What NEMA frame sizes does SEI offer?

SEI supplies hybrid stepping motors from NEMA 8 through NEMA 42, with output torque ranging from 5 oz-in to 2,776 oz-in depending on frame size and stack length.

Can I get a 0.9° high-resolution stepping motor?

Yes. SEI offers both 1.8° standard and 0.9° high-resolution step angles in standard torque round and square high-torque motor configurations.

Products

Stepping Motors

Source Engineering offers a large assortment of hybrid stepping motors to meet your application needs. Our robust line of cost-effective 2-phase stepping motors are available in multiple stack lengths, single or dual shaft and can be wound to match any driver specifications.

We offer a 1.8 degree and a high resolution 0.9 degree step angle in both the standard torque round motor and the square high torque motor. The output torque ranges from the NEMA 8 that produces 5 oz-in of torque to the NEMA 42 that produces 2776 oz-in. All motors conform to the industry standard NEMA mounting dimensions and are designed to produce the highest torque possible with least amount of audible noise.

Upon request we can modify the shaft, mount encoders, add gearboxes and supply cable assemblies.

Request a Quote call(408) 980-9822

Key Features

check_circleNEMA 8 through NEMA 42 frame sizes
check_circle1.8° standard and 0.9° high-resolution step angles
check_circleStandard torque round and square high-torque motor configurations
check_circleMultiple stack lengths with single or dual shaft options
check_circleCustom windings to match any driver specifications
check_circleIndustry-standard NEMA mounting dimensions
check_circleLow audible noise design for quiet operation
check_circleCustom shaft modifications, encoders, gearboxes, and cable assemblies available

Specifications

Frame sizes	NEMA 8, 11, 14, 17, 23, 34, 42
Step angles	1.8° (standard) and 0.9° (high resolution)
Motor types	Standard torque round, square high torque
Phase	2-phase hybrid stepping
Torque range	5 oz-in (NEMA 8) to 2,776 oz-in (NEMA 42)
Shaft options	Single or dual shaft, multiple stack lengths
Mounting	Industry-standard NEMA dimensions

Configuration Options

settingsMultiple stack lengths for torque vs. length tradeoffs
settingsSingle or dual shaft configurations
settingsCustom windings matched to driver voltage and current
settingsOptional encoders for closed-loop operation
settingsOptional gearbox integration (spur gear motor series available)
settingsCustom shaft modifications and cable assemblies

Applications

3D printing and additive manufacturing
CNC and machine tool positioning
Medical and laboratory automation
Semiconductor equipment positioning stages
Packaging and labeling machinery
General industrial automation

Spur Gear Motor Series

Stepping motors can be paired with spur gearheads for increased torque output in compact envelopes. Contact SEI for available gear ratios and NEMA frame combinations.

FAQ

What NEMA frame sizes does SEI offer?: SEI supplies hybrid stepping motors from NEMA 8 through NEMA 42, with output torque ranging from 5 oz-in to 2,776 oz-in depending on frame size and stack length.
Can I get a 0.9° high-resolution stepping motor?: Yes. SEI offers both 1.8° standard and 0.9° high-resolution step angles in standard torque round and square high-torque motor configurations.