A 7Z 7-075ST is a thrust bearing assembly comprising a molded nylon retainer with eight 440C stainless steel balls and two 410 stainless steel washers, designed for axial load support. The bearing has a 3/4 inch bore diameter and a 1.240 to 1.249 inch outer diameter, with a washer thickness of 1.000 inch. It is rated for 205 lb at 15 rpm and 108 lb at 100 rpm, with the retainer limited to a maximum temperature of 250°F. The bearing components are specified as A 7M 7-075ST for the retainer and balls, and A 7Y 7-075 for the washers.
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 7-075ST |
| Product Name | A 7Z 7-075ST - Comprised of a Retainer with balls (A 7M 7-075ST) and Two(2) Washers ( A 7Y 7-075 ) |
| Outside Diameter | 1.2500 inch (31.750 mm) |
