Precision Ball Bearings
National Precision Bearing specializes in precision inch and metric ball bearings for miniature, aircraft and industrial applications. Aviation instrument bearings and dental bearings are extensively stocked. ABEC 3, 5, and 7 grade miniature bearings are available to support your needs.
Precision ball bearings are used for high precision applications in a variety of markets, including aerospace, health, machine tool, robotics and general industry.Precision balls are used in critical aeronautical bearings, guidance system balls for space and military applications, precision valves, automotive bearings and other applications where higher precision is necessary. Precision balls are defined by grade: The lower the number of the grade, the more precision to which the ball is manufactured.
![3.543 Inch | 90 Millimeter x 5.512 Inch | 140 Millimeter x 0.945 Inch | 24 Millimeter TIMKEN 2MM9118WI Precision Ball Bearings](https://m.multimediosmaldoni.net/uploaded_images/d61600-3-543-inch-90-millimeter-x-5-512-inch-140-millimeter-x-0-945-inch-24-millimeter-timken-2mm9118wi-precision-ball-bearings.jpg)
![2.953 Inch | 75 Millimeter x 4.528 Inch | 115 Millimeter x 1.575 Inch | 40 Millimeter TIMKEN 3MMVC9115HXVVDUMFS637 Precision Ball Bearings](https://m.multimediosmaldoni.net/uploaded_images/d61594-2-953-inch-75-millimeter-x-4-528-inch-115-millimeter-x-1-575-inch-40-millimeter-timken-3mmvc9115hxvvdumfs637-precision-ball-bearings.jpg)
![2.953 Inch | 75 Millimeter x 4.528 Inch | 115 Millimeter x 1.575 Inch | 40 Millimeter TIMKEN 3MMVC9115HXVVDULFS637 Precision Ball Bearings](https://m.multimediosmaldoni.net/uploaded_images/d61594-2-953-inch-75-millimeter-x-4-528-inch-115-millimeter-x-1-575-inch-40-millimeter-timken-3mmvc9115hxvvdulfs637-precision-ball-bearings.jpg)
![2.953 Inch | 75 Millimeter x 4.528 Inch | 115 Millimeter x 0.787 Inch | 20 Millimeter TIMKEN 3MMVC9115HX SUM Precision Ball Bearings](https://m.multimediosmaldoni.net/uploaded_images/d61601-2-953-inch-75-millimeter-x-4-528-inch-115-millimeter-x-0-787-inch-20-millimeter-timken-3mmvc9115hx-sum-precision-ball-bearings.jpg)
![2.953 Inch | 75 Millimeter x 4.528 Inch | 115 Millimeter x 1.575 Inch | 40 Millimeter TIMKEN 3MMVC9115HX DUM Precision Ball Bearings](https://m.multimediosmaldoni.net/uploaded_images/d61597-2-953-inch-75-millimeter-x-4-528-inch-115-millimeter-x-1-575-inch-40-millimeter-timken-3mmvc9115hx-dum-precision-ball-bearings.jpg)