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	Outer DIa	Width	Size
1.378 Inch \| 35 Millimeter x 2.441 Inch \| 62 Millimeter x 1.102 Inch \| 28 Millimeter SKF 7007 CD/P4ADGB Precision Ball Bearings	3.0000 in	3.6300 in	12.6300 in	Expansion Bearing (Floating)
0.787 Inch \| 20 Millimeter x 1.654 Inch \| 42 Millimeter x 0.945 Inch \| 24 Millimeter SKF 7004 CD/P4ADGA Precision Ball Bearings	0.7500 in	4410 lbf	3.2500 in	2540 lbf
0.787 Inch \| 20 Millimeter x 1.457 Inch \| 37 Millimeter x 0.709 Inch \| 18 Millimeter SKF 71904 CD/P4ADGA Precision Ball Bearings	1.8125 in	7889 lb	3.5433 in	52100/Black Oxide
1.969 Inch \| 50 Millimeter x 3.15 Inch \| 80 Millimeter x 1.26 Inch \| 32 Millimeter SKF 7010 ACD/P4ADGA Precision Ball Bearings	1.5000 in	Non-Expansion Bearing (Fixed)	6.8750 in	Uncoated
2.362 Inch \| 60 Millimeter x 4.331 Inch \| 110 Millimeter x 1.732 Inch \| 44 Millimeter SKF 7212 CD/HCP4ADGA Precision Ball Bearings	0.8750 in	2680 lbf	2.7500 in	1420 lbf
4.331 Inch \| 110 Millimeter x 6.693 Inch \| 170 Millimeter x 3.307 Inch \| 84 Millimeter TIMKEN 2MM9122WI TUM Precision Ball Bearings	35 mm	2640 kgf	92 mm	1570 kgf
4.724 Inch \| 120 Millimeter x 7.087 Inch \| 180 Millimeter x 2.205 Inch \| 56 Millimeter TIMKEN 2MM9124WI DUH Precision Ball Bearings	0.5000 in	1-1/2 in	Round	7/8 in
4.331 Inch \| 110 Millimeter x 6.693 Inch \| 170 Millimeter x 2.205 Inch \| 56 Millimeter TIMKEN 2MM9122WIDULFS637 Precision Ball Bearings	1.9375 in	5220 lb	4.3750 in	Labyrinth
4.331 Inch \| 110 Millimeter x 6.693 Inch \| 170 Millimeter x 3.307 Inch \| 84 Millimeter TIMKEN 2MM9122WI TUL Precision Ball Bearings	2.5000 in	9000 lbf	6.5000 in	Contact with Flinger
4.331 Inch \| 110 Millimeter x 6.693 Inch \| 170 Millimeter x 4.409 Inch \| 112 Millimeter TIMKEN 2MM9122WI QUM Precision Ball Bearings	30 mm	1830 kgf	111 mm	Contact with Flinger
4.331 Inch \| 110 Millimeter x 6.693 Inch \| 170 Millimeter x 1.102 Inch \| 28 Millimeter TIMKEN 2MM9122WI SUM Precision Ball Bearings	2.7500 in	10800 lbf	7.4844 in	Contact with Flinger
4.331 Inch \| 110 Millimeter x 6.693 Inch \| 170 Millimeter x 1.102 Inch \| 28 Millimeter TIMKEN 2MM9122WI SUH Precision Ball Bearings	Two-Bolt Base	1-3/8 in	0.8750 in	-20 to +220 °F