Precision Ball Bearings

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Super Precision Bearings are designed to meet demanding needs of special applications including high accuracy, high rotational speed and high rigidity. Optimal materials and internal design, give super precision bearings the highest level of accuracy. NSK offers several types of super precision bearing, including the ROBUST series.

Product Features and Benefits:Optimum design - Achieved by computer simulation of temperature rise resulting from ball skid.Long life - Range of material specification including high quality ultra clean steel, extra pure and advanced material SHX patented by NSK. High accuracy - Rolling elements with precision class P2 series available in standard steel and ceramic material. Low Noise - Quieter running high-speed spindle featuring Spinshot II Lubrication System. Extension range of cage material options, available in high speed design including - brass, engineered polymer and phenolic. Optional seals available within the standard ISO envelope. High rotational speed. Minimum friction and heat generation.Controlled rigidity

Bearing Number	Bore Dia	Width	Size
1.969 Inch \| 50 Millimeter x 4.331 Inch \| 110 Millimeter x 4.252 Inch \| 108 Millimeter TIMKEN 3MM310WI QUM Precision Ball Bearings	Flange Block	N/A	3.45
1.969 Inch \| 50 Millimeter x 4.331 Inch \| 110 Millimeter x 2.126 Inch \| 54 Millimeter TIMKEN 3MM310WI DUM Precision Ball Bearings	Bearings	N/A	1.1
1.969 Inch \| 50 Millimeter x 4.331 Inch \| 110 Millimeter x 2.126 Inch \| 54 Millimeter TIMKEN 3MM310WI DUL Precision Ball Bearings	Bearings	N/A	1.67
5.512 Inch \| 140 Millimeter x 8.268 Inch \| 210 Millimeter x 5.197 Inch \| 132 Millimeter TIMKEN 2MM9128WI QUH Precision Ball Bearings	Mounted Cartridge Units	N/A	8.172
1.772 Inch \| 45 Millimeter x 3.937 Inch \| 100 Millimeter x 1.969 Inch \| 50 Millimeter TIMKEN 3MM309WI DUL Precision Ball Bearings	Single Row Ball Bearing	N/A	0.463
1.575 Inch \| 40 Millimeter x 3.543 Inch \| 90 Millimeter x 1.811 Inch \| 46 Millimeter TIMKEN 3MM308WI DUM Precision Ball Bearings	Cylindrical Roller Bearing	N/A	0.154
5.512 Inch \| 140 Millimeter x 8.268 Inch \| 210 Millimeter x 2.598 Inch \| 66 Millimeter TIMKEN 2MM9128WI DUM Precision Ball Bearings	Bearings	N/A	0
1.378 Inch \| 35 Millimeter x 3.15 Inch \| 80 Millimeter x 1.654 Inch \| 42 Millimeter TIMKEN 3MM307WI DUM Precision Ball Bearings	Flange Block	N/A	15.89
1.378 Inch \| 35 Millimeter x 3.15 Inch \| 80 Millimeter x 1.654 Inch \| 42 Millimeter TIMKEN 3MM307WI DUL Precision Ball Bearings	Mounted Units & Inserts	N/A	28.141
5.118 Inch \| 130 Millimeter x 7.874 Inch \| 200 Millimeter x 2.598 Inch \| 66 Millimeter TIMKEN 2MM9126WIDULFS637 Precision Ball Bearings	Bearings	N/A	27.5
5.512 Inch \| 140 Millimeter x 8.268 Inch \| 210 Millimeter x 2.598 Inch \| 66 Millimeter TIMKEN 2MM9128WI DUH Precision Ball Bearings	Bearings	N/A	488.6
1.181 Inch \| 30 Millimeter x 2.835 Inch \| 72 Millimeter x 1.496 Inch \| 38 Millimeter TIMKEN 3MM306WI DUL Precision Ball Bearings	Single Row Ball Bearing	N/A	0.034