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Hurst Manufacturing


RA Series Reversible Permanent Magnet Synchronous motor REVERSIBLE PERMANENT MAGNET SYNCHRONOUS MOTORS:
RA Series

The rugged RA series is the largest direct drive motor of the Hurst permanent magnet synchronous line with dynamic torque ratings of 15 ounce-inches (standard) and 20 ounce-inches Hi-Torque. At 60Hz rotor speed is 300 RPM. Motors are available with a single or double ended shaft. Sleeve and ball bearings are available.

RA motors are designed to assure reliable starting in the desired direction and to eliminate unwanted reversal of rotation under load. Motors listed are 115 VAC at 60 Hz and require a capacitor.

Reversible AC Synchronous Motors
Model Part
Number		 Stock
Item		 Speed @
Output
Shaft
(rpm)		 Rated
Torque
(oz-in)		 Input
Power
(watts)		 Capacitor
Value
(mfd)		 Full Load
Temp.
Rise
(oC)		 Weight
(oz)		 Shaft
Bearing
RA 3901-001   300 15 11 1.0 37 26 SLEEVE
RA 3905-001   300 20 14.5 1.3 46 26 SLEEVE
RA 3911-001   300 15 11 1.0 37 26 BALL
RA 3915-001   300 20 14.5 1.3 46 26 BALL
Bold face listings indicate Hi-Torque rotor.