The A 7Z 7-081ST is a stainless steel thrust bearing with a 13/16 inch bore, 1-5/16 inch outer diameter, and 1-1/16 inch thickness, comprising 440C stainless steel balls hardened to Rc 58-65, a molded nylon retainer rated for 250°F maximum, and 410 stainless steel washers hardened to Rc 38-42. It supports a static load rating of 220 lb at 100 rpm, with an estimated 116 lb at 900 rpm. The bearing set includes retainer and balls (A 7M 7-081ST) and two washers (A 7Y 7-081).
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 | Thrust Bearings |
| Product Number | A 7Z 7-081ST |
| Product Name | A 7Z 7-081ST - Comprised of a Retainer with balls (A 7M 7-081ST) and Two(2) Washers ( A 7Y 7-081 ) |
| Outside Diameter | 1.3120 inch (33.325 mm) |
