Precision Ball Bearings
National Precision Bearing specializes in precision bearing solutions for aerospace, defense, medical, and industrial applications. NPB stocks deep groove ball bearings, angular contact bearings, miniature bearings, medical bearings, aviation instrument bearings, dental bearings, spherical bearings, rod end bearings, airframe control bearings, bushings, hydraulic cylinder bearings, needle bearings, double row bearings, ABEC 1, 3, 5, 7, 9 bearings, plastic bearings, DFARs Compliant Bearings, high-speed bearings, thin section bearings, thrust bearings, tapered roller bearings, stainless steel bearings, ceramic bearings, inch and metric bearings, fractured race spherical bearings, plain bearings, full compliment bearings, and bearing installation tools. In addition to bearings, bushings and installation tools, National Precision Bearing also offers relubrication and packaging services in a ISO Class 6 (Class 1000) cleanroom.
![3.346 Inch | 85 Millimeter x 5.118 Inch | 130 Millimeter x 3.465 Inch | 88 Millimeter TIMKEN 3MMC9117WI QUH Precision Ball Bearings](https://m.themultisportsclub.com/uploaded_images/d67678-3-346-inch-85-millimeter-x-5-118-inch-130-millimeter-x-3-465-inch-88-millimeter-timken-3mmc9117wi-quh-precision-ball-bearings.jpg)
![3.346 Inch | 85 Millimeter x 5.118 Inch | 130 Millimeter x 1.732 Inch | 44 Millimeter TIMKEN 3MMC9117WI DUM Precision Ball Bearings](https://m.themultisportsclub.com/uploaded_images/d67681-3-346-inch-85-millimeter-x-5-118-inch-130-millimeter-x-1-732-inch-44-millimeter-timken-3mmc9117wi-dum-precision-ball-bearings.jpg)
- 3.346 Inch | 85 Millimeter x 5.118 Inch | 130 Millimeter x 1.732 Inch | 44 Millimeter TIMKEN 3MMC9117WI DUM Precision Ball Bearings
- Double Row | Single
- QM INDUSTRIES
![3.346 Inch | 85 Millimeter x 5.118 Inch | 130 Millimeter x 1.732 Inch | 44 Millimeter TIMKEN 3MMC9117WI DUH Precision Ball Bearings](https://m.themultisportsclub.com/uploaded_images/d67677-3-346-inch-85-millimeter-x-5-118-inch-130-millimeter-x-1-732-inch-44-millimeter-timken-3mmc9117wi-duh-precision-ball-bearings.jpg)
![2.953 Inch | 75 Millimeter x 4.528 Inch | 115 Millimeter x 2.362 Inch | 60 Millimeter TIMKEN 3MMC9115WI TUM Precision Ball Bearings](https://m.themultisportsclub.com/uploaded_images/d67686-2-953-inch-75-millimeter-x-4-528-inch-115-millimeter-x-2-362-inch-60-millimeter-timken-3mmc9115wi-tum-precision-ball-bearings.jpg)
![4.331 Inch | 110 Millimeter x 6.693 Inch | 170 Millimeter x 2.205 Inch | 56 Millimeter TIMKEN 2MMC9122WI DUM Precision Ball Bearings](https://m.themultisportsclub.com/uploaded_images/d67685-4-331-inch-110-millimeter-x-6-693-inch-170-millimeter-x-2-205-inch-56-millimeter-timken-2mmc9122wi-dum-precision-ball-bearings.jpg)
![4.331 Inch | 110 Millimeter x 6.693 Inch | 170 Millimeter x 2.205 Inch | 56 Millimeter TIMKEN 2MMC9122WI DUH Precision Ball Bearings](https://m.themultisportsclub.com/uploaded_images/d67680-4-331-inch-110-millimeter-x-6-693-inch-170-millimeter-x-2-205-inch-56-millimeter-timken-2mmc9122wi-duh-precision-ball-bearings.jpg)
![4.134 Inch | 105 Millimeter x 6.299 Inch | 160 Millimeter x 3.071 Inch | 78 Millimeter TIMKEN 2MMC9121WI TUM Precision Ball Bearings](https://m.themultisportsclub.com/uploaded_images/d67681-4-134-inch-105-millimeter-x-6-299-inch-160-millimeter-x-3-071-inch-78-millimeter-timken-2mmc9121wi-tum-precision-ball-bearings.jpg)
- 4.134 Inch | 105 Millimeter x 6.299 Inch | 160 Millimeter x 3.071 Inch | 78 Millimeter TIMKEN 2MMC9121WI TUM Precision Ball Bearings
- 10.81 Inch | 274.574
- 4 Inch | 101.6 Milli
![4.134 Inch | 105 Millimeter x 6.299 Inch | 160 Millimeter x 3.071 Inch | 78 Millimeter TIMKEN 2MMC9121WI TUL Precision Ball Bearings](https://m.themultisportsclub.com/uploaded_images/d67686-4-134-inch-105-millimeter-x-6-299-inch-160-millimeter-x-3-071-inch-78-millimeter-timken-2mmc9121wi-tul-precision-ball-bearings.jpg)