The A 7Y55-P3109 is a 440C stainless steel ball bearing with ABEC 3 tolerance, designed for low-friction rotation in rotating shaft applications. It has a 0.0937-inch bore, a 0.3125-inch outer diameter, and a 0.1094-inch width. The bearing is lubricated with oil meeting MIL-PRF-6085. It has a dynamic load rating of 60 lbf and a static load rating of 22.0 lbf. The bearing is available with no shield, single shield, or double shield configurations; this variant is unspecified but conforms to the P3109 series. Physical dimensions for inner and outer land diameters are provided for reference only and may vary. The part is part of a series of inch-sized ball bearings from SDP-SI.
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-P3109 |
| Product Name | 440C Stainless Steel/ABEC 3 Ball Bearing 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 |
