Calculated Torque Charts for Stepper Motor U21

Motors That Survive...

Empire Magnetics

Motors That Survive...

Specialty Motors

Motors That Survive...

High-power Motors

Motors That Survive...

Radiation Hardened

Motors That Survive...

Cryogenic Motors

Motors That Survive...

Custom Motors

Motors That Survive...

Hazardous

Area

Motors That Survive...

Industrial

Standard

TRUSTED BY:

Arnold A.F.B.

Argonne National Labs

Boeing

CTA Space Systems

European Space Agency

J.P.L./Hughes

U.C. Santa Cruz, Lick Observatory

Los Alamos National Labs

Optical Coating Labs

NASA/Langley AFB

Smithsonian Observatory

Space Industries

U.C. Berkeley Space Sciences Lab

Stanford Linear Accelerator

Ontario Hydro, Canada

Tokai Works, Japan

Taiwan Nuclear Power Commission

Public Nuclear Commission, Japan

Materiel

Brookhaven National Labs

General Electric Nuclear Fuels Div.

Martin Marietta/Oak Ridge National Lab

Empire Magnetics

Specifications

The following are calculated torque speed curves based on a series of assumptions, actual performance may vary depending on the drive electronics.
These calculations are offered only as estimates of performance, as such Empire Magnetics Inc. does not offer assurances that such performance will be achieved.

Speed (RPS)	Torque (oz-in)
Speed (RPS)	12 V	24 V	36 V	48 V	60 V	72 V	90 V	120 V	150 V	170 V
1	30	52	54	54	55	55	55	55	55	55
2	19	41	49	52	53	53	54	54	54	54
4	9	22	34	43	47	49	50	52	52	53
6	4	13	22	31	38	43	46	49	50	51
8	2	8	15	22	28	35	41	45	48	49
10	N/A	5	11	16	21	27	34	41	45	46
15	N/A	1	4	8	11	15	20	29	36	39
20	N/A	N/A	0	3	6	8	12	19	26	30
25	N/A	N/A	N/A	N/A	2	4	7	13	18	22
30	N/A	N/A	N/A	N/A	N/A	1	4	8	13	16
35	N/A	N/A	N/A	N/A	N/A	N/A	1	5	9	11
40	N/A	N/A	N/A	N/A	N/A	N/A	N/A	2	5	8
50	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	0	2

Speed (RPS)	Torque (oz-in)
Speed (RPS)	12 V	24 V	36 V	48 V	60 V	72 V	90 V	120 V	150 V	170 V
1	50	52	52	52	52	52	52	52	52	52
2	43	49	51	51	51	51	51	51	51	52
4	23	42	47	48	49	50	50	50	50	50
6	14	32	41	45	47	48	48	49	49	49
8	9	22	35	41	44	45	47	48	48	48
10	6	16	27	36	40	43	45	46	47	47
15	1	8	15	22	29	34	39	42	44	45
20	N/A	3	9	14	19	25	32	38	40	42
25	N/A	N/A	4	9	13	17	24	32	36	38
30	N/A	N/A	1	5	8	12	17	26	32	35
35	N/A	N/A	N/A	2	5	8	13	20	27	30
40	N/A	N/A	N/A	N/A	2	5	9	15	22	26
50	N/A	N/A	N/A	N/A	N/A	N/A	3	9	14	17

TOP

Government Projects & Defense Applications

Empire Magnetics has been awarded and completed US Navy contracts in excess of $100,000 as a prime contractor. The Cage code number assigned was OYMU1, CEC code 19665900H. As a subcontractor to RSI/Comsat, SAIC, Lockheed Martin, Westinghouse, General Electric and other prime contractors for the US Government, contracts in excess of $200,000 have been awarded and completed.

Learn More

Nationwide & International Distributors for Specialty Motors & Complete Motor System Solutions

Empire Magnetics products are distributed by a nationwide and international network of motion control sales professionals. Your local distributor carries the drives and controls, and the accessories needed to build a complete motion control system.

Distributors - USA

Distributors - International