Precision Ball Bearings

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Precision ball bearings are used for high precision applications in a variety of markets, including aerospace, health, machine tool, robotics and general industry.Ball bearings with shields or seals for protection can be lubricated to last for the operating life. Sometimes ball bearings are also called “deep groove ball bearings.

Precision balls are used in critical aeronautical bearings, guidance system balls for space and military applications, precision valves, automotive bearings and other applications where higher precision is necessary. Precision balls are defined by grade: The lower the number of the grade, the more precision to which the ball is manufactured.

Bearing Number	Bore Dia	Outer DIa	Width	Size
1.575 Inch \| 40 Millimeter x 3.543 Inch \| 90 Millimeter x 2.362 Inch \| 60 Millimeter TIMKEN MM40BS90 QUH Precision Ball Bearings	1360 mm	897 mm	2900 kg	5 mm
1.5 Inch \| 38.1 Millimeter x 2.835 Inch \| 72.009 Millimeter x 2.5 Inch \| 63.5 Millimeter TIMKEN MM9310WI2H QUH FS737 Precision Ball Bearings	9 mm	23.2 kg	74 mm	280 mm
1.5 Inch \| 38.1 Millimeter x 2.835 Inch \| 72.009 Millimeter x 1.25 Inch \| 31.75 Millimeter TIMKEN MM9310WI 2H DUH Precision Ball Bearings	51000 N	23.00 mm	1.00 mm	4500 rpm
0.939 Inch \| 23.851 Millimeter x 2.441 Inch \| 62.001 Millimeter x 2.5 Inch \| 63.5 Millimeter TIMKEN MM9308WI 2H QUH Precision Ball Bearings	10 kg	8	230.327 mm	HMVC 36E
0.787 Inch \| 19.99 Millimeter x 1.85 Inch \| 46.99 Millimeter x 2.5 Inch \| 63.5 Millimeter TIMKEN MM9306WI 2H QUH Precision Ball Bearings	S1938	0.9380 in	1270 lbf	1990 lbf
0.787 Inch \| 19.99 Millimeter x 1.85 Inch \| 46.99 Millimeter x 1.25 Inch \| 31.75 Millimeter TIMKEN MM9306WI 2H DUH Precision Ball Bearings	140 mm	590 mm	360 mm	2 x TSD 3048 U
1.181 Inch \| 30 Millimeter x 1.85 Inch \| 47 Millimeter x 0.354 Inch \| 9 Millimeter TIMKEN MM9306K Precision Ball Bearings	4CC	12.414 mm	1 mm	1 mm
0.787 Inch \| 20 Millimeter x 1.457 Inch \| 37 Millimeter x 0.354 Inch \| 9 Millimeter TIMKEN MM9304K Precision Ball Bearings	360 min-1	22.3 mm	700 mm	6 mm
0.984 Inch \| 25 Millimeter x 1.654 Inch \| 42 Millimeter x 0.354 Inch \| 9 Millimeter TIMKEN MM9305K Precision Ball Bearings	82.55 mm	3400 r/min	76.2 mm	65.484 mm
1.75 Inch \| 44.45 Millimeter x 3.438 Inch \| 87.325 Millimeter x 1.625 Inch \| 41.275 Millimeter TIMKEN MM92EX 250 DU C1 Precision Ball Bearings	48.00 mm	80.000 mm	4000 rpm	2.50 mm
1.75 Inch \| 44.45 Millimeter x 3.438 Inch \| 87.325 Millimeter x 1.625 Inch \| 41.275 Millimeter TIMKEN MM92EX 150 DU C1 Precision Ball Bearings	45.244 mm	2 x 3/4-10 UNC	231.775 mm	239.316 mm
1.75 Inch \| 44.45 Millimeter x 3.438 Inch \| 87.325 Millimeter x 1.625 Inch \| 41.275 Millimeter TIMKEN MM92EX 20 DU C1 Precision Ball Bearings	980 kN	179 mm	125 mm	1220 kN