Flange-mounted needle roller bearing with a 1/4 inch bore, designed for radial loads up to 44000 rpm and a maximum load of 600 lbf. The bearing features a black oxide finished carbon steel housing and a drawn cup needle roller design, compliant with shaft requirements of Rc 58 to 64 hardness and a 16 µin. or finer finish. Operating temperature range is -22°F to +212°F. Overall length is 21/32 inch, overall width is 2.10 inches, mounting hole distance is 1.19 inches, flange height is 0.06 inch, and bore diameter nominal is 0.2500 inch with a minimum of 0.2495 inch.
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 | Needle Roller Bearings |
| Product Number | A 7Z56-BFM250N |
| Product Name | 0.250" Bore, Needle roller flange mounted pressbearings |
| Type | Self-aligning |
