Extended inner ring ball bearings with a 0.1562-inch bore and 0.3125-inch outside diameter are designed for low-friction rotation in precision applications. Available in ABEC 3 tolerance, this variant has a dynamic load rating of 33 lbf and a static load rating of 14 lbf. The bearing features a 0.1406-inch width and is supplied with MIL-PRF-6085A oil lubrication, as specified by the E suffix code. It is constructed from 440C stainless steel and may be shielded or unshielded depending on configuration, though the exact shield type for this model is not indicated. The part is dimensionally consistent with the 3115 series, with a bore tolerance of +0.0000/-0.0002 inch and outer diameter tolerance of +0.0000/-0.0003 inch.
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-E3115 |
| Product Name | 0.1562" 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 | 0.1562 inch (3.967 mm) |
