For sale is a Emerson Gearmotor Model 5BPB56PAA20B 3/4 HP; 3 PH; 90 V; 8 A; 48 KV; 1725 RPM DC motor speed controller Model: KBMD-240D (9370D) Input: 115/230 VAC - 50/60 Hz Output: 0-90/130 VDC Hytrol 4M gearbox believed to be 10:1 worm drive.