Precision Ball Bearings

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Miniature Precision Ball Bearings for Specialized Industries. Miniature Precision Bearings are identified by having an internal diameter of less than 3/8 inches (9.5 mm) while still containing the same components used in standard radial ball bearings.Higher precision bearings are available in ball bearings, angular contact ball bearing, ball screw support bearings, cylindrical roller bearings, spherical roller bearings and tapered roller bearings. The most common high precision bearing is the angular contact bearing, also referred to as a spindle bearing.

Precision Ball Bearings . Shielded. Sealed. For greater accuracy and higher speeds, these bearings are made to tighter tolerances than standard ball bearings. Shielded bearings dissipate heat more efficiently than sealed bearings. Sealed bearings block out dust and other contaminants better than shielded bearings.

Bearing Number	Bore Dia	Outer DIa	Width	Size
3.346 Inch \| 85 Millimeter x 4.724 Inch \| 120 Millimeter x 2.835 Inch \| 72 Millimeter TIMKEN 2MMC9317WI QUL Precision Ball Bearings	115 mm	23124	79 mm	1:12
3.346 Inch \| 85 Millimeter x 4.724 Inch \| 120 Millimeter x 1.417 Inch \| 36 Millimeter TIMKEN 2MMC9317WI DUL Precision Ball Bearings	1.0000 in	2680 lbf	3.0000 in	1420 lbf
3.15 Inch \| 80 Millimeter x 4.331 Inch \| 110 Millimeter x 2.52 Inch \| 64 Millimeter TIMKEN 2MMC9316WI QUM Precision Ball Bearings	1 in	50000	1-5/16 in	Static 8000 / Dynamic 2000 (psi)
3.15 Inch \| 80 Millimeter x 4.331 Inch \| 110 Millimeter x 2.52 Inch \| 64 Millimeter TIMKEN 2MMC9316WI QUL Precision Ball Bearings	40 mm	2990 kgf	102 mm	1830 kgf
3.346 Inch \| 85 Millimeter x 4.724 Inch \| 120 Millimeter x 2.835 Inch \| 72 Millimeter TIMKEN 2MMC9317WIQULFS934 Precision Ball Bearings	30 mm	2000 kgf	83 mm	1150 kgf
3.15 Inch \| 80 Millimeter x 4.331 Inch \| 110 Millimeter x 1.26 Inch \| 32 Millimeter TIMKEN 2MMC9316WI DUM Precision Ball Bearings	1.3125 in	2150 lbf	5.1250 in	1080 lbf
3.15 Inch \| 80 Millimeter x 4.331 Inch \| 110 Millimeter x 1.26 Inch \| 32 Millimeter TIMKEN 2MMC9316WI DUL Precision Ball Bearings	15 mm	Powdered Metal SAE 841 Bronze	23 mm	10 to 220 ºC
2.953 Inch \| 75 Millimeter x 4.134 Inch \| 105 Millimeter x 2.52 Inch \| 64 Millimeter TIMKEN 2MMC9315WI QUM Precision Ball Bearings	1.5625 in	-65 to +250 °F	0.9375 in	45000 lbf, 25800 lbf
2.953 Inch \| 75 Millimeter x 4.134 Inch \| 105 Millimeter x 2.52 Inch \| 64 Millimeter TIMKEN 2MMC9315WI QUL Precision Ball Bearings	2.5000 in	7190 lbf	Cast Iron - Nickel Protection	PF1-1/2
2.953 Inch \| 75 Millimeter x 4.134 Inch \| 105 Millimeter x 1.26 Inch \| 32 Millimeter TIMKEN 2MMC9315WI DUM Precision Ball Bearings	2.1875 in	6400 lb	7.2500 in	Contact Seal
2.756 Inch \| 70 Millimeter x 3.937 Inch \| 100 Millimeter x 1.26 Inch \| 32 Millimeter TIMKEN 2MMC9314WIDULFS934 Precision Ball Bearings	2.1875 in	Cast Iron	18 in	Setscrew
2.756 Inch \| 70 Millimeter x 3.937 Inch \| 100 Millimeter x 2.52 Inch \| 64 Millimeter TIMKEN 2MMC9314WI QUM Precision Ball Bearings	0.7500 in	2150 lbf	3.5469 in	1080 lbf