ABB chosen as top motor supplier by Control Magazine readers Readers of Control Magazine have named ABB as the top supplier to deliver the âbest technologyâ in the category of electric motors for 2019. Typical examples of frame numbers are 48, 56, 145, and 215. // -->, NEMA Knockout and Clearance Hole Diameter Machine Terminal Boxes, GD&T Training Geometric Dimensioning Tolerancing. To help, weâve created a bike size chart which should make finding your ideal frame size a little bit easier. The frame number relates to This name-plate shows a frame size 326T. '); So if you are using a standard NEMA frame motor, you can look up the right size shim for your application. NEMA (National Electrical Manufacturers Association) frame size refers to mounting only and has no direct bearing on the motor body diameter. a 26â³ wheel size is just your regular âclassicâ MTB wheel size. In addition to the standard numbering system for frames, there are some variations: C Designates a C flange/face mounted motor. BOX 2400 FORT SMITH, ARKANSAS 72902-2400 U.S.A. NEMA C-Face BA Dimensions The following are dimensional size charts for standard electric motor NEMA standard frames and configuration. This may vary from manufacturer to manufacturer. Esther says: July 27, 2020 at 8:48 am Dimensional data for 444T through 449TS frame sizes reflect the use of a top mounted conduit box with a cantilevered mounting arm.