Precision Ball Bearings

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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.

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.

Bearing Number	Bore Dia	Outer DIa	Width	Size
2.953 Inch \| 75 Millimeter x 4.528 Inch \| 115 Millimeter x 1.575 Inch \| 40 Millimeter TIMKEN 2MMC9115WI DUH Precision Ball Bearings	100 °C	19 mm	10 mm	19.1 mm
2.953 Inch \| 75 Millimeter x 4.528 Inch \| 115 Millimeter x 3.15 Inch \| 80 Millimeter TIMKEN 3MMC9115WI QUH Precision Ball Bearings	EX311-35G2T04	50 mm	-40 °C	5.54 kg
2.953 Inch \| 75 Millimeter x 4.528 Inch \| 115 Millimeter x 1.575 Inch \| 40 Millimeter TIMKEN 3MMC9115WI DUM Precision Ball Bearings	54.5 mm	20.8 kN	192 mm	48 mm
2.756 Inch \| 70 Millimeter x 4.331 Inch \| 110 Millimeter x 0.787 Inch \| 20 Millimeter TIMKEN 3MMC9114WI SUH Precision Ball Bearings	46.8 mm	6.2 mm	8 Nm	6 mm
2.756 Inch \| 70 Millimeter x 4.331 Inch \| 110 Millimeter x 3.15 Inch \| 80 Millimeter TIMKEN 3MMC9114WI QUM Precision Ball Bearings	20.8 kN	UC209-28G2L3	23 mm	37 mm
2.559 Inch \| 65 Millimeter x 3.937 Inch \| 100 Millimeter x 0.709 Inch \| 18 Millimeter TIMKEN 3MMC9113WI SUM Precision Ball Bearings	7.5 mm	11,5mm	70 mm	19 mm
3.543 Inch \| 90 Millimeter x 5.512 Inch \| 140 Millimeter x 2.835 Inch \| 72 Millimeter TIMKEN 2MMC9118WI TUM Precision Ball Bearings	M8x1	11.2 kN	100 °C	0.41 kg
3.543 Inch \| 90 Millimeter x 5.512 Inch \| 140 Millimeter x 0.945 Inch \| 24 Millimeter TIMKEN 2MMC9118WI SUL Precision Ball Bearings	-20 °C	32.4 mm	16 mm	94 mm
3.937 Inch \| 100 Millimeter x 5.906 Inch \| 150 Millimeter x 2.835 Inch \| 72 Millimeter TIMKEN 2/3MM9120WI TM Precision Ball Bearings	46 mm	US203G2T20	60 mm	25.5 mm
2.756 Inch \| 70 Millimeter x 4.331 Inch \| 110 Millimeter x 1.575 Inch \| 40 Millimeter TIMKEN 3MMC9114WI DUH Precision Ball Bearings	0.11 kN	10 mm	21,000 rpm	0.6 mm
3.543 Inch \| 90 Millimeter x 5.512 Inch \| 140 Millimeter x 0.945 Inch \| 24 Millimeter TIMKEN 2MMC9118WI SUM Precision Ball Bearings	391.8 kN	289 mm	4 mm	355 mm
2.559 Inch \| 65 Millimeter x 3.937 Inch \| 100 Millimeter x 2.835 Inch \| 72 Millimeter TIMKEN 3MMC9113WI QUM Precision Ball Bearings	8482.50.00.00	0.95 kg	N/A	Single Row