NEMA 17 Planetary Gear Stepper Motor 47mm 12V 24V 420mN.m Holding Torque

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KC-42HB-47L Nema 17 Planetary Gear Stepper Motor Specifications

The KC-42HB-47L represents a precision-engineered planetary gear stepper motor solution designed for industrial automation where space constraints require high torque density. As a specialized nema 17 stepper motor with gearbox, this unit integrates a 1:5.18 reduction planetary gear system, effectively multiplying the holding torque of the base 42 mm stepper motor to meet demanding load requirements in CNC machinery, 3D printers, and automated medical instrumentation. Engineers selecting a nema 17 planetary gearbox assembly often prioritize the balance between axial compactness and output force, which this model optimizes through a rigid gear train architecture.

Utilizing the industry-standard Nema 17 footprint, the nema 17 stepper motor serves as the foundation for this assembly. Unlike standard motor configurations, the planetary arrangement distributes the load across multiple satellite gears, ensuring superior durability and reduced backlash compared to spur gear alternatives. While many market alternatives focus on general-purpose hardware, this high quality nema 17 stepper motor is built with controlled tolerances for consistent performance in continuous duty cycles. Integration into complex motion control systems is streamlined by the standardized 4-lead bipolar wiring configuration, ensuring compatibility with standard microstepping drivers.

Regarding configuration versatility, while standard nema 17 8mm shaft variants exist for high-load industrial spindles, the KC-42HB-47L is specifically configured with a 6mm D-cut shaft to maintain structural integrity within the planetary carrier interface. This selection optimizes the rotational balance at the gear output. For applications requiring specific step resolution, users often evaluate the nema 17 stepper motor 0.9 degree profile for finer increments; however, this 1.8-degree unit, when multiplied by the 5.18 gear reduction, yields an effective step resolution of approximately 0.347 degrees per step, providing high precision suitable for most automated positioning tasks. The strongest nema 17 stepper motor profiles are defined not just by raw stall torque, but by the ability to maintain torque at high speeds—a metric where this geared system excels due to the mechanical advantage of the reduction ratio.

General Electrical and Motor Performance Specifications

Mechanical and Gearbox Dimensional Parameters

Outline Dimensions

Performance Advantages

• Optimized Torque Density: The 1:5.18 planetary reduction significantly enhances holding torque to 420 mN·m, facilitating reliable movement in high-friction or high-load applications.
• Precise Positioning Capability: The integration of a stepper motor with a 1.8° step angle and precise gearing provides improved resolution, enabling accurate step increments necessary for motion control.
• Durable Gear Train: Planetary mechanisms distribute mechanical stress across three or more satellite gears, which mitigates tooth wear and ensures extended operational longevity compared to spur gear assemblies.
• Compatible Integration: The standard 42 mm frame size and 4-lead wiring configuration allow for straightforward installation with common bipolar stepper drivers and existing Nema 17 motor mounting brackets.
• Application Versatility: Suited for diverse environments ranging from medical analysis equipment requiring smooth motion to 3D printing and CNC laser platforms demanding consistent holding force.

Industry Keywords

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