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A silver NEMA 42 stepper motor with a 40 tooth brass gear attached

YINGHUA

YINGHUA 42-40 Stepper Motor 40 Teeth Brass Gear 3D Printer Accessory

SKU CH-VT5X-2R6SP

Stepper motor with 40-tooth brass gear drives extrusion on compatible 3D printers

  • Stable extrusion from 40-tooth brass gear
  • Precise 1.8-degree steps prevent missed layers
  • Compatible with Ender-3, Ender-5 and CR-10 series
  • 4 Nm torque drives filament at 1.5 A
  • Operates reliably from -20 to 50 °C

Stepper motor with 40-tooth brass gear

The YINGHUA 42-40 stepper motor integrates a 40-tooth brass extrusion gear for direct-drive extrusion on compatible 3D printers. It operates with a 1.8-degree step angle, 1.5A current rating and a rated torque of 0.4NM across a 1-1000rpm speed range. The metal construction supports stable, low-noise operation without lost steps during printing.

Suited for Ender and CR-series printers

This motor fits Ender-3, Ender-3 Pro, Ender-5 and multiple CR-series models including CR-10, CR-5 and CR-3040 variants. Builders using other printer architectures or requiring a different gear ratio should verify compatibility before purchasing. The fixed 40-tooth brass gear cannot be swapped for alternative tooth counts.

1.8-degree step angle and 0.4NM torque

The motor delivers a 1.8-degree step angle with a holding torque of 0.4NM at 1.5A and 4.83V. This specification determines whether the extruder can maintain precise filament control at your chosen print speeds. Confirm that your printer's driver and firmware settings match these electrical and mechanical parameters.

Highlights

  • Stable extrusion from 40-tooth brass gear
  • Precise 1.8-degree steps prevent missed layers
  • Compatible with Ender-3, Ender-5 and CR-10 series
  • 4 Nm torque drives filament at 1.5 A
  • Operates reliably from -20 to 50 °C

Specifications

No published specifications for this item yet.

Questions about this item

How can I verify the 1.8 degree step angle is working correctly after installation?

Rotate the motor shaft by hand; it should move in distinct 1.8 degree increments. Under power, the motor should run smoothly at 1-1000 rpm with no missed steps and maintain the 0.4 Nm torque rating.

What comes in the package and is a mounting bracket included?

The box contains one complete stepper motor set with the 40-tooth brass extrusion gear pre-installed. No separate mounting bracket, wiring harness or driver board is included.

Which motor version suits an Ender-3 versus a CR-10S?

The single 42-40 model with 1.5 A current rating and 4.83 V nominal voltage fits all listed printers including Ender-3, Ender-3 Pro, Ender-5, CR-10 and CR-10S.

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