GEARED STEPPER MOTOR
PLANETARY AND SPUR GEARBOX
Geared stepper motors are perfect solutions for low speed and high torque positioning applications. GEMS provide NEMA size stepper motors that are paired with planetary gearbox and spur gearbox. Our design incorporates a square bodied motor and an round shape planetary stepper motor gearbox into a compact and cost-effective package. Our geared stepper motors are offered in six NEMA frame sizes (from NEMA 8 to NEMA 42) and each NEMA size motor has an integrated stepper motor gearbox with a wide range of gear ratios (from 1:3.7 to 1:369) so as to deliver any desired torque and speed combinations for your applications. The dual shaft version is available for you to install the brake, shaft coupler or an encoder where you need to keep track of the shaft position. 8-lead motor is aslo available upon request for all possible wiring configurations: bipolar, unipolar, series, or parallel. For higher speed and better speed control capability, please check out our brushless gear motors.
1.8° NEMA 8 Geared Stepper Motor with Planetary Gearbox
NEMA8 is our smallest size of geared stepper motor. The 22mm diameter planetary stepper motor gearbox has gear ratio from 1:3.7 to 1:369. The gearbox output torque is up to 143 oz-in (1 Nm)
| Table 1. Motor Specifications | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Model | Length L | Rated Current | Resistance | Inductance | Holding Torque | Holding Torque | Rotor Interia | Lead wires | Weight |
| mm | A | Ω/Phase | mH/Phase | Oz.in | N.m | g.cm2 | g | ||
| 20HS30-0504Z | 30 | 0.5 | 4.8 | 1.3 | 2.6 | 0.018 | 2.5 | 4 | 50 |
| 20HS42-0504Z | 42 | 0.5 | 7.5 | 2.4 | 3.6 | 0.025 | 4.5 | 4 | 90 |
| Table 2. Gearbox Specifications | |||||
|---|---|---|---|---|---|
| Number of gear trains | 1 | 2 | 3 | 4 | |
| Gear ratio | 3.7, 5.2 | 14, 19, 27 | 51, 71, 100, 139 | 189, 264, 369 | |
| Length L2 | mm | 24.4 | 33 | 41.5 | 49.8 |
| Rated output torque | N.m | 0.6 | 1 | 1.6 | 2 |
| Max output torque | N.m | 1.8 | 3 | 4.8 | 6 |
| Efficiency | % | 90 | 81 | 73 | 66 |
| Weight | g | 35 | 45 | 55 | 65 |
1.8° NEMA 11 Geared Stepper Motor with Planetary Gearbox
The 28mm diameter planetary stepper motor gearbox has gear ratio ranging from 1:3.7 to 1:369. The gearbox rated output torque is up to 286 oz-in (2 Nm)
| Table 1. Motor Specifications | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Model | Length L | Rated Current | Resistance | Inductance | Holding Torque | Holding Torque | Rotor Interia | Lead wires | Weight |
| mm | A | Ω/Phase | mH/Phase | Oz.in | N.m | g.cm2 | g | ||
| 28HS33-0804Z | 33 | 0.8 | 5.3 | 3.3 | 8.6 | 0.06 | 8 | 4 | 110 |
| 28HS45-0804Z | 45 | 0.8 | 7.8 | 5.4 | 11.5 | 0.08 | 11 | 4 | 140 |
| 28HS48-0804Z | 48 | 0.8 | 8.6 | 6.7 | 12.9 | 0.09 | 13 | 4 | 180 |
| Table 2. Gearbox Specifications | |||||
|---|---|---|---|---|---|
| Number of gear trains | 1 | 2 | 3 | 4 | |
| Gear ratio | 3.7, 5.2 | 14, 19, 27 | 51, 71, 100, 139 | 189, 264, 369, 516, 720 | |
| Length L2 | mm | 31 | 40.1 | 49 | 57.9 |
| Rated output torque | N.m | 1.2 | 2 | 3.2 | 4 |
| Max output torque | N.m | 3.6 | 6 | 9.6 | 12 |
| Efficiency | % | 90 | 81 | 73 | 66 |
| Weight | g | 59 | 85 | 95 | 110 |
1.8° NEMA 17 Geared Stepper Motor with Planetary Gearbox
NEMA 17 are our best selling geared stepper motors. The 36mm diameter planetary stepper motor gearbox has gear ratio from 1:3.7 to 1:369. The gearbox output torque is up to 429 oz-in (3 Nm)
| Table 1. Motor Specifications | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Model | Length L | Rated Current | Resistance | Inductance | Holding Torque | Holding Torque | Rotor Interia | Lead wires | Weight |
| mm | A | Ω/Phase | mH/Phase | Oz.in | N.m | g.cm2 | g | ||
| 42HS20-0804Z | 20 | 0.8 | 3.8 | 4.5 | 14.2 | 0.1 | 24 | 4 | 120 |
| 42HS28-0604Z | 28 | 0.6 | 8 | 10 | 17 | 0.12 | 30 | 4 | 150 |
| 42HS34-1304Z | 34 | 1.3 | 2.4 | 2.8 | 40 | 0.28 | 34 | 4 | 220 |
| 42HS34-0406Z | 34 | 0.4 | 30 | 18 | 40 | 0.28 | 34 | 6 | 220 |
| 42HS40-1304Z | 40 | 1.3 | 2.5 | 5 | 57 | 0.4 | 54 | 4 | 280 |
| 42HS40-1704Z | 40 | 1.7 | 1.5 | 2.8 | 57 | 0.4 | 54 | 4 | 280 |
| 42HS48-1304Z | 48 | 1.3 | 3.2 | 5.5 | 74 | 0.52 | 68 | 4 | 350 |
| 42HS48-1704Z | 48 | 1.7 | 1.8 | 3.2 | 74 | 0.52 | 68 | 4 | 350 |
| 42HS60-1704Z | 60 | 1.7 | 2.3 | 4.6 | 100 | 0.7 | 80 | 4 | 480 |
| 42HS60-2304Z | 60 | 2.3 | 1.4 | 2.5 | 100 | 0.7 | 80 | 4 | 480 |
| Table 2. Gearbox Specifications | |||||
|---|---|---|---|---|---|
| Number of gear trains | 1 | 2 | 3 | 4 | |
| Gear ratio | 3.7, 5.2 | 14, 19, 27 | 51, 71, 100, 139 | 189, 264, 369, 516, 720 | |
| Length L2 | mm | 31 | 38.5 | 48.4 | 55.8 |
| Rated output torque | N.m | 1.8 | 3 | 4.8 | 6 |
| Max output torque | N.m | 5.4 | 9 | 14.4 | 18 |
| Efficiency | % | 90 | 81 | 73 | 66 |
| Weight | g | 191 | 207 | 288 | 312 |
1.8° NEMA 23 Geared Stepper Motor with Planetary Gearbox
The 56mm diameter planetary stepper motor gearbox has gear ratio from 1:3.7 to 1:369. The gearbox output torque is up to 2150 oz-in (15 Nm)
| Table 1. Motor Specifications | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Model | Length L | Rated Current | Resistance | Inductance | Holding Torque | Holding Torque | Rotor Interia | Lead wires | Weight |
| mm | A | Ω/Phase | mH/Phase | Oz.in | N.m | g.cm2 | g | ||
| 57HS41-1503Z | 41 | 1.5 | 1.2 | 2.5 | 78 | 0.55 | 150 | 4 | 470 |
| 57HS56-1504Z | 56 | 1.5 | 3.2 | 5.5 | 128 | 0.9 | 280 | 4 | 590 |
| 57HS56-3004Z | 56 | 3 | 1.1 | 3 | 142 | 1 | 280 | 4 | 0.68 |
| 57HS76-3004Z | 76 | 3 | 0.5 | 2.4 | 227 | 1.6 | 440 | 4 | 1050 |
| 57HS76-4004Z | 76 | 4 | 0.38 | 1.8 | 227 | 1.6 | 440 | 4 | 1050 |
| 57HS84-3004Z | 84 | 3 | 0.57 | 2.5 | 256 | 1.8 | 530 | 4 | 1130 |
| 57HS84-4004Z | 84 | 4 | 0.7 | 2.7 | 256 | 1.8 | 830 | 4 | 1130 |
| 57HS100-3004Z | 100 | 3 | 0.89 | 3.4 | 284 | 2 | 680 | 4 | 1250 |
| 57HS100-4204Z | 100 | 4.2 | 0.9 | 3.8 | 284 | 2 | 680 | 4 | 1250 |
| 57HS112-3004Z | 112 | 3 | 0.9 | 4.6 | 355 | 2.5 | 800 | 4 | 1400 |
| 57HS112-4204Z | 112 | 4.2 | 0.58 | 3.8 | 355 | 2.5 | 800 | 4 | 1400 |
| Table 2. Gearbox Specifications | |||||
|---|---|---|---|---|---|
| Number of gear trains | 1 | 2 | 3 | 4 | |
| Gear ratio | 3.6 , 4.3 | 13, 15, 18 | 47, 55, 65, 77 | 168, 198, 234, 276, 326 | |
| Length L1 | mm | 53 | 61 | 72 | 84 |
| Rated output torque | N.m | 9 | 15 | 24 | 30 |
| Max output torque | N.m | 27 | 45 | 72 | 90 |
| Efficiency | % | 90 | 81 | 73 | 66 |
| Weight | g | 420 | 460 | 580 | 690 |
1.8° NEMA 34 Geared Stepper Motor with Planetary Gearbox
The 86mmx86mm planetary stepper motor gearbox has gear ratio ranging from 1:4 to 1:100. The gearbox rated output torque is up to 17,200 oz-in (120 Nm)
| Table 1. Motor Specifications | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Model | Length L | Rated Current | Resistance | Inductance | Holding Torque | Holding Torque | Rotor Interia | Lead wires | Weight |
| mm | A | Ω/Phase | mH/Phase | Oz.in | N.m | kg.cm2 | kg | ||
| 86HS68-4004Z | 68 | 4 | 0.63 | 3.2 | 370 | 2.6 | 0.85 | 4 | 2 |
| 86HS80-6004Z | 75 | 6 | 0.38 | 3.5 | 639 | 4.5 | 1.05 | 4 | 2.5 |
| 86HS80-4208Z | 75 | 4.2 | 0.72 | 3.5 | 497 | 3.5 | 1.05 | 8 | 2.5 |
| 86HS98-5004Z | 98 | 5 | 0.5 | 4 | 966 | 6.8 | 1.55 | 4 | 3 |
| 86HS116-6004Z | 114 | 6 | 0.6 | 6.8 | 1207 | 8.5 | 1.8 | 4 | 3.5 |
| 86HS116-5008Z | 114 | 5 | 0.75 | 3.2 | 824 | 5.8 | 1.8 | 8 | 3.5 |
| 86HS128-5004Z | 128 | 5 | 0.6 | 5 | 1278 | 9 | 2.2 | 4 | 4 |
| 86HS155-6004Z | 150 | 6 | 0.75 | 8.5 | 1562 | 11 | 2.5 | 4 | 5.3 |
| Table 2. Gearbox Specifications | |||
|---|---|---|---|
| Number of gear trains | 1 | 2 | |
| Gear ratio | 4, 5, 7, 9, 10 | 16, 20, 25, 28, 35, 36, 40, 45, 49, 50, 63, 70, 81, 90, 100 | |
| Length L2 | mm | 83 | 97 |
| Rated output torque | N.m | 50 | 80 |
| Max output torque | N.m | 100 | 160 |
| Efficiency | % | 96 | 94 |
| Weight | kg | 3 | 4 |
1.8° NEMA 42 Geared Stepper Motor with Planetary Gearbox
NEMA 42 are our largest stepper gear motors. The 110mm diameter planetary stepper motor gearbox has gear ratio from 1:4 to 1:64. The gearbox output torque is up to 37,200 oz-in (260 Nm)
| Table 1. Motor Specifications | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Model | Length L | Rated Current | Resistance | Inductance | Holding Torque | Holding Torque | Rotor Interia | Lead wires | Weight |
| mm | A | Ω/Phase | mH/Phase | Oz.in | N.m | kg.cm2 | kg | ||
| 110HS99-5504Z | 99 | 5.5 | 0.9 | 12 | 1562 | 11 | 5.5 | 4 | 5 |
| 110HS150-6804Z | 150 | 6.8 | 0.8 | 15 | 2982 | 21 | 10.9 | 4 | 8.4 |
| 110HS165-6004Z | 165 | 6 | 0.8 | 14 | 3408 | 24 | 12.5 | 4 | 9.5 |
| 110HS201-8004Z | 201 | 8 | 0.67 | 12 | 3976 | 28 | 16.2 | 4 | 11.7 |
| Table 2. Gearbox Specifications | |||||
|---|---|---|---|---|---|
| Model | 110PLGB1-xxZ | 110PLGB2-xxZ | |||
| Number of gear trains | 1 | 2 | |||
| Gear ratio | 3, 4, 5, 7, 8, 9 | 10, 12, 15, 16, 20, 21, 24, 25, 28, 32, 35, 40, 56, 64 | |||
| Length L2 | mm | 89 | 111 | ||
| Rated output torque | N.m | 230 | 260 | ||
| Max output torque | N.m | 460 | 520 | ||
| Efficiency | % | 90 | 80 | ||
| Weight | Kg | 4.5 | 5.8 |
1.8° NEMA 23 Geared Stepper Motor with Spur Gearbox
60mmx60mm spur stepper motor gearbox has gear ratio ranging from 1:3 to 1:200.
| Table 1. Motor Specifications | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Model | Length L | Rated Current | Resistance | Inductance | Holding Torque | Holding Torque | Rotor Interia | Lead wires | Weight |
| mm | A | Ω/Phase | mH/Phase | Oz.in | N.m | g.cm2 | g | ||
| 57HS41-1503Z | 41 | 1.5 | 1.2 | 2.5 | 78 | 0.55 | 150 | 4 | 470 |
| 57HS56-1504Z | 56 | 1.5 | 3.2 | 5.5 | 128 | 0.9 | 280 | 4 | 590 |
| 57HS56-3004Z | 56 | 3 | 1.1 | 3 | 142 | 1 | 280 | 4 | 0.68 |
| 57HS76-3004Z | 76 | 3 | 0.5 | 2.4 | 227 | 1.6 | 440 | 4 | 1050 |
| 57HS76-4004Z | 76 | 4 | 0.38 | 1.8 | 227 | 1.6 | 440 | 4 | 1050 |
| 57HS84-3004Z | 84 | 3 | 0.57 | 2.5 | 256 | 1.8 | 530 | 4 | 1130 |
| 57HS84-4004Z | 84 | 4 | 0.7 | 2.7 | 256 | 1.8 | 830 | 4 | 1130 |
| 57HS100-3004Z | 100 | 3 | 0.89 | 3.4 | 284 | 2 | 680 | 4 | 1250 |
| 57HS100-4204Z | 100 | 4.2 | 0.9 | 3.8 | 284 | 2 | 680 | 4 | 1250 |
| 57HS112-3004Z | 112 | 3 | 0.9 | 4.6 | 355 | 2.5 | 800 | 4 | 1400 |
| 57HS112-4204Z | 112 | 4.2 | 0.58 | 3.8 | 355 | 2.5 | 800 | 4 | 1400 |
| Table 2. Gearbox Specifications | ||||
|---|---|---|---|---|
| Model | 61SPGB1-xxZ | 61SPGB2-xxZ | 61SPGB3-xxZ | |
| Number of gear trains | 1 | 2 | 3 | |
| Gear ratio | 3 , 3.6 , 5 , 6 , 7.5 , 9 , 12.5 , 15 , 18 | 25 , 30 , 36 | 50 , 60 , 75 , 90 , 100 , 120 , 150 , 180 , 200 | |
| Length L2 | mm | 32 | 42 | 42 |
| Efficiency | % | 81 | 73 | 66 |
1.8° NEMA 34 Geared Stepper Motor with Spur Gearbox
| Table 1. Motor Specifications | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Model | Length L1 | Rated Current | Resistance | Inductance | Holding Torque | Holding Torque | Rotor Interia | Lead wires | Weight |
| mm | A | Ω/Phase | mH/Phase | Oz.in | N.m | kg.cm2 | kg | ||
| 86HS68-4004Z | 68 | 4 | 0.63 | 3.2 | 370 | 2.6 | 0.85 | 4 | 2 |
| 86HS80-6004Z | 75 | 6 | 0.38 | 3.5 | 639 | 4.5 | 1.05 | 4 | 2.5 |
| 86HS80-4208Z | 75 | 4.2 | 0.72 | 3.5 | 497 | 3.5 | 1.05 | 8 | 2.5 |
| 86HS98-5004Z | 98 | 5 | 0.5 | 4 | 966 | 6.8 | 1.55 | 4 | 3 |
| 86HS116-6004Z | 114 | 6 | 0.6 | 6.8 | 1207 | 8.5 | 1.8 | 4 | 3.5 |
| 86HS116-5008Z | 114 | 5 | 0.75 | 3.2 | 824 | 5.8 | 1.8 | 8 | 3.5 |
| 86HS128-5004Z | 128 | 5 | 0.6 | 5 | 1278 | 9 | 2.2 | 4 | 3.9 |
| 86HS155-6004Z | 150 | 6 | 0.75 | 8.5 | 1562 | 11 | 2.5 | 4 | 4.2 |
| Table 2. Gearbox Specifications | ||||
|---|---|---|---|---|
| Model | 90SPGB1-xxZ | 90SPGB2-xxZ | 90SPGB3-xxZ | |
| Number of gear trains | 1 | 2 | 3 | |
| Gear ratio | 3 , 3.6 , 5 , 6 , 7.5 , 9 , 12.5 , 15 , 18 | 25 , 30 , 36 | 50 , 60 , 75 , 90 , 100 , 120 , 150 , 180 , 200 | |
| Length L2 | mm | 42 | 60 | 60 |
| Efficiency | % | 81 | 73 | 66 |
| Table 3. Gearbox Specifications | ||||
|---|---|---|---|---|
| Model | 104SPGB1-xxZ | 104SPGB2-xxZ | 104SPGB3-xxZ | |
| Number of gear trains | 1 | 2 | 3 | |
| Gear ratio | 3 , 3.6 , 5 , 6 , 7.5 , 9 , 12.5 , 15 , 18 | 25 , 30 , 36 | 50 , 60 , 75 , 90 , 100 , 120 , 150 , 180 , 200 | |
| Length L2 | mm | 72 | 72 | 72 |
| Efficiency | % | 81 | 73 | 66 |
1.8° NEMA 17 Geared Stepper Motor GM42BYGH with 42mm Spur Gearbox
| Model No. | Voltage | Current | Resistance | Inductance | Output Torque | Holding Torque | # of Leads | Step Angle | Gear ratio | Length | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| V | A | W | mH | Oz-in | Kg-cm | Oz-in | Kg-cm | Full step | mm | |||
| GM42BYGH010-G36 | 1.65 | 1.5 | 1.1 | 1.6 | 747 | 53.8 | 32 | 2.3 | 4 | 0.050° | 36 | 34 |
| GM42BYGH102-G18 | 3.6 | 1.2 | 3 | 3.2 | 453 | 32.6 | 36 | 2.59 | 6 | 0.100° | 18 | 40 |
| GM42BYGH113-G10 | 5.4 | 0.85 | 6.3 | 10 | 400 | 28.8 | 50 | 3.6 | 4 | 0.180° | 10 | 40 |
| GM42BYGH405-G7.2 | 5.3 | 0.85 | 6.2 | 11 | 352 | 25.3 | 62 | 4.4 | 4 | 0.250° | 7.2 | 48 |
| GM42BYGH416-G3.6 | 6 | 0.8 | 7.5 | 6.3 | 127 | 9.13 | 44 | 3.17 | 6 | 0.500° | 3.6 | 48 |
| GM42BYG9001-G10 | 4 | 0.95 | 4.2 | 3.2 | 176 | 12.6 | 22 | 1.58 | 6 | 0.090° | 10 | 34 |
| GM42BYG9102-G5 | 2.8 | 1.68 | 1.65 | 3.8 | 200 | 14.4 | 50 | 3.6 | 4 | 0.180° | 5 | 40 |
| GM42BYG9404-G3.6 | 2.8 | 1.68 | 1.65 | 4.8 | 176 | 12.7 | 62 | 4.4 | 4 | 0.250° | 3.6 | 48 |
1.8° NEMA 23 Geared Stepper Motor GM57BYGH with 60mm Spur Gearbox
| Model No. | Voltage | Current | Resistance | Inductance | Output Torque | Holding Torque | # of Leads | Step Angle | Gear ratio | Length | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| V | A | W | mH | Oz-in | Kg-cm | Oz-in | Kg-cm | Full step | mm | |||
| GM57BYGH422-G36 | 1.65 | 1.5 | 1.1 | 1.6 | 747 | 53.8 | 32 | 2.3 | 4 | 0.050° | 36 | 34 |
| GM57BYGH516-G30 | 3.6 | 1.2 | 3 | 3.2 | 453 | 32.6 | 36 | 2.59 | 6 | 0.100° | 18 | 40 |
| GM57BYGH603-G20 | 5.4 | 0.85 | 6.3 | 10 | 400 | 28.8 | 50 | 3.6 | 4 | 0.180° | 10 | 40 |
| GM57BYGH701-G18 | 5.3 | 0.85 | 6.2 | 11 | 352 | 25.3 | 62 | 4.4 | 4 | 0.250° | 7.2 | 48 |
| GM57BYGH9503-G10 | 6 | 0.8 | 7.5 | 6.3 | 127 | 9.13 | 44 | 3.17 | 6 | 0.500° | 3.6 | 48 |
| GM57BYGH9605-G5 | 4 | 0.95 | 4.2 | 3.2 | 176 | 12.6 | 22 | 1.58 | 6 | 0.090° | 10 | 34 |
| GM57BYGH9704-G3.6 | 2.8 | 1.68 | 1.65 | 3.8 | 200 | 14.4 | 50 | 3.6 | 4 | 0.180° | 5 | 40 |