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.Oligh rotational speed.Minimum friction and heat generation.Controlled rigidity

Bearing Number	Bore Dia	Outer DIa	Width	Size
2.559 Inch \| 65 Millimeter x 5.512 Inch \| 140 Millimeter x 1.299 Inch \| 33 Millimeter TIMKEN 2MM313WI Precision Ball Bearings	Powder Coated	FB22400	Three-Bolt	5.1250 in
2.165 Inch \| 55 Millimeter x 4.724 Inch \| 120 Millimeter x 1.142 Inch \| 29 Millimeter TIMKEN 2MM311WI Precision Ball Bearings	Powder Coated	6-1/4 in	10-7/8 in	Clearance/Non-C
1.969 Inch \| 50 Millimeter x 4.331 Inch \| 110 Millimeter x 1.063 Inch \| 27 Millimeter TIMKEN 2MM310WI Precision Ball Bearings	46800 lb	6.0156 in	ANSI/ABMA STD 9	Cast Iron
3.15 Inch \| 80 Millimeter x 4.921 Inch \| 125 Millimeter x 3.465 Inch \| 88 Millimeter TIMKEN 3MM9116WI QUM Precision Ball Bearings	UCNTPL200MZ20RFCW	Side Mount	PBT Thermoplastic	Dual Lip with Slinge
3.15 Inch \| 80 Millimeter x 4.921 Inch \| 125 Millimeter x 3.465 Inch \| 88 Millimeter TIMKEN 3MM9116WI QUL Precision Ball Bearings	6.5000 in	Non-Expansion Bearin	Standard Duty	Lubrication Fitting
2.953 Inch \| 75 Millimeter x 4.528 Inch \| 115 Millimeter x 2.362 Inch \| 60 Millimeter TIMKEN 3MM9115WI TUH Precision Ball Bearings	3-1/4 in	3.2500 in	279000 lbf	HH228310, HH228318
6.693 Inch \| 170 Millimeter x 10.236 Inch \| 260 Millimeter x 4.961 Inch \| 126 Millimeter TIMKEN 2MM9134WI TUM Precision Ball Bearings	3 in	None	6000 psi	13 in
2.953 Inch \| 75 Millimeter x 4.528 Inch \| 115 Millimeter x 2.362 Inch \| 60 Millimeter TIMKEN 3MM9115WI TUM Precision Ball Bearings	2.953 Inch \| 75 Millimeter x 4.528 Inch \| 115 Millimeter x 2.362 Inch \| 60 Millimeter	-	-	-
3.15 Inch \| 80 Millimeter x 4.921 Inch \| 125 Millimeter x 1.732 Inch \| 44 Millimeter TIMKEN 3MM9116WI DUM Precision Ball Bearings	Agriculture	Single Row Non-Fill	16 mm	4800 lb
2.953 Inch \| 75 Millimeter x 4.528 Inch \| 115 Millimeter x 2.362 Inch \| 60 Millimeter TIMKEN 3MM9115WI TUL Precision Ball Bearings	Cast Iron	RCJTY	45 mm	Round
2.953 Inch \| 75 Millimeter x 4.528 Inch \| 115 Millimeter x 0.787 Inch \| 20 Millimeter TIMKEN 3MM9115WI SUM Precision Ball Bearings	Steel	137	4500	4.75
3.15 Inch \| 80 Millimeter x 4.921 Inch \| 125 Millimeter x 1.732 Inch \| 44 Millimeter TIMKEN 3MM9116WI DUH Precision Ball Bearings	3-15/16 in	4-1/16 in	Steel	2750 RPM