• New!

0.21 N.m NEMA 17 Open-Loop Stepper Motor

Available for backorder
  • Weight
    0.2 kg
  • SKU

Single shaft NEMA 17, 2 phase bipolar stepper motor with 0.21 N.m of holding torque. Rated at 1 A phase current, weighing 0.2 kg with 33 mm body length and 5 mm shaft diameter.

Buy more for less:
Quantity ex GST incl GST Saving
1-4 items AUD60.48 / each AUD66.53 / each  
5-9 items AUD54.44 / each AUD59.88 / each save 10%
10 or more items AUD51.41 / each AUD56.55 / each save 15%
  • AUD60.48 ex GST
  • AUD66.53 incl GST

The 42CM02-1A is a 2 phase NEMA 17 stepper motor with 0.21 N.m (30 oz-in) holding torque. It can be implemented in many Industrial motion control applications. Built with premium quality materials including bearings and shaft made by Japanese manufacturers, this 42CM02-1A stepper motor can move the attached load at high precision and with very low motor heating & vibration.

Industrial grade small stepper motor, ideal for small CNC projects and robots. Has a holding torque of 0.21 N.m. 5 mm diameter round shaft. This NEMA 17 frame motor is 42 mm square on the face, with four M3 taped holes. The mounting holes are 31 mm from center to center.


  • Built with high quality materials including bearings
  • High precision, low motor heating, and low vibration

Step angle: 1.8°

Temperature rise (Max): 80 °C 

Ambient temperature: -10 to 50 °C 

Insulation Resistance (at 500 VDC): 100 MΩ 

Shaft radial play (450 g load): ≤0.02 mm 

Shaft axial play (900 g load): ≤0.08 mm 

Current per phase: 1.0 A

Resistance per phase: 1.4 Ω 

Inductance per phase: 1.4 mH

Holding torque: 0.21 N.m

Number of leads: 4

Rotor inertia: 0.035 kg-cm2 

Weight: 0.2 kg

Body length: 33 mm

Faulty Goods and Warranty

Where such goods have been supplied we undertake to repair or replace them as quickly as possible.Prior to returning faulty items, please contact us with a description of the fault as one of our engineers might be able to assist you by resolving the issue over the phone.
A Warranty form must be filled out and returned with any goods.

Our standard warranty period is 12 months from the date of purchase unless stated otherwise.

Other warranty periods:

Labjack Products: 5 Years
Atop Products: 3 Years
MeanWell Products: 3 Years
Terracom Products: 3 Years

Warranty is subject to us being satisfied that a defect was caused by defective workmanship or materials and was not caused by or was not substantially contributed to by other factors beyond our control including incorrect installation, alterations or modifications of the product not recommended by the manufacturer.

Returns Policy

If you are dissatisfied with our goods you may return them within 14 days of the dispatch date. Contact us for an authorisation and we will refund your purchase less shipping costs and restocking fees. All returned goods MUST be in AS NEW condition including ALL PACKAGING and DOCUMENTATION / MANUALS etc.

Please note:

  • The product returned will attract a 20% restocking fee.
  • The customer must pay the delivery costs.
  • Non standard, custom made or a specially manufactured or imported products are not returnable.
  • Semiconductors, books and software are not refundable

Full Terms and Conditions

By placing an order with Ocean Controls, you agree to be bound by our Terms and Conditions of Trade.

Related products

Drop items here to shop
Product has been added to your cart

Customers who viewed this product bought

  • Wire Type K Thermocouple
    Wire Type K Thermocouple
    SKU: MET-037
    In stock (13 items available)
    • AUD10.86 ex GST
    • AUD11.95 incl GST