Precision ball bearings made of 440C stainless steel, designed for low-friction rotation in demanding applications, with an ABEC 7 tolerance grade and double-shielded design for oil lubrication per MIL-PRF-6085. The S9912Y-G1831FS1 variant corresponds to the 1831 series bearing, which has a 0.1875 inch bore, 0.3750 inch outer diameter, 0.1250 inch width, and a flange width of 0.023 inch. Load ratings are 81 lbf dynamic and 34 lbf static. The bearing features a flanged design with land diameters for inner and outer rings as specified for Fig. 3, with shielded construction to retain lubricant 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 | S9912Y-G1831FS1 |
| Product Name | 440C Stainless Steel/ABEC 7 Ball Bearing Lubricated with Oil (MIL-L-6085A) |
| Application | Pump |
| Material / Plating | Stainless Steel |
| Bearing Class | ABEC 7 / Class 4 / P4; 440C Stainless /ABEC 7 |
| Features | Flanged |
| Design Units | Inch |
