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
5.512 Inch \| 140 Millimeter x 8.268 Inch \| 210 Millimeter x 3.898 Inch \| 99 Millimeter TIMKEN 2MMC9128WI TUL Precision Ball Bearings	TIMKEN	2MMC9128WI TUL	1 pcs	Negotiable
2.953 Inch \| 75 Millimeter x 4.134 Inch \| 105 Millimeter x 1.26 Inch \| 32 Millimeter TIMKEN 3MMC9315WI DUM Precision Ball Bearings	4.5000 in	5.13 in	18.3750 in	Non-Expansion Bearing (Fixed)
2.953 Inch \| 75 Millimeter x 4.134 Inch \| 105 Millimeter x 1.26 Inch \| 32 Millimeter TIMKEN 3MMC9315WI DUL Precision Ball Bearings	20 mm	Roller & Cage Assembly	26 mm	Open
5.512 Inch \| 140 Millimeter x 8.268 Inch \| 210 Millimeter x 3.898 Inch \| 99 Millimeter TIMKEN 2MMC9128WI TUH Precision Ball Bearings	10.192-6 in	P52	12-3/16 in	S-152, S-3052, S-52
5.512 Inch \| 140 Millimeter x 8.268 Inch \| 210 Millimeter x 1.299 Inch \| 33 Millimeter TIMKEN 2MMC9128WI SUL Precision Ball Bearings	1.9375 in	7940 lbf	4.3750 in	5220 lbf
5.512 Inch \| 140 Millimeter x 8.268 Inch \| 210 Millimeter x 1.299 Inch \| 33 Millimeter TIMKEN 2MMC9128WI SUM Precision Ball Bearings	0.5000 in	1-1/2 in	Round	7/8 in
2.756 Inch \| 70 Millimeter x 3.937 Inch \| 100 Millimeter x 2.52 Inch \| 64 Millimeter TIMKEN 3MMC9314WI QUM Precision Ball Bearings	1.9375 in	7980 lbf	3.5433 in	5220 lbf
5.512 Inch \| 140 Millimeter x 8.268 Inch \| 210 Millimeter x 1.299 Inch \| 33 Millimeter TIMKEN 2MMC9128WI SUH Precision Ball Bearings	1.3125 in	Contact with Flinger	4.3750 in	1.689 in
2.756 Inch \| 70 Millimeter x 3.937 Inch \| 100 Millimeter x 2.52 Inch \| 64 Millimeter TIMKEN 3MMC9314WI QUL Precision Ball Bearings	0.8125 in	1.3750 in	3.8906 in	52287 Steel/Black Oxide
5.512 Inch \| 140 Millimeter x 8.268 Inch \| 210 Millimeter x 5.197 Inch \| 132 Millimeter TIMKEN 2MMC9128WI QUM Precision Ball Bearings	1 in	Maximum of +800 °F	1-3/16 in	75000
2.756 Inch \| 70 Millimeter x 3.937 Inch \| 100 Millimeter x 1.26 Inch \| 32 Millimeter TIMKEN 3MMC9314WI DUM Precision Ball Bearings	75 mm	11600 kgf	184.1 mm	7840 kgf
5.512 Inch \| 140 Millimeter x 8.268 Inch \| 210 Millimeter x 5.197 Inch \| 132 Millimeter TIMKEN 2MMC9128WI QUL Precision Ball Bearings	4.0000 in	-65 to +250 °F	2.7500 in	104000 lbf, 59500 lbf