Roller Bearings

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A rolling-element bearing, also known as a rolling bearing,is a bearing which carries a load by placing rolling elements (such as balls or rollers) between two bearing rings called races. The relative motion of the races causes the rolling elements to roll with very little rolling resistance and with little sliding.
A rolling element rotary bearing uses a shaft in a much larger hole, and cylinders called "rollers" tightly fill the space between the shaft and hole. As the shaft turns, each roller acts as the logs in the above example. However, since the bearing is round, the rollers never fall out from under the load.

Rolling-element bearings have the advantage of a good trade-off between cost, size, weight, carrying capacity, durability, accuracy, friction, and so on. Other bearing designs are often better on one specific attribute, but worse in most other attributes, although fluid bearings can sometimes simultaneously outperform on carrying capacity, durability, accuracy, friction, rotation rate and sometimes cost. Only plain bearings are used as widely as rolling-element bearings. Common mechanical components where they are widely used are - automotive, industrial, marine, and aerospace applications. They are products of great necessity for modern technology. The rolling element bearing was developed from a firm foundation that was built over thousands of years.

Bearing Number Bore Dia Outer DIa Width Size
CONSOLIDATED BEARING NU-1008 M P/6 C/2 Roller Bearings 12500 lbf 0.03 in 3.54 in 1.44
CONSOLIDATED BEARING NU-1008 M P/5 Roller Bearings 22.0000 in 1.42 15.5 in Stamped Steel
CONSOLIDATED BEARING NU-1007E C/3 Roller Bearings 22 ~ 39 Bearings with Housin T-Shaped Not Provided
CONSOLIDATED BEARING NU-1007 M P/5 Roller Bearings 13.0 in 0.7 in Viton Single Lip 0.1 in
CONSOLIDATED BEARING NU-1007 M P/6 Roller Bearings 113000 9 Days Cast Iron 65
CONSOLIDATED BEARING N-222E P/6 C/3 Roller Bearings Cylindrical Bore Set Cast Iron 29400 SH33M
CONSOLIDATED BEARING N-222E M P/6 C/3 Roller Bearings 5.0 mm 620.000 mm 5.00 mm 429.0 mm
CONSOLIDATED BEARING NNU-4924-KMS P/5 C/2 Roller Bearings Radial CN (Normal Clearance Standard 25700
CONSOLIDATED BEARING NNU-4924 MS P/5 C/4 Roller Bearings Deep Groove Ball Bea 304 Stainless Steel 6 30 ~ 40
PCI HPDC-3.00 Roller Bearings Radial Metric System Flat LLU
BEARINGS LIMITED SB22207/C3W33SS Roller Bearings 5280 rpm CR - Phenolic Outer ISO P4S (ABEC 7/9) 7 Kg
BEARINGS LIMITED HK1012/Q Roller Bearings Standard MC3 Open Type 6