A 7Z 7M2844ST is a stainless steel thrust bearing set comprising four 4.76 mm balls, a molded nylon retainer rated to 120°C, and two washers of 410 stainless steel hardened to HRC 38-42. The bearing has a bore diameter of 28 mm (tolerance 28.30 to 28.07 mm), an outer diameter of 44 mm (tolerance 43.97 to 43.69 mm), and a total thickness of 36.5 mm. It supports a static load rating of 1566 N at 15 rpm and 832 N at 100 rpm. The balls are made of 440C stainless steel hardened to HRC 58-65.
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 7M2844 |
| Product Name | A 7Z 7M2844 Comprised of 2 Washers and a Retainer with Balls |
