Beckwith Electronics


Hamburg, Illinois 62045
(618) 232-1139

(618) 232-1172 fax

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Hurst Manufacturing


Discontinued for reference only

SA and SB Series Reversible Permanent Magnet Synchronous motor REVERSIBLE PERMANENT MAGNET SYNCHRONOUS MOTORS:
SA and SB Series

These popular, compact motors are available in two synchronous speeds: SA Series (300 RPM) and SB Series (600 RPM). Direct drive motors can be furnished with either sleeve or ball bearings. Double ended shafts may be specified.

Geared motors have shaft output speeds ranging from 1 to 360 RPM and torque ratings from 200 (max. gear train loading) to 7 oz-in. Gear trains are engineered to provide long service life in a wide variety of applications. No plastic parts are used. Motors listed are 115 VAC at 60 Hz and require a capacitor. Click here for gear train construction details.

Direct Drive 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
SA 4001-001   300 6.0 5 .50 28 8 SLEEVE
SA 4017-001   300 8.5 7 .62 37 8 SLEEVE
SA 4009-001   300 7.0 5 .50 28 8 BALL
SA 4018-001   300 9.0 7 .62 37 8 BALL
SB 4005-001   600 5.5 7 .68 30 8 SLEEVE
SB 4011-001   600 5.5 7 .68 36 8 BALL
Bold face listings indicate Hi-Torque rotor.

Geared 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)
SA 4002-002   1 200* 5 .50 28 16
SA 4002-004   2 174* 5 .50 28 16
SA 4002-006   4 152* 5 .50 28 16
SA 4002-006   6 140* 5 .50 28 16
SA 4002-010   10 126 5 .50 28 16
SA 4002-014   30 45 5 .50 28 16
SA 4002-015   60 23 5 .50 28 16
SA 4002-018   120 11 5 .50 28 16
SA 4021-014   30 64 7 .62 37 16
SA 4021-015   60 32 7 .62 37 16
SA 4021-018   120 16 7 .62 37 16
SB 4006-003   20 115 5 .68 30 16
SB 4006-004   30 77 7 .68 30 16
SB 4006-006   60 41 7 .68 30 16
SB 4006-007   100 24 7 .68 30 16
SB 4006-008   120 20 7 .68 30 16
SB 4006-009   200 12 7 .68 30 16
SB 4006-010   300 8 7 .68 30 16
SB 4006-011   360 7 7 .68 30 16
*Maximum recommended gear train loading. Bold face listings indicate Hi-Torque rotor.