The A 7Z 7-075 is a thrust bearing set consisting of a nylon retainer with eight steel balls, and two hardened steel washers, designed for axial load support in rotating applications. It has a bore diameter of 0.753 to 0.760 inch, an outside diameter of 1.240 to 1.249 inch, and a total thickness of 0.093 inch with a tolerance of ±0.003 inch. The balls are made of S.A.E 1018 steel hardened to Rockwell C60 minimum, and the washers are CR1075 steel hardened to Rockwell C59-61. The retainer is molded nylon rated for maximum operating temperature of 250°F. The assembly is rated for a dynamic load of 293 lbf at 15 rpm and 155 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 | Thrust Bearings |
| Product Number | A 7Z 7-075 |
| Product Name | A 7Z 7-075 - Comprised of a Retainer with balls (A 7M 7-075) and Two(2) Washers ( A 7Q 7-075 ) |
| Outside Diameter | 1.2500 inch (31.750 mm) |
