3.35 in. (85 mm) / 3.54 in. (90 mm) SMK Series Low Speed Synchronous Motors

Low-speed synchronous motors provide highly precise speed regulation, low-speed rotation, and quick bi-directional rotation. The basic construction of low-speed synchronous motors is the same as that of stepper motors.

3.35 in. (85 mm) / 3.54 in. (90 mm) Frame Size
Single-Phase 100/115 VAC
Holding Torque

Round Shaft = 5.1 ~ 12.6 oz-in (36 ~ 89 mN·m)
Parallel Shaft Gear = 12.3 ~ 88 lb-in (1.4 ~ 10 N·m)

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Items	SMK5100A-AA 3.35 in. (85 mm) Low-Speed Synchronous Motor Web Price $198.00 Add To Cart Request Quote	SMK5160A-AA 3.35 in. (85 mm) Low-Speed Synchronous Motor Web Price $287.00 Add To Cart Request Quote	SMK550A-GN / 5GN3SA 3.54 in. (90 mm) Low-Speed Synchronous Motor Web Price $322.00 Add To Cart Request Quote	SMK550A-GN / 5GN3.6SA 3.54 in. (90 mm) Low-Speed Synchronous Motor Web Price $322.00 Add To Cart Request Quote	SMK550A-GN / 5GN5SA 3.54 in. (90 mm) Low-Speed Synchronous Motor Web Price $322.00 Add To Cart Request Quote
Frame Size	- 3.35 in85 mm	- 3.35 in85 mm	- 3.54 in90 mm	- 3.54 in90 mm	- 3.54 in90 mm
Power Supply	- Single-Phase 100-115 VAC
Frequency (Hz)	- 60 50
Current	- 0.17 A [100 VAC, 50 Hz] 0.20 A [100 VAC, 60 Hz] 0.21 A [115 VAC, 60 Hz]	- 0.23 A [100 VAC, 50 Hz] 0.26 A [100 VAC, 60 Hz] 0.28 A [115 VAC, 60 Hz]	- 0.06 A [100 VAC, 50 Hz] 0.07 A [100/115 VAC, 60 Hz]	- 0.06 A [100 VAC, 50 Hz] 0.07 A [100/115 VAC, 60 Hz]	- 0.06 A [100 VAC, 50 Hz] 0.07 A [100/115 VAC, 60 Hz]
Shaft/Gear Type	- Round Shaft (No Gearhead)	- Round Shaft (No Gearhead)	- Parallel Shaft Gearhead	- Parallel Shaft Gearhead	- Parallel Shaft Gearhead
Gear Ratio (X:1)	-	-	- 3 :1	- 3.6 :1	- 5 :1
Output Shaft Diameter	- 1/2 in.
Rated Torque	- 8.875 lb-in [50 Hz] 9.75 lb-in [60 Hz] 1 N·m [50 Hz] 1.1 N·m [60 Hz]	- 13.75 lb-in [50 Hz] 18.125 lb-in [60 Hz] 1.6 N·m [50 Hz] 2.1 N·m [60 Hz]	- 12.3 lb-in 1.4 N·m	- 15 lb-in 1.7 N·m	- 20 lb-in 2.3 N·m
Rated Speed (rpm)	- 60 [50 Hz] 72 [60 Hz]	- 60 [50 Hz] 72 [60 Hz]	- 20 [50 Hz] 24 [60 Hz]	- 16.67 [50 Hz] 20 [60 Hz]	- 14.4 [60 Hz] 12 [50 Hz]
Permissible Load Inertia	- 38 oz-in²7 x 10^-4 kg·m²	- 66 oz-in²12 x 10^-4 kg·m²	- 340 oz-in²63 x 10^-4 kg·m²	- 500 oz-in²90.7 x 10^-4 kg·m²	- 960 oz-in²175 x 10^-4 kg·m²
Permissible Overhung Load	- 0 in. from Shaft End = 58 lb0.2 in. from Shaft End = 65 lb0.39 in. from Shaft End = 76 lb0.59 in. from Shaft End = 87 lb0.79 in. from Shaft End = 108 lb0 mm from Shaft End = 260 N5 mm from Shaft End = 290 N10 mm from Shaft End = 340 N15 mm from Shaft End = 390 N20 mm from Shaft End = 480 N	- 0 in. from Shaft End = 58 lb0.2 in. from Shaft End = 65 lb0.39 in. from Shaft End = 76 lb0.59 in. from Shaft End = 87 lb0.79 in. from Shaft End = 108 lb0 mm from Shaft End = 260 N5 mm from Shaft End = 290 N10 mm from Shaft End = 340 N15 mm from Shaft End = 390 N20 mm from Shaft End = 480 N	- 0.39 in. from Shaft End = 56 lb0.79 in. from Shaft End = 78 lb10 mm from Shaft End = 250 N20 mm from Shaft End = 350 N	- 0.39 in. from Shaft End = 56 lb0.79 in. from Shaft End = 78 lb10 mm from Shaft End = 250 N20 mm from Shaft End = 350 N	- 0.39 in. from Shaft End = 56 lb0.79 in. from Shaft End = 78 lb10 mm from Shaft End = 250 N20 mm from Shaft End = 350 N
Permissible Thrust Load	-	-	- 22 lb100 N	- 22 lb100 N	- 22 lb100 N
Permissible Thrust Load	- The permissible thrust load shall be no greater than the motor mass.	- The permissible thrust load shall be no greater than the motor mass.	-	-	-
RoHS Compliant	- Yes
Safety Standards	- UL CSA CE

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