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
1.25 Inch \| 31.75 Millimeter x 2.438 Inch \| 61.925 Millimeter x 1.25 Inch \| 31.75 Millimeter TIMKEN MM67EX DUC1 FS223 Precision Ball Bearings	282.5 mm	830 kN	180 mm	3 mm
1.25 Inch \| 31.75 Millimeter x 2.438 Inch \| 61.925 Millimeter x 1.25 Inch \| 31.75 Millimeter TIMKEN MM67EX 75 DU C1 Precision Ball Bearings	5070 N	8.00 mm	12.000 mm	28.0000 mm
1.25 Inch \| 31.75 Millimeter x 2.438 Inch \| 61.925 Millimeter x 1.25 Inch \| 31.75 Millimeter TIMKEN MM67EX 30DUC1 Precision Ball Bearings	17000 N	One Shield	62.0000 mm	16.00 mm
2.165 Inch \| 55 Millimeter x 3.543 Inch \| 90 Millimeter x 2.362 Inch \| 60 Millimeter TIMKEN MM55BS90 QUH Precision Ball Bearings	352000 N	230.000 mm	53.00 mm	1600 rpm
1.25 Inch \| 31.75 Millimeter x 2.438 Inch \| 61.925 Millimeter x 1.25 Inch \| 31.75 Millimeter TIMKEN MM67EX 10DUC1 Precision Ball Bearings	141 kg	HMV 142 E	HM 31/710	G 1/4
2.362 Inch \| 60 Millimeter x 4.724 Inch \| 120 Millimeter x 1.575 Inch \| 40 Millimeter TIMKEN MM60BS120 DUH Precision Ball Bearings	165 mm	7 °	104 mm	60 mm
2.362 Inch \| 60 Millimeter x 4.724 Inch \| 120 Millimeter x 3.15 Inch \| 80 Millimeter TIMKEN MM60BS120 QUH Precision Ball Bearings	1900 rpm	2.00 mm	215.0000 mm	118000 N
2.362 Inch \| 60 Millimeter x 4.724 Inch \| 120 Millimeter x 2.362 Inch \| 60 Millimeter TIMKEN MM60BS120 TBH Precision Ball Bearings	19500 N	19600 N	6300 rpm	85.000 mm
1.063 Inch \| 27 Millimeter x 2.25 Inch \| 57.15 Millimeter x 1 Inch \| 25.4 Millimeter TIMKEN MM57EX 50DUC1 Precision Ball Bearings	30.163 mm	1050 r/min	2 x SR-1617	44.45 mm
1.063 Inch \| 27 Millimeter x 2.25 Inch \| 57.15 Millimeter x 1 Inch \| 25.4 Millimeter TIMKEN MM57EX 10 DU C1 Precision Ball Bearings	8 N·m	57.5 mm	3 mm	2.5 mm
0.813 Inch \| 20.65 Millimeter x 2 Inch \| 50.8 Millimeter x 1 Inch \| 25.4 Millimeter TIMKEN MM50EX DU 10 C1 Precision Ball Bearings	60.000 mm	28.00 mm	1.50 mm	5300 rpm
2.165 Inch \| 55 Millimeter x 3.543 Inch \| 90 Millimeter x 1.181 Inch \| 30 Millimeter TIMKEN MM55BS90 DH Precision Ball Bearings	5.2 kN	11000 r/min	13000 r/min	21.6 kN