Baldor Electric Company: Motors with internal bearing protection ring

The additional 98 ratings expands the existing 4 pole line of TEFC & ODP designs through 100 HP and adds 2 and 6 pole models, as well.  Additionally, 575V TEFC motors have been added, 1 to 50 HP, as well as TEFC & ODP close-coupled pump motors.

While most shaft ground applications utilize a shaft ground on the outside of the motor, the Baldor•Reliance Super-E has the grounding ring factory installed internally on the motor. This internal design minimizes exposure to the outside elements and keeps the grounding ring from being damaged by external forces.  Useful for general purpose applications using an adjustable speed drive.