8 inch outer diameter, and a 1-9/16 inch washer thickness. The retainer is rated for maximum operating temperatures up to 250°F. The bearing supports a load rating of 202 lb at 100 rpm and 101 lb at 900 rpm, based on the manufacturer's specified load degradation curve. The balls are sized to match the A 7Z 7-125ST bearing's 381-ball count under standard conditions.
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 7-125ST |
| Product Name | Nylon retainer with hardened stainless steel balls |
