Precision Ball Bearings

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Friction, or resistance to motion, is the result of the force acting between two surfaces as they slide against each other. Bearings reduce friction and provide smooth sliding contact between surfaces due to their material, shape or lubrication. Choosing the correct bearing for an application improves efficiency, extends bearing life at high speeds and avoids overheating. Bearings fall into two general categories: radial bearings that support rotating shafts and thrust bearings that support axial loads. Four classifications of bearing tolerances have been established, providing standards of precision for the correct application of ball bearings.

Bearing Number	Bore Dia	Outer DIa	Width	Size
6.299 Inch \| 160 Millimeter x 9.449 Inch \| 240 Millimeter x 5.984 Inch \| 152 Millimeter TIMKEN 2MM9132WI QUH Precision Ball Bearings	280 mm	21.27 kg	-20 °C	30 mm
6.299 Inch \| 160 Millimeter x 9.449 Inch \| 240 Millimeter x 2.992 Inch \| 76 Millimeter TIMKEN 2MM9132WI DUH Precision Ball Bearings	4.921 in	013992035349	10.7 in	Medium Series
1.378 Inch \| 35 Millimeter x 2.441 Inch \| 62 Millimeter x 1.102 Inch \| 28 Millimeter TIMKEN 3MM9107WI DUL Precision Ball Bearings	Deep Groove Ball Bea	88	Double	Block
1.378 Inch \| 35 Millimeter x 2.441 Inch \| 62 Millimeter x 1.102 Inch \| 28 Millimeter TIMKEN 3MM9107WI DUH Precision Ball Bearings	78 mm	100 °C	-20 °C	102 mm
1.181 Inch \| 30 Millimeter x 2.165 Inch \| 55 Millimeter x 1.535 Inch \| 39 Millimeter TIMKEN 3MM9106WI TUM Precision Ball Bearings	J7	Tapered hole adapter	Cast Iron	25
1.181 Inch \| 30 Millimeter x 2.165 Inch \| 55 Millimeter x 0.512 Inch \| 13 Millimeter TIMKEN 3MM9106WI SUH Precision Ball Bearings	Standard	ULTAGE type EA	Steel	Radial
5.906 Inch \| 150 Millimeter x 8.858 Inch \| 225 Millimeter x 2.756 Inch \| 70 Millimeter TIMKEN 2MM9130WIDULFS637 Precision Ball Bearings	Crowned Type	Provided	Provided	6
6.299 Inch \| 160 Millimeter x 9.449 Inch \| 240 Millimeter x 2.992 Inch \| 76 Millimeter TIMKEN 2MM9132WI DUM Precision Ball Bearings	Flat	6	E	No
1.181 Inch \| 30 Millimeter x 2.165 Inch \| 55 Millimeter x 1.535 Inch \| 39 Millimeter TIMKEN 3MM9106WI TUH Precision Ball Bearings	6	14	Compact Type	Deep Groove Ball Bea