A 7B 4-SP283210 is an oil-impregnated bronze self-lubricating plain bearing with an inner diameter of 0.878 inches, an outer diameter of 1.003 inches, and a length of 1.25 inches. It is designed for applications requiring low friction and maintenance-free operation. The part has a length tolerance of ±0.0050 inches, consistent with dimensions up to and including 1-1/2 inches. The inner and outer diameter tolerances are +0.0000 / -0.0015 inches, as specified for sizes up to and including 2-1/2 inches.
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 | Plain Bearings and Sleeve Bearings |
| Product Number | A 7B 4-SP283210 |
| Product Name | 0.878" I.D., 1.003" O.D. By 1.25" Wide Bronze Bearing |
| Bushing Type | Sleeve |
| Design Units | Inch |
| Bearing ID | 0.8780 inch (22.30 mm) |
