Extended inner ring ball bearings with a 0.625 in outside diameter and 0.25 in bore, rated for 159 lbf dynamic and 70 lbf static load, are available in a double-shielded configuration with MIL-PRF-23827C grease lubrication. The bearing is constructed from 440C stainless steel and meets ABEC 3 precision standards. Dimensions include an inner ring land diameter of 0.2260 in and outer ring land diameter of 0.1960 in, with a width of 0.364 in.
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-E6225M |
| Product Name | 0.25" Bore, 0.625" Outside diameter., Lubricated With Grease ( MIL-G-23827A) |
| Application | Pump |
| Material / Plating | Stainless Steel |
| Bearing Class | ABEC3 / Class 6 / P6; 440C Stainless. / ABEC 3 |
| Design Units | Inch |
| Bore | 0.2500 inch (6.350 mm) |
