The S99LBC-025075S is a closed-type linear ball bearing with a 0.2500 inch bore, 0.5000 inch outer diameter, and 0.7500 inch length, featuring four ball circuits and sealed ends. The sleeve and balls are made of AISI 52100 steel, and the retainer is Duracon M90. It has a dynamic load rating of 46 lbf and a static load rating of 60 lbf. The bore tolerance is +.0000/-.00025 inch, and the outer diameter tolerance is +.0000/-.00045 inch. The bearing supports high positioning accuracy, low friction, 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 | S99LBC-025075S |
| Product Name | 0.25" bore, 4 circuits Closed type linear ball bearings |
| Special Bearing Materials | Duracon M90 |
