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	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.

Model	Part Number	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