Precision Ball Bearings

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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.

 

 

 

Bearing Number Bore Dia Outer DIa Width Size
3.937 Inch | 100 Millimeter x 5.512 Inch | 140 Millimeter x 0.787 Inch | 20 Millimeter TIMKEN 3MMV9320HX SUM Precision Ball Bearings Single Row | Spheric Cast Iron Flange Block Bearing Flanged
3.937 Inch | 100 Millimeter x 5.512 Inch | 140 Millimeter x 0.787 Inch | 20 Millimeter TIMKEN 3MMV9320HX SUL Precision Ball Bearings 3.228 Inch | 82 Mill M06110 Single Lip Contact AMI BEARINGS
3.937 Inch | 100 Millimeter x 5.512 Inch | 140 Millimeter x 1.575 Inch | 40 Millimeter TIMKEN 3MMV9320HX DUM Precision Ball Bearings 2-7/8" Nominal ENPRO INDUSTRIES Sleeve Bearings 46DU40
3.346 Inch | 85 Millimeter x 5.118 Inch | 130 Millimeter x 1.732 Inch | 44 Millimeter TIMKEN 2MM9117WIDULFS637 Precision Ball Bearings 0029176422027 No Polyamide C3-Loose
3.346 Inch | 85 Millimeter x 5.118 Inch | 130 Millimeter x 2.598 Inch | 66 Millimeter TIMKEN 2MM9117WI TUM Precision Ball Bearings NTN N/A 0.0 NTN
2.756 Inch | 70 Millimeter x 3.937 Inch | 100 Millimeter x 0.63 Inch | 16 Millimeter SKF 71914 CDGB/P4A Precision Ball Bearings Bearings M06110 N/A INA
3.346 Inch | 85 Millimeter x 5.118 Inch | 130 Millimeter x 2.598 Inch | 66 Millimeter TIMKEN 2MM9117WI TUL Precision Ball Bearings FAG BEARING Bearings B04311 0.0
3.346 Inch | 85 Millimeter x 5.118 Inch | 130 Millimeter x 2.598 Inch | 66 Millimeter TIMKEN 2MM9117WI TUH Precision Ball Bearings 1.215 Precision Ball Beari 50MM Bore; 90MM Outs Single Row Non-Fill
3.346 Inch | 85 Millimeter x 5.118 Inch | 130 Millimeter x 0.866 Inch | 22 Millimeter TIMKEN 2MM9117WI SUM Precision Ball Bearings DODGE 0782477081644 4.173 ABB MOTORS AND MECHA
0.591 Inch | 15 Millimeter x 1.102 Inch | 28 Millimeter x 0.551 Inch | 14 Millimeter TIMKEN 3MM9302WI DUH Precision Ball Bearings 0.0 REGAL BELOIT M06288 0662461367797
0.591 Inch | 15 Millimeter x 1.102 Inch | 28 Millimeter x 1.102 Inch | 28 Millimeter TIMKEN 3MM9302WI QUM Precision Ball Bearings PT INTERNATIONAL 1.589 0.0 M06110
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