A 7Z 7M0409 is a thrust bearing set consisting of hardened S.A.E 1018 steel balls, a molded nylon retainer rated to 120°C, and a CR1075 steel washer. It has a bore diameter of 4 mm with a tolerance of 4.06 to 4.01 mm, an outside diameter of 9 mm with a tolerance of 9.04 to 8.94 mm, a washer thickness of 4.24 to 4.04 mm, and a ball circle diameter of 6.5 mm with a tolerance of ±0.03 mm. The bearing contains six balls with a diameter of 1.587 mm and has a dynamic load rating of 227 N at 15 rpm and 120 N 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 7M0409ST |
| Product Name | A 7Z 7M2844ST Comprised of 2 Washers and a Retainer with Balls |
| Bearing / Retainer Specialty Material | Stainless Steel |
