Worm Geared Brushless Dc Motor BL42 42mm BLDC Worm Geared Motor- Suzhou Retek Electric Technology Co., Ltd.

BL42 Worm Geared BLDC Motor: Maintenance-Free, Right-Angle Drive

The BL42 Worm Geared Brushless DC Motor combines a 42mm BLDC motor with a right-angle worm gear reducer, providing a highly reliable and maintenance-free solution with the inherent self-locking capability of the worm gear.

This combination is superior to the brushed DC version in long-term reliability and continuous duty capability. The BLDC motor eliminates brush wear, significantly extending the service life of the entire drive system. It provides high torque at low speed, making it ideal for continuous positioning applications that require a compact, right-angle, self-locking drive that operates quietly and reliably over tens of thousands of hours.

Introduction

Detailed Parameters and Performance Data

RETEK: Long-Life Drive for Automated Infrastructure

Suzhou Retek Electric Technology Co., Ltd. targets the BL42 worm geared solution at infrastructure and automated systems (e.g., solar tracking, automated checkouts) where access for maintenance is difficult or impossible. We utilize high-quality, permanent synthetic lubrication and optimized BLDC commutation via Hall sensors to minimize heat generation, maximizing the efficiency of the inherently lower-efficiency worm gear stage. This solution ensures a reliable, non-back-drivable force in a compact form.

Applications

Advanced Technology Highlights

Reliable, Maintenance-Free Worm Geared Applications

Solar Panel Tracking Systems: Actuators requiring high torque to rotate large panels and guaranteed holding (self-locking) against wind load, with minimal maintenance access. Challenge: Reliability over 20+ years outdoors.
Automated Parking Barriers: Motors for lifting and holding heavy access barriers.
Laboratory Automation: High-reliability, intermittent positioning of heavy lab equipment.
Satellite Dish Positioning: Drives requiring precise angular position and holding capability against wind.

Technical Specifications

Industrial & Commercial Usage

Technical Parameters (BL42 Worm Geared Motor)

Parameter	Range / Typical Value	Unit
Motor Diameter	42	mm
Motor Type	Brushless DC (BLDC)	Type
Max Continuous Torque	Up to 15	Nm (at gearbox output)
Efficiency (Continuous)	Higher than Brushed Worm	Factor
Feedback	Hall Sensor (Commutation)	Type

Additional Information

Supplementary Details & Notes

Integrated Production and Customization Workflow

We perform long-duration thermal run tests on the BL42 worm geared motor to verify that the integrated BLDC motor can handle the thermal load transferred from the gearbox during continuous operation without overheating.

Custom Output Interface: Providing custom hollow-bore shafts, double-shaft extensions, or integrated couplings for direct mechanical interface (e.g., to a lead screw).
IP Rating Upgrade: Certification and upgrade to IP66 standards for full weatherproofing in outdoor installations.
Custom BLDC Winding: Optimizing the BLDC winding for specific high-efficiency points (e.g., maximizing torque at the solar tracker's typical operating speed).
Integrated Encoder: Factory mounting a high-resolution absolute encoder to the worm shaft for precise tracking position monitoring and closed-loop control.

Service & Support

Technical Advantages and Core Design Features

Extended Service Life: Eliminates the wear item (brushes) of DC motors, making the gearbox the only major wear point, significantly boosting the Mean Time Between Failures (MTBF).
Self-Locking Safety Feature: Inherently holds the load without electrical power, crucial for outdoor and vertical applications.
Precise Speed Control: BLDC motor allows for highly stable and efficient speed control across the full RPM range, often via PWM input to the external drive.
Quiet and Clean Operation: No brush noise and the sealed gearbox ensure quiet and contamination-free performance.
Compact Right-Angle Integration: Offers the space-saving benefits of the worm gear with the high efficiency of the BLDC motor.

Frequently Asked Questions

Common Inquiries Regarding BL42 Worm Geared Motors

Q: How does the BLDC motor improve the efficiency of the worm gear?
A: While the worm gear stage itself remains the primary source of loss, the BLDC motor is significantly more efficient than a brushed DC motor at the input stage. This high input efficiency minimizes the power that needs to be generated (and wasted) by the motor itself, resulting in a cooler running overall package.

Q: Why is the self-locking feature so important for solar trackers?
A: Solar trackers are subjected to high wind loads. The self-locking feature ensures that the panels are safely held in position against the load (wind) when the motor is unpowered, preventing damage and maintaining alignment without the need for continuously energized brakes.

Q: Can I use this motor for high-speed indexing?
A: No. Due to the high friction and low efficiency of the worm gear, it is unsuitable for high-speed applications. If speed is critical, a planetary or spur gear with a BLDC motor should be selected.

Resources

Advanced Material Selection Guide

Gearbox Housing: High-strength, corrosion-resistant cast aluminum housing, often with a powder coating for outdoor or harsh environment use.

BLDC Motor Magnets: High-temperature-rated permanent magnets (e.g., ferrite or mid-grade NdFeB) to ensure magnetic integrity despite the heat generated by the worm gear stage.

Seals: Double-lip oil seals on the output shaft to ensure zero lubricant leakage over the long operational life. Protection against fluid ingress from the environment.

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 Brushless Dc Motor BL42 42mm BLDC Worm Geared Motor Manufacturers and Wholesale Worm Geared Brushless Dc Motor BL42 42mm BLDC 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!

Customized Solutions

Quality Assurance

Global Export

Suzhou Retek Electric Technology Co., Ltd.

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