The A 7M 7M0409 is a thrust bearing with a molded nylon retainer and hardened S.A.E 1018 steel balls, designed to support axial loads by reducing friction between rotating components. The bearing has a 4 mm bore and a 9 mm outer diameter, with a washer thickness of 4.24 to 4.04 mm and a total bearing thickness of 4.24 mm. It contains six balls, each with a diameter of 1.587 mm, and is rated for a static load of 227 N at 15 rpm and 120 N at 100 rpm. The retainer is limited to a maximum operating temperature of 120°C.
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 7M0409 |
| Product Name | Nylon Retainer With Hardened Steel Balls |
