Worm Geared Brushed Dc Motor 40mm DC Worm Geared Motor- Suzhou Retek Electric Technology Co., Ltd.

40mm Worm Geared DC Motor: Self-Locking and Right-Angle Drive

The 40mm Worm Geared Brushed DC Motor utilizes a low-voltage DC motor coupled to a right-angle worm gear reducer.

The worm gear configuration is distinguished by two primary features: 1) Right-Angle Output: This provides a compact, space-saving drive solution that is ideal for applications where the motor axis must be perpendicular to the driven shaft. 2) Self-Locking (Irreversibility): At high reduction ratios (typically 20:1 and higher), the worm gear system often becomes self-locking. This means the load cannot back-drive the motor, making it crucial for lifting and positioning applications where the load must be held safely without continuous power or an external brake.

Introduction

Detailed Parameters and Performance Data

RETEK: Fail-Safe Positioning and Compact Actuation

Suzhou Retek Electric Technology Co., Ltd. supplies this worm geared solution for safety-critical positioning applications where the self-locking feature is paramount. We focus on optimizing the gear set materials and machining quality to minimize friction, which is the primary source of efficiency loss in worm gears. The 40mm motor provides the power necessary for intermittent use in small, highly integrated electromechanical systems.

Applications

Advanced Technology Highlights

Safety and Space-Saving Applications for Worm Geared Motors

Lifting Mechanisms: Actuators for light lifts, small industrial oven doors, and vertical slides where the load must be held in place when power is removed. Challenge: Self-locking and fail-safe holding.
Access Control and Barriers: Drives for sliding gates, turnstiles, and automatic door mechanisms.
Packaging Machinery: Drives for indexing tables and material feeding where non-back-drivability is required.
Medical Equipment: Motors for adjusting diagnostic scanner positioners or patient support systems.

Technical Specifications

Industrial & Commercial Usage

Technical Parameters (40mm Worm Geared Motor)

Parameter	Range / Typical Value	Unit
Motor Diameter	40	mm
Gearbox Type	Worm (Right-Angle)	Type
Reduction Ratio Options	5:1 to 500:1	Ratio
Self-Locking Feature	Typically >20:1 Ratio	Characteristic
Efficiency (Running)	Lower (due to sliding contact)	Factor

Additional Information

Supplementary Details & Notes

Integrated Production and Customization Workflow

Production includes precise center distance alignment between the worm and the wheel, which is critical for minimizing backlash and maximizing the contact area for efficiency.

Custom Shaft Output: Providing custom shafts (e.g., single-sided, double-sided, hollow bore) and output keyways/threads.
Mounting Flange: Customizing the gearbox mounting flange or foot brackets for specific installation requirements (e.g., face mount, base mount).
Brush Upgrade: Upgrading the brushed motor component to use precious metal brushes for extended life in very low-current or intermittent applications.
IP Rating: Enhancing sealing with shaft oil seals and specialized gaskets to prevent lubricant leakage and protect the internals from dust and moisture.

Service & Support

Technical Advantages and Core Design Features

Inherent Self-Locking: Provides a zero-power holding function, eliminating the need for an external mechanical brake in most applications.
Compact Right-Angle Design: Allows the motor to be installed perpendicular to the load axis, saving space in machine enclosures.
High Torque Multiplication: Can achieve very high reduction ratios in a single stage, leading to massive output torque from a small motor.
Smooth Output: The high contact ratio of the worm gear provides relatively smooth, low-vibration output rotation.
Simple DC Control: Speed and direction are easily controlled via variable DC voltage, suitable for low-cost drivers.

Frequently Asked Questions

Common Inquiries Regarding Worm Geared Motors

Q: What is the main drawback of using a worm gear motor?
A: Low Efficiency. Worm gears rely on sliding contact, which generates significant friction and heat, especially at high speeds and loads. Running efficiency is often below 50% to 70%, which is much lower than planetary or spur gears.

Q: How do I ensure the self-locking feature works reliably?
A: Self-locking depends on the lead angle of the worm and the friction coefficient. We guarantee the self-locking feature only for reduction ratios above a specified threshold (e.g., 20:1). Systems with high vibration or shock loads may still require a safety brake.

Q: Are these motors suitable for continuous duty?
A: Due to the lower efficiency and heat generation, continuous duty must be carefully assessed. The motor and gearbox are often thermally limited. You must consult the specific duty cycle rating and thermal data for the application.

Resources

Advanced Material Selection Guide

Worm: Usually hardened and ground steel (e.g., 40Cr) for wear resistance.

Worm Wheel (Gear): Often made of bronze or cast iron/brass alloy to reduce friction against the steel worm, though high-strength plastics can be used for very light loads/low noise.

Lubrication: Specialized worm gear oil or high-viscosity synthetic grease, selected to minimize the high friction inherent in the sliding contact. Requires sealing against leakage.

About Suzhou Retek Electric Technology Co., Ltd.

Unlike other motor suppliers, Retek engineering system prevents the selling of our motors and components by catalogue as every model is customized for our customers. The customers are assured that every component they receive from Retek is designed with their exact specifications in mind. Our total solutions are a combination of our innovation and a close working partnership with our customers and suppliers.

As China Worm Geared Brushed Dc Motor 40mm DC Worm Geared Motor Manufacturers and Wholesale Worm Geared Brushed Dc Motor 40mm DC Worm Geared Motor OEM/ODM Suppliers, Retek business consists of three platforms: Motors, Die-Casting and CNC manufacturing and wire harness. Retek products are widely supplied for residential fans, vents, boats, airplanes, medical facilities, laboratory facilities, trucks and other automotive machines.

Welcome to send us an RFQ, it is believed you will get the best cost-effective products and services here!

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Suzhou Retek Electric Technology Co., Ltd.

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