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
1.378 Inch \| 35 Millimeter x 2.835 Inch \| 72 Millimeter x 1.339 Inch \| 34 Millimeter TIMKEN 3MM207WI DUM Precision Ball Bearings	h8	0.05	20 mm	16 mm
1.575 Inch \| 40 Millimeter x 3.15 Inch \| 80 Millimeter x 1.417 Inch \| 36 Millimeter TIMKEN 3MM208WI DUL Precision Ball Bearings	1/4 NPT	SNW 15x2.1/2	130 mm	3.175 mm
1.378 Inch \| 35 Millimeter x 2.835 Inch \| 72 Millimeter x 2.677 Inch \| 68 Millimeter TIMKEN 3MM207WI QUM Precision Ball Bearings	14.3 mm	1.30 kg	35 mm	34.1 mm
1.575 Inch \| 40 Millimeter x 3.15 Inch \| 80 Millimeter x 1.417 Inch \| 36 Millimeter TIMKEN 3MM208WI DUH Precision Ball Bearings	1077 mm	154 mm	38 mm	305 kg
1.378 Inch \| 35 Millimeter x 2.835 Inch \| 72 Millimeter x 1.339 Inch \| 34 Millimeter TIMKEN 3MM207WI DUH Precision Ball Bearings	173 N/µm	0.68	75 mm	49.6 mm
1.378 Inch \| 35 Millimeter x 2.835 Inch \| 72 Millimeter x 0.669 Inch \| 17 Millimeter TIMKEN 3MM207WI SUM Precision Ball Bearings	535 kg	7.5 mm	727 mm	850 r/min
1.378 Inch \| 35 Millimeter x 2.835 Inch \| 72 Millimeter x 0.669 Inch \| 17 Millimeter TIMKEN 3MM207WI SUL Precision Ball Bearings	200.0000 mm	310000 N	76.00 mm	1900 rpm
1.181 Inch \| 30 Millimeter x 2.441 Inch \| 62 Millimeter x 1.89 Inch \| 48 Millimeter TIMKEN 3MM206WI TUL Precision Ball Bearings	59400 N	45.000 mm	5700 rpm	1.50 mm
1.772 Inch \| 45 Millimeter x 2.677 Inch \| 68 Millimeter x 0.472 Inch \| 12 Millimeter TIMKEN 3MM9309WI SUL Precision Ball Bearings	1690 kN	240 mm	11.1 mm	800 min-1
1.181 Inch \| 30 Millimeter x 2.441 Inch \| 62 Millimeter x 1.89 Inch \| 48 Millimeter TIMKEN 3MM206WI TUM Precision Ball Bearings	2800 r/min	2400 r/min	76.5 kN	28.5 kN
1.378 Inch \| 35 Millimeter x 2.835 Inch \| 72 Millimeter x 1.339 Inch \| 34 Millimeter TIMKEN 3MM207WI DUL Precision Ball Bearings	3320 N	0.30 mm	38FS1	8.000 mm
1.181 Inch \| 30 Millimeter x 2.441 Inch \| 62 Millimeter x 0.63 Inch \| 16 Millimeter TIMKEN 3MM206WI SUM Precision Ball Bearings	14 mm	1/4-28 SAE-LT	101.5 mm	115.9 mm