49mm (A, AB) Geared Synchronous Motor0 pages

SYNCHRONOUS MOTOR FAMILY
Series 49mm (A, AB) Geared Synchronous Motor
Output Speed:
Torque Range:
Insulation Class:
Lead Wire:
Operation Ambient
Temp:
Gear Unit:
Shaft Bearing:

.3 to 300 RPM
Up to 150 oz-in [1059 mN-m]
Class A (105°C)
4 leads 22AWG (approx. 9 inches [228.6 mm])
-10°C to +40°C (approx.)

Zinc Die Cast - AGMA 7 Standard with hardened steel gears
Sleeve Bearing
E37163, Component Time Indicating and Recording Appliances,
Recognition:
115Vac 60 Hz Standard Rotor
Card No. 42576, Motors and Generators,
Certification:
115 Vac, 60 Hz, Standard Rotor, 3 watts max.
Capacitor is required for operation. Capacitor supplied with 115 Vac motors.
Note: Typical data subject to change without notification

These motors are among our most popular synchronous motors and are designed for heavy duty
usage. The A and AB motors are widely used in computer peripheral equipment, chart drives,
medical instruments and a great variety of industrial applications.
Standard motors are 115VAC for 60HZ operation. Other voltages and 50 Hz frequency may be
specified. The motors are reversible, and output torque is up to 150 oz-in [1059 mN-m].
Standard and modified involute spur gearing is used in A, P, and T Motor Series. All gears are
hobbed to AGMA 7 quality. Pinions are extruded from special steel with a modified long
addendum tooth form to provide higher strength. Pinions are held to the same AGMA 7 quality
level as the gears. Both pinion and gear teeth are case hardened for wear resistance and rotate
upon hardened and ground steel studs.
Output bearings are sintered bronze impregnated with synthetic E.P. oil. Other bearings are
grease lubricated and are made from bearing grade phosphor bronze. Lubrication of the gear
teeth and studs is provided by synthetic grease with extreme pressure qualities for long life.
Notes:
• Motors Listed below are 115V, 60 Hz models.
• Capacitors are required for operation and must be used in the circuit even if the motor is
used in a unidirectional mode.

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Hurst 1551 East Broadway Street Princeton, IN 47670
MOTOR SPECIFICATION SHEET