NMB Standard PM Stepping Motors
NMB standard PM stepping motors use a permanent-magnet rotor and external phase excitation to produce discrete rotary movement. The family includes several diameters, body lengths and step-count choices for OEM feed and adjustment mechanisms. The motor name does not by itself identify a drive winding, feedback system or complete axis.
Key Specifications
PM15S-020 | 15 mm diameter; 12 mm body length; 20 steps/revolution; 18° full-step angle |
PM20S-020 / PM20L-020 | 20 mm diameter; 15.5 / 19.6 mm body length; 20 steps/revolution |
PM25S-024 / PM25L-024 | 25 mm diameter; 12.5 / 17 mm body length; 24 steps/revolution, 15° full steps |
PM25S-048 | 25 mm diameter; 12.5 mm body length; 48 steps/revolution, 7.5° full steps |
PM35S-024 / PM35L-024 | 35 mm diameter; 15.5 / 22.2 mm body length; 24 steps/revolution |
PM35 N48 examples | PM35S-N48 / PM35L-N48; 35 mm diameter; 48 steps/revolution; exact winding and drawing required |
PM42 examples | N48/F48: 48 steps; N96: 96 steps; PM42S-0X1: 100 steps; lengths and windings differ |
PM55L-048 | 55 mm diameter; 25.7 mm body length; 48 steps/revolution |
PM15S reference windings | Bipolar constant-voltage examples: 5 V with 30 Ω per phase or 12 V with 100 Ω per phase |
PM25L reference drives | 12 V unipolar constant-voltage 50 Ω example, or 24 V bipolar chopper at 400 mA with 12 Ω winding |
Performance scope | Model-specific reference pull-in/pull-out curves; drive, magnet, duty and heat rejection affect the result |
Price | Request a quote for exact motor, winding, shaft, mounting and supply scope |
Applications and Industries
Manufacturer-documented applications include printer and scanner mechanisms, flow-control valves and optical or related adjustment equipment. Treat the motor as an OEM component whose actual suitability depends on load, duty, electrical drive and mechanical integration.
Industrial automation
Review Summary
Consider the standard PM range for a printer, scanner, valve or similar compact mechanism whose loaded motion cycle suits a model-specific torque curve. Preserve diameter, body length, magnet, winding and step-count suffix in the selection. A maximum reference torque or a finer nominal step is not a complete performance specification.
Price and Configuration
Request a quote for the selected configuration,quantity and delivery schedule. Confirm the exact model,options,integration scope and support terms.
