86STH156 NEMA-34 Bipolar Gearless Large Stepper

86STH156 NEMA-34 Bipolar Gearless Large Stepper

ID: 3336_0

This massive bipolar stepper with a rear shaft has a 1.8° step angle and over 100 kg·cm of torque at low speeds.

Discontinued

This NEMA-34 motor generates 122 kg-cm of holding torque at 4.2 Amps. It comes with the rear shaft exposed, so you can mount an encoder or shaft coupler. See the Connection & Compatibility tab for a complete list of attachments.

Connection

This motor must be controlled by a constant current or chopper drive controller. You can find a list of suitable controllers on the Connection & Compatibility tab. There you will also find compatible attachments such as encoders, mounting hardware, and transmission hardware.

Warning

Connecting the motor directly to a power supply will destroy the motor and void the warranty. If you want to check your motor make sure it is connected to a constant current / chopper drive controller.

This motor is large enough that the back EMF generated from stalling or changing directions could easily damage your motor controller. If you're planning on using this motor in high-speed or high-torque applications, feel free to contact us for advice.

Motor Controllers

This motor must be controlled by a stepper motor controller. These diagrams show to wiring configurations: series and parallel. Series wiring will result in higher torque when the motor is stopped or at low speeds. Parallel wiring will provide better torque at higher speeds, but less torque overall. Since the current in parallel mode is split between two paths, the current rating is doubled. When connecting motor wires to one another, you must solder or screw clamp them together rather than just twisting them together.

Note: Make sure to unplug the power cord from the motor controller before switching wires around.

Parallel Wiring

Function	3335		STC1001	1067
A	Red	Blue	A	A
Ā	Yellow	Black	A-	B
B	White	Brown	B	C
B̄	Orange	Green	B-	D

Series Wiring

Function	3335		STC1001	1067
A	Red		A	A
	Blue	Yellow
Ā	Black		Ā	B
B	White		B	C
	Orange	Brown
B̄	Green		B̄	D

The following stepper controllers can be used to drive this motor:

Product		Controller Properties			Electrical Properties
Part Number	Price	Motor Position Resolution	Stepper Velocity Resolution	Stepper Velocity Max	Available Current per Coil Max
1067_0B PhidgetStepper Bipolar HC	$90.00	¹⁄₁₆ Step (40-Bit Signed)	1 1/16 steps/sec	250000 1/16 steps/sec	4 A
STC1002_0 8A Stepper Phidget	$80.00	¹⁄₁₆ Step (40-Bit Signed)	1 1/16 steps/sec	115000 1/16 steps/sec	8 A
STC1003_1 4A Stepper Phidget	$40.00	1/16 Step (40-Bit Signed)	1 1/16 steps/sec	115000 1/16 steps/sec	4 A

Encoders

The rear shaft of this motor can be equipped with an encoder for applications where you need to keep track of the exact position, velocity, or acceleration of the motor. The mounting holes on the back of this motor are compatible with the following encoders:

Product		Encoder Properties
Part Number	Price	Output Circuit Type	Encoder Resolution	Encoder Speed Max
3531_0 Optical Rotary Encoder HKT22	$25.00	Push-Pull (Single-Ended)	300 CPR	6000 RPM
ENC4109_0 40 CPR Quadrature Encoder	$10.00	Push-Pull	40 CPR	6000 RPM

Shaft Couplers

If you need to connect the main shaft of this motor to the shaft of another device, you can use a shaft coupler:

Product		Physical Properties
Part Number	Price	Inner Diameter	Material	Coupling Rated Torque	Coupling Rated Speed	Torsional Stiffness
TRM4321_0 Jaw Coupling Half 5/8" Series 24	$6.85	⁵⁄₈″	Aluminum	611.8 kg·cm	4000 RPM	—

Pulleys and Sprockets

If you're using this motor to drive a rotary system that requires a lot of torque, you may be interested in pulleys and sprockets. By using a two pulleys or sprockets of different sizes, you can increase the gear ratio of the motor. Pulleys and sprockets can also be used to transmit the motor's rotation over a long distance. For more guidance on building a transmission system, visit our Rotary Motion Primer. Here is a list of our 5/8" bore pulleys and sprockets:

Product		Physical Properties
Part Number	Price	Inner Diameter	Number of Teeth
TRM4127_0 5GT Pulley with 5/8" Bore and 24 Teeth	$3.70	⁵⁄₈″	24
TRM4150_0 #40 Chain Sprocket with 5/8" Bore and 9 Teeth	$4.50	⁵⁄₈″	9

Product Specifications

Motor Properties
Motor Type	Bipolar Stepper
Manufacturer Part Number	86STH156-4208B
Step Angle	1.8°
Step Accuracy	± 5 %
Holding Torque	122 kg·cm
Rated Torque	106 kg·cm
Maximum Motor Speed	1500 RPM
Electrical Properties
Recommended Voltage	30 V DC
Coil Resistance	900 mΩ
Rated Current (Series Wiring)	3 A
Rated Current (Parallel Wiring)	6 A
Phase Inductance	8 mH
Physical Properties
Shaft Diameter	⁵⁄₈″
Rear Shaft Diameter	3.9 mm
Mounting Plate Size	NEMA - 34
Weight	5.2 kg
Number of Leads	8
Wire Length	400 mm
Customs Information
Canadian HS Export Code	8501.31.00
American HTS Import Code	8501.31.20.00
Country of Origin	CN (China)

Documents

Here's a list of our bipolar stepper motors:

Product		Motor Properties			Electrical Properties	Physical Properties		Gearbox Properties
Part Number	Price	Step Angle	Rated Torque	Maximum Motor Speed	Recommended Voltage	Shaft Diameter	Weight	Gear Ratio
3320_0 28STH32 NEMA-11 Bipolar Gearless Stepper Motor	$16.00	1.8°	520 g·cm	1300 RPM	24 V DC	5 mm	111.4 g	—
3321_0 28STH32 NEMA-11 Bipolar Stepper with 27:1 Gearbox	$36.00	0.067°	14 kg·cm	50 RPM	24 V DC	6 mm	217.5 g	26 ¹⁰³⁄₁₂₁ : 1
3322_0 28STH32 NEMA-11 Bipolar Stepper with 100:1 Gearbox	$38.00	0.018°	32 kg·cm	13 RPM	24 V DC	6 mm	243.6 g	99 ¹⁰⁴⁴⁄₂₀₅₇ : 1
3323_0 35STH40 NEMA 14 Bipolar Gearless Stepper	$16.00	1.8°	1.2 kg·cm	1000 RPM	24 V DC	5 mm	200 g	—
3324_0 42STH38-1684B - 1.8 Degree - 1.68A Stepper - Gearless	$16.00	1.8°	3.3 kg·cm	1000 RPM	24 V DC	5 mm	289 g	—
3325_0 42STH38-1684B - 1.8 Degree - 1.68A Stepper - 5.18:1 Gearbox	$40.00	0.35°	18 kg·cm	200 RPM	24 V DC	8 mm	457 g	5 ²⁄₁₁ : 1
3326_0 42STH38-1684B - 1.8 Degree - 1.68A Stepper - 14:1 Gearbox	$42.00	0.13°	30 kg·cm	70 RPM	24 V DC	8 mm	502 g	13 ²¹²⁄₂₈₉ : 1
3327_0 42STH38-1684B - 1.8 Degree - 1.68A Stepper - 27:1 Gearbox	$44.00	0.067°	30 kg·cm	40 RPM	24 V DC	8 mm	503 g	26 ¹⁰³⁄₁₂₁ : 1
3328_0 42STH38-1684B - 1.8 Degree - 1.68A Stepper - 51:1 Gearbox	$46.00	0.035°	48 kg·cm	20 RPM	24 V DC	8 mm	564 g	50 ⁴³⁹⁷⁄₄₉₁₃ : 1
3329_0 42STH38-1684B - 1.8 Degree - 1.68A Stepper - 100:1 Gearbox	$48.00	0.018°	48 kg·cm	10 RPM	24 V DC	8 mm	564 g	99 ¹⁰⁴⁴⁄₂₀₅₇ : 1
3330_0 57STH56-2804MB - 0.9 Degree - 2.8A Stepper - Gearless	$28.00	0.9°	11.2 kg·cm	500 RPM	24 V DC	¹⁄₄″	695 g	—
3331_0 57STH56-2804B - 1.8 Degree - 2.8A Stepper - Gearless	$20.00	1.8°	11 kg·cm	2150 RPM	12 V DC	¹⁄₄″	686 g	—
3332_0 57STH56-2804B - 1.8 Degree - 2.8A Stepper - 4.25:1 Gearbox	$70.00	0.42°	46.6 kg·cm	165 RPM	24 V DC	12 mm	1.2 kg	4 ¹⁄₄ : 1
3333_0 57STH56-2804B - 1.8 Degree - 2.8A Stepper - 15:1 Gearbox	$72.00	0.12°	150 kg·cm	50 RPM	24 V DC	12 mm	1.3 kg	15 ³⁄₁₀ : 1
3334_0 57STH56-2804B - 1.8 Degree - 2.8A Stepper - 77:1 Gearbox	$74.00	0.023°	240 kg·cm	10 RPM	24 V DC	12 mm	1.5 kg	76 ⁴⁹⁄₆₄ : 1
3335_0 86STH65 NEMA-34 Bipolar Gearless Stepper	$60.00	1.8°	30 kg·cm	200 RPM	30 V DC	12 mm	1.8 kg	—
3340_0 42STH38-1684MB - 0.9 Degree - 1.68A Stepper - Gearless	$20.00	0.9°	3.3 kg·cm	400 RPM	24 V DC	5 mm	288 g	—