The BSNPLNMMB455020 is a split-type plain sleeve bearing with a 45 mm bore, 50 mm outer diameter, and 20 mm length, designed for maintenance-free operation. It features a carbon steel backing with a composite liner of sintered bronze and PTFE, enabling self-lubrication. The bearing is designed for installation in a housing with a nominal bore tolerance of ±0.25 mm and supports shaft diameters of 44.950 mm nominal and 45.000 mm installed. Its split design accommodates easy assembly around shafts.
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 | BSNPLNMMB455020 |
| Product Name | Self Lubricating 45mm ID, 50mm OD Split Type Plain Sleeve Bearing |
| Bushing Type | Sleeve; Flanged |
| Design Units | Metric |
| Bearing ID | 1.7717 inch (45.00 mm) |
| Bearing OD | 1.9685 inch (50.00 mm) |
