2-phase Bipolar High Torque Step Motors

OMHT Series

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2-phase Bipolar High Torque Step Motors | Order online

^TWD2,225 OMHT17-275

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2-phase High Torque Step Motors
Sizes ranging from NEMA 11 to NEMA 34
Holding torque from 15 oz-in to 1845 oz-in
200 full steps per revolution (1.8° per step)
Dual shaft models available for encoder mounting

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Description

Omega offers a robust line of 2-phase biploar high torque stepper motors ranging in frame size from NEMA 11 to NEMA 34. Most of our models are the high torque style, with holding torques up to 1845 oz-in.

All step motors conform to industry-standard NEMA mounting dimensions, and are offered with a range of well-featured, compatible drives and indexers. With the exception of our two smallest motors (OMHT11-013, OM5014-842), all of our high torque step motors are optimized for microstepping: they can achieve a stepping resolution of up to 51,200 steps/revolution (.007° per step) when operated by one of our microstepping drives.

Although it is not necessary, these motors can be fitted with one of our incremental encoders, which can aid in stall detection and prevention.

Important Note About Motor Current vs Drive Current:
When setting the drive current, you should multiply the stepper motor's nameplate current by 1.2. This provides the correct conversion from the motor's full-step nameplate rating to the drive's current setting. If the motor nameplate current is specified as 5 Amps, set the drive current to 6 Amps (5 x 1.2) to achieve full performance.

Most of the stepper motors are 8-lead motors, offering the flexibility of either series or parallel connection. The high torque motors should be series connected for best torque at low speeds, and parallel connected for best torque at higher speeds.

Motor Wiring --- Parallel Connection (8-lead motors):
Drive A+ = Orange + Black/White
Drive A- = Black + Orange/White
Drive B+ = Red + Yellow/White
Drive B- = Yellow + Red/White

Motor Wiring --- Series Connection (8-lead motors):
Drive A+ = Orange
Drive A- = Black
Drive B+ = Red
Drive B- = Yellow
Connect Orange/White to Black/White (not connected to drive)
Connect Red/White to Yellow/White (not connected to drive)

Motor Wiring (4-lead motors):
Drive A+ = Red
Drive A- = Blue
Drive B+ = Yellow
Drive B- = White

OPTIMAL DRIVE/MOTOR COMBINATIONS -- "X" INDICATES PRIMARY MOTOR CHOICE

Drive

MOTOR

1240i

2035

3540i

3540M

3540MO

Si3540

STR2

STR4

STR8

ST5-S/Si

ST10-S/Si

STAC6-S/Si

OMHT11-013

OM5014-842

OMHT17-075

OMHT17-275

OMHT17-278

OMHT23-393

OMHT23-593

OMHT23-397

OMHT23-597

OMHT23-400

OMHT23-600

OMHT23-603

OMHT24-100

OMHT24-105

OMHT24-108

OMHT34-504

OMHT34-485

OMHT34-505

OMHT34-486

OMHT34-506

OMHT34-487

OMHT23-550

OMHT34-488

OMHT34-490

RECOMMENDED MOTORS

MODEL NO.	MOTOR CONNECTION 1 = SERIES 2 = PARALLEL 3 = UNIPOLAR	MOTOR LENGTH mm (in)	HOLDING TORQUE² (oz-in)	LEADS	STEP ANGLE (DEG)	VOLTS	AMPS	OHMS	MH	ROTOR INERTIA (oz-in²/ g-cm²)	MOTOR WEIGHT g (lb)
OMHT11-013	2	48 (1.87)	15	4	1.8	2.0	1.0	2.0	2.6	0.098/18	177 (0.39)
OM5014-842	2	40 (1.57)	26.0	4	1.8	4.8	1.0	4.3	5.5	0.109/20	213 (0.47)
OMHT17-075	1	47 (1.85)	62.8	8	1.8	5.7	0.85	6.6	12.0	0.37/68	331 (0.73)
	2		62.8			2.8	1.70	1.7	3.0
	3		44.4			4.0	1.20	3.3	3.0
OMHT17-275	1	48 (1.90)	62.3	8	1.8	5.7	0.85	6.6	10.0	0.44/82	357 (0.79)
	2		62.3			2.8	1.70	1.7	2.5
	3		44.0			4.0	1.20	3.3	2.5
OMHT17-278	1	63 (2.47)	113	8	1.8	6.4	1.0	6.4	12.0	0.66/121	357 (1.32)
	2		113			3.2	2.0	1.6	3.0
	3		79.0			4.5	1.40	3.2	3.0
OMHT23-393	1	39 (1.54)	76.6	8	1.8	7.4	0.71	10.4	21.6	0.66/120	454 (1.00)
	2		76.6			3.7	1.41	2.6	5.4
	3		54.2			5.2	1.00	5.2	5.4
OMHT23-593	1	41 (1.61)	79.3	8	1.8	7.4	0.71	10.4	26.1	0.73/135	417 (0.92)
	2		79.3			3.7	1.41	2.6	6.6
	3		59.4			5.2	1.00	5.2	6.6
OMHT23-397	1	54 (2.13)	177.0	8	1.8	5.1	1.41	3.6	10.0	1.64/300	699 (1.54)
	2		177.0			2.5	2.83	0.9	2.5
	3		125.0			3.6	2.00	1.8	2.5
OMHT23-597	1	54 (2.13)	177.0	8	1.8	5.1	1.41	3.6	10.8	1.42/260	599 (1.32)
	2		177.0			2.5	2.83	0.9	2.7
	3		127.4			3.6	2.00	1.8	2.7
OMHT23-400	1	76 (2.99)	264.0	8	1.8	6.4	1.41	4.5	14.4	2.62/480	998 (2.20)
	2		264.0			3.2	2.83	1.1	3.6
	3		187.0			4.5	2.00	2.3	3.6
OMHT23-600	1	76 (2.99)	264.8	8	1.8	6.4	1.41	4.5	15.6	2.51/460	998 (2.20)
	2		264.8			3.2	2.83	1.1	3.9
	3		187.0			4.5	2.00	2.3	3.9
OMHT23-603	1	111 (4.37)	354	8	1.8	5.0	2.5	2.0	8.8	4.02/735	1497 (3.30)
	2		354			2.5	5.0	0.5	2.2
	3		264			3.5	3.5	1.0	2.2
OMHT23-550¹	1	78 (3.05)	255.0	8	1.8	6.3	1.41	4.5	15.2	2.62/480	998 (2.20)
	2		255.0			3.2	2.83	1.13	3.8
	3		180.5			4.5	2.00	2.25	3.8
OMHT24-100	2	44 (1.73)	123	4	1.8	2.0	2.8	0.73	1.6	1.42/260	599 (1.32)
OMHT24-105	2	54 (2.13)	177	4	1.8	1.7	4.0	0.43	1.1	2.46/450	830 (1.83)
OMHT24-108	2	85 (3.35)	354	4	1.8	2.6	4.0	0.65	2.4	4.91/900	1402 (3.09)
OMHT34-504	1	66 (2.62)	396	8	1.8	3.05	3.18	0.96	6.8	6.0/1100	1588 (3.5)
	2		396			1.51	6.3	0.24	1.7
	3		297			2.16	4.5	0.48	1.7
OMHT34-485	1	79 (3.11)	650	8	1.8	3.2	4.3	0.76	5.2	7.8/1400	2803 (6.18)
	2		650			1.6	8.6	0.19	1.3
	3		455			2.26	6.0	0.38	1.3
OMHT34-505	1	96 (3.78)	849	8	1.8	4.20	3.18	1.32	10.8	10.1/1850	2676 (5.9)
	2		849			2.08	6.3	0.33	2.7
	3		608			2.97	4.5	0.66	2.7
OMHT34-486	1	118 (4.63)	1200	8	1.8	4.4	4.1	1.08	8.8	14.6/2680	3810 (8.40)
	2		1200			2.2	8.1	0.27	2.2
	3		840			3.1	5.7	0.54	2.2
OMHT34-506	1	125 (4.94)	1260	8	1.8	5.43	2.8	1.94	21.6	15.0/2750	3810 (8.4)
	2		1260			2.74	5.6	0.49	5.4
	3		906			3.88	4.0	0.97	5.4
OMHT34-487	1	156 (6.14)	1845	8	1.8	4.8	4.5	1.08	9.6	21.9/4000	5398 (11.9)
	2		1845			2.4	9.0	0.27	2.4
	3		1290			3.4	6.3	0.54	2.4
OMHT34-488¹	1	79 (3.11)	650	8	1.8	3.2	4.3	1.6	5.2	7.8/1400	3629 (8.00)
	2		650			1.6	8.6	0.4	1.3
	3		455			2.26	6.0	0.8	1.3
OMHT34-490¹	1	156 (6.14)	1845	8	1.8	4.5	4.8	1.7	9.6	21.9/4000	5398 (11.9)
	2		1845			2.25	9.6	0.42	2.4
	3		1290			3.2	6.8	0.85	2.4

¹Motor with 3m (10') shielded cable
²Guaranteed minimum holding torque; actual torque may be 5-10% greater

(Specify Model Number)

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Part Number/Desc.

Qty

Description

OMHT11-013

TWD4,925

Availability: 7 weeks

NEMA 11 high torque step motor, 15 oz-in min holding torque

OM5014-842

Consult Sales

Availability:

NEMA 14 standard torque step motor, 26 oz-in min holding torque

OMHT17-075

TWD3,340

Availability: 11 weeks

NEMA 17 high torque step motor, 62.8 oz-in min holding torque

OMHT17-275

TWD2,225

Availability: 1 week

NEMA 17 high torque step motor, 62.3 oz-in min holding torque

OMHT17-278

TWD2,635

Availability: 3 weeks

NEMA 17 high torque step motor, 113 oz-in min holding torque

OMHT23-393

Consult Sales

Availability:

NEMA 23 high torque step motor, 76.6 oz-in min holding torque

OMHT23-593

TWD2,635

Availability: 5 weeks

NEMA 23 high torque step motor, 79.3 oz-in min holding torque

OMHT23-397

Consult Sales

Availability:

NEMA 23 high torque step motor, 177 oz-in min holding torque

OMHT23-597

TWD2,935

Availability: 11 weeks

NEMA 23 high torque step motor, 177 oz-in min holding torque

OMHT23-400

Consult Sales

Availability:

NEMA 23 high torque step motor, 264 oz-in min holding torque

OMHT23-600

TWD4,755

Availability: 1 week

NEMA 23 high torque step motor, 264.8 oz-in min holding torque

OMHT23-603

TWD5,395

Availability: 5 weeks

NEMA 23 high torque step motor, 354 oz-in min holding torque

OMHT24-100

TWD3,255

Availability: 5 weeks

NEMA 24 high torque step motor, 123 oz-in min holding torque

OMHT24-105

TWD3,685

Availability: 5 weeks

NEMA 24 high torque step motor, 177 oz-in min holding torque

OMHT24-108

TWD6,555

Availability: 5 weeks

NEMA 24 high torque step motor, 354 oz-in min holding torque

OMHT34-504

TWD4,885

Availability: 5 weeks

NEMA 34 high torque step motor, 396 oz-in min holding torque

OMHT34-485

TWD12,420

Availability: 1 week

NEMA 34 high torque step motor, 650 oz-in min holding torque

OMHT34-505

TWD6,725

Availability: 1 week

NEMA 34 high torque step motor, 849 oz-in min holding torque

OMHT34-486

TWD16,065

Availability: 5 weeks

NEMA 34 high torque step motor, 1200 oz-in min holding torque

OMHT34-506

TWD9,340

Availability: 1 week

NEMA 34 high torque step motor, 1260 oz-in min holding torque

OMHT34-487

TWD21,630

Availability: 1 week

NEMA 34 high torque step motor, 1845 oz-in min holding torque

Motors for STAC6 Drive: Shielded Cable + Connector

OMHT23-550

TWD6,380

Availability: 5 weeks

NEMA 23 high torque step motor with 3 m (10') shielded cable, 255 oz-in min holding torque

OMHT34-488

TWD16,490

Availability: 5 weeks

NEMA 34 high torque step motor with 3 m (10') shielded cable, 650 oz-in min holding torque

OMHT34-490

TWD24,630

Availability: 1 week

NEMA 34 high torque step motor with 3 m (10') shielded cable, 1845 oz-in min holding torque

Double Shaft

OMHT11-013-D

TWD5,185

Availability: 1 week

NEMA 11 high torque step motor, 15 oz-in min holding torque

OM5014-842-D

Consult Sales

Availability:

NEMA 14 standard torque step motor, 26 oz-in min holding torque

OMHT17-075-D

TWD3,600

Availability: 17 weeks

NEMA 17 high torque step motor, 62.8 oz-in min holding torque

OMHT17-275-D

TWD2,440

Availability: 5 weeks

NEMA 17 high torque step motor, 62.3 oz-in min holding torque

OMHT17-278-D

TWD2,805

Availability: 1 week

NEMA 17 high torque step motor, 113 oz-in min holding torque

OMHT23-393-D

Consult Sales

Availability:

NEMA 23 high torque step motor, 76.6 oz-in min holding torque

OMHT23-593-D

TWD2,850

Availability: 5 weeks

NEMA 23 high torque step motor, 79.3 oz-in min holding torque

OMHT23-397-D

Consult Sales

Availability:

NEMA 23 high torque step motor, 177 oz-in min holding torque

OMHT23-597-D

TWD3,150

Availability: 1 week

NEMA 23 high torque step motor, 177 oz-in min holding torque

OMHT23-400-D

Consult Sales

Availability:

NEMA 23 high torque step motor, 264 oz-in min holding torque

OMHT23-600-D

TWD4,970

Availability: 5 weeks

NEMA 23 high torque step motor, 264.8 oz-in min holding torque

OMHT23-603-D

TWD5,570

Availability: 15 weeks

NEMA 23 high torque step motor, 354 oz-in min holding torque

OMHT24-100-D

TWD3,510

Availability: 5 weeks

NEMA 23 high torque step motor, 123 oz-in min holding torque

OMHT24-105-D

TWD3,920

Availability: 5 weeks

NEMA 23 high torque step motor, 177 oz-in min holding torque

OMHT24-108-D

TWD6,770

Availability: 1 week

NEMA 23 high torque step motor, 354 oz-in min holding torque

OMHT34-504-D

TWD5,055

Availability: 1 week

NEMA 34 high torque step motor, 396 oz-in min holding torque

OMHT34-485-D

TWD12,420

Availability: 1 week

NEMA 34 high torque step motor, 650 oz-in min holding torque

OMHT34-505-D

TWD6,895

Availability: 5 weeks

NEMA 34 high torque step motor, 849 oz-in min holding torque

OMHT34-486-D

TWD16,275

Availability: 5 weeks

NEMA 34 high torque step motor, 1200 oz-in min holding torque

OMHT34-506-D

TWD9,550

Availability: 5 weeks

NEMA 34 high torque step motor, 1260 oz-in min holding torque

OMHT34-487-D

TWD21,845

Availability: 5 weeks

NEMA 34 high torque step motor, 1845 oz-in min holding torque

Double Shaft Motors for STAC6 Drive: Shielded Cable + Connector

OMHT23-550-D

TWD6,595

Availability: 1 week

NEMA 23 high torque step motor with 3 m (10') shielded cable, 255 oz-in min holding torque

OMHT34-488-D

TWD16,705

Availability: 5 weeks

NEMA 34 high torque step motor with 3 m (10') shielded cable, 650 oz-in min holding torque

OMHT34-490-D

TWD24,845

Availability: 5 weeks

NEMA 34 high torque step motor with 3 m (10') shielded cable, 1845 oz-in min holding torque

Double Shaft Motors with Encoders

OMHT17-278-D-WAA

TWD9,125

Availability: 1 week

NEMA 17 high torque step motor, 113 oz-in min holding torque, with WAA encoder mounted

OMHT23-603-D-ZAA

TWD12,420

Availability: 1 week

NEMA 23 high torque step motor, 354 oz-in min holding torque, with ZAA encoder mounted

Accessories

ENC-1000i

Consult Sales

Availability:

Differential encoder for NEMA 11/14 motors, 1000-line, with index

ENC-CA-4217-6FT

Consult Sales

Availability:

Encoder cable, 1.8 m (3'), for ENC-1000i encoder

ENC-CA-4217-10FT

Consult Sales

Availability:

Encoder cable, 3 m (10'), for ENC-1000i encoder

ENC-CA-4217-20FT

Consult Sales

Availability:

Encoder cable, 6 m (20'), for ENC-1000i encoder

ENC-WAA

TWD5,740

Availability: 1 week

Differential encoder for NEMA 17 motors, 2000-line, with index

ENC-ZAA

TWD5,740

Availability: 5 weeks

Differential encoder for NEMA 23/24 motors, 2000-line, with index

ENC-YAA

TWD5,740

Availability: 5 weeks

Differential encoder for NEMA 34 motors, 2000-line, with index

ENC-ST-CA-10

Consult Sales

Availability:

Encoder cable, 3 m (10'), for ENC-WAA, -YAA, -ZAA encoders

† All prices on this site are shown in Taiwan Dollars.
Note: Optional encoders can only be added to double shaft versions.
Encoders offered are differential encoders with line drivers. These provide two channels of signals with complementary signals. Versions with index also offer Z-channel and its complementary signal.
Ordering Example: (1) OMHT34-490-D NEMA 34 high torque step motor with 1845 oz-in min holding torque with 3 m (10') shielded cable and double shaft, TWD24,845