A 7Y55-E5031M is an extended inner ring ball bearing with a 0.3125 inch bore and 0.5000 inch outside diameter, designed for low-friction rotation in mechanical systems. It features a 0.1875 inch width and is lubricated with grease meeting MIL-PRF-23827C. The bearing has a dynamic load rating of 56 lbf and a static load rating of 31 lbf, constructed from 440C stainless steel, and conforms to ABEC 3 tolerance standards. The part uses a double-shielded design to retain lubrication and exclude contaminants.
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-E5031M |
| Product Name | 0.3125" Bore, 0.5" 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 | 0.3125 inch (7.937 mm) |
