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Roller Bearings

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.

EBC B-47  Roller Bearings
EBC B-47 Roller Bearings
22 mm
50
BEARINGS LIMITED B-2012-OH  Roller Bearings
BEARINGS LIMITED B-2012-OH Roller Bearings
0.0118 in
Click here
BEARINGS LIMITED 33205  Roller Bearings
BEARINGS LIMITED 33205 Roller Bearings
7-1/2 in
44400 lb
BEARINGS LIMITED 22222 MC3W33  Roller Bearings
BEARINGS LIMITED 22222 MC3W33 Roller Bearings
R154.51
VKBA 3549
BEARINGS LIMITED 33018 ASSEMBLY  Roller Bearings
BEARINGS LIMITED 33018 ASSEMBLY Roller Bearings
Straight
300 mm
NTN J-281256  Roller Bearings
NTN J-281256 Roller Bearings
90 mm
Phenolic Resin
NTN J-241648  Roller Bearings
NTN J-241648 Roller Bearings
KJ40X47X28.8
47,000
BEARINGS LIMITED HK1412  Roller Bearings
BEARINGS LIMITED HK1412 Roller Bearings
310x200x109
310 mm
BEARINGS LIMITED 6218 2RSNR  Roller Bearings
BEARINGS LIMITED 6218 2RSNR Roller Bearings
3200 r/min
1,05 Kg
BEARINGS LIMITED 6205 2RS NR C3  Roller Bearings
BEARINGS LIMITED 6205 2RS NR C3 Roller Bearings
33
42.00
PCI CTR-1.25-SS  Roller Bearings
PCI CTR-1.25-SS Roller Bearings
110
22 mm
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