A closed-type linear ball bearing with a 20 mm bore, five ball circuits, and seals at both ends, constructed with AISI 52100 steel sleeves and balls and a Duracon M90 retainer. It has an outer diameter of 32 mm, a length of 42 mm, and a groove width of 30.5 mm. The bearing supports a dynamic load capacity of 882 N and a static load capacity of 1370 N. All dimensions and tolerances comply with specified metric ranges for bore, outer diameter, length, and groove dimensions. The part is designed for low friction, high positioning accuracy, high load capacity, quiet movement, and long travel life.
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 | Linear Bearings |
| Product Number | S99LBCM020045S |
| Product Name | 20MM BORE, 5 CIRCUITS Closed TYPE, LINEAR BALL BEARING |
| Special Bearing Materials | Duracon M90 |
