Ball Bearings

A ball bearing is a type of rolling-element bearing that uses balls to maintain the separation between the bearing races.

The purpose of a ball bearing is to reduce rotational friction and support radial and axial loads. It achieves this by using at least two races to contain the balls and transmit the loads through the balls. In most applications, one race is stationary and the other is attached to the rotating assembly (e.g., a hub or shaft). As one of the bearing races rotates it causes the balls to rotate as well. Because the balls are rolling they have a much lower coefficient of friction than if two flat surfaces were sliding against each other.

Ball bearings tend to have lower load capacity for their size than other kinds of rolling-element bearings due to the smaller contact area between the balls and races. However, they can tolerate some misalignment of the inner and outer races.

Bearing Number	Bore Dia	Outer DIa	Width	Size
NSK BA150-2 DF Ball Bearings	35 mm	2150 lbf	130 mm	1080 lbf
NSK BT340-1 DF Ball Bearings	6311nrc3-nsk	In Stock	0.02 KGS	55mm
NSK BA140-52 DF Ball Bearings	2.5500 in	Exceptional Bearing Protection, Rotating Applications, Pumps, Gearboxes, Motors, Energy Efficient Applications, Primary Metals Industry, Steel Industry, Aluminum Industry, Pulp and Paper Industry, Che	Labyrinth	3926904590.US
NSK B540-2 Ball Bearings	1.1875 in	2150 lbf	3.5625 in	1080 lbf
NSK 60/560X Ball Bearings	1.5000 in	64770 lbf	6.5 º	3.5000 in
NSK BT220-2A DF Ball Bearings	130 mm	670000 N	280 mm	Not Rated
NSK BT175-1 DB Ball Bearings	3/8 in	50000	7/16 in	Static 8000 / Dynamic 2000 (psi)
NSK B340-51X Ball Bearings	36 in	Center Pull	53-1/2 in	ZT2000, ZT3000
NSK BT240-1 DB Ball Bearings	NSK	BT240-1 DB	1 pcs	Negotiable
NSK B310-2 Ball Bearings	0.7500 in	2150 lbf	3.5469 in	1080 lbf
NSK 7048BX DF Ball Bearings	0.6250 in	Sealed	0.4375 in	Slotted
NSK 7028AX DF Ball Bearings	15/16 in	1780 lbf	3-1/8 in	Contact with Slinger