A 7M 7M2844 is a thrust bearing with a molded nylon retainer and hardened steel balls, designed for axial load support in rotating applications. The bearing has a bore diameter of 28 mm with a tolerance of 28.30 to 28.07 mm, an outer diameter of 44 mm with a tolerance of 43.97 to 43.69 mm, and a washer thickness of 36.5 mm. The retainer is rated for maximum operating temperatures of 120°C. The assembly includes 12 balls with a diameter of 4.76 mm and is rated for a load of 2242 N at 15 rpm and 1188 N at 100 rpm. Load capacity at 900 rpm is approximately half the 100 rpm rating.
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 7M2844 |
| Product Name | Nylon Retainer With Hardened Steel Balls |
