A 7Y55-ESS3112 is an ABEC 3 extended inner ring ball bearing with a 0.125 inch bore and 0.3125 inch outside diameter, featuring a double shield and lubricated with grease meeting MIL-PRF-23827C. It has a dynamic load rating of 59 lbf and a static load rating of 24 lbf, with a width of 0.176 inch. The bearing is constructed from 440C stainless steel and is designed for low-friction rotation in precision applications.
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 | Ball Bearings |
| Product Number | A 7Y55-ESS3112 |
| Product Name | 0.125" Bore, 0.3125" Outside diameter., Lubricated With Oil ( MIL-L-6085A) |
| Application | Pump |
| Material / Plating | Stainless Steel |
| Bearing Class | ABEC3 / Class 6 / P6; 440C Stainless. / ABEC 3 |
| Design Units | Inch |
| Bore | 0.1250 inch (3.175 mm) |
