Shaft Grounding Ring Compatible Motor Frame 364T 365T 444TS 445TS 447TS 449TS For Motor Frame Type NEMA For Nominal Shaft Diameter 2 3/8 in Material Aluminum Ring Construction One Piece Ring Outside Diameter 3 3/4 in System of Measurement Inch Features Designed to Help Extend Motor Life by Safely Diverting Harmful VFD