Planetary Geared Brushless Dc Motor BL57 57mm BLDC Geared Motor- Suzhou Retek Electric Technology Co., Ltd.

BL57 Planetary Geared Motor: Industrial Torque Density

The BL57 Planetary Geared Brushless DC Motor integrates a high-performance 57mm (NEMA 23 size) BLDC motor with a robust planetary gearhead.

This combination is designed for medium-to-heavy industrial applications requiring high output torque, precise speed control, and the long, maintenance-free life characteristic of BLDC technology. The 57mm motor provides ample power (100W to 400W), and the planetary gearbox converts this power into the necessary force, achieving output torques often exceeding 50 Nm with multi-stage reduction. The overall package is compact and highly efficient.

Introduction

Detailed Parameters and Performance Data

RETEK: Optimized Industrial Servo Drive Solutions

Suzhou Retek Electric Technology Co., Ltd. focuses on manufacturing the BL57 geared solution to meet the rigorous demands of factory automation and machinery building. We ensure the gearhead's input flange is perfectly aligned with the motor shaft, minimizing noise and maximizing gear mesh efficiency and lifespan. This integrated solution simplifies machine design, reduces assembly time, and provides a guaranteed performance envelope for torque and speed, backed by Hall sensor feedback for standard commutation.

Applications

Advanced Technology Highlights

Medium-to-Heavy Applications for BL57 Geared Motors

Conveyor Belt Drives: Motors for medium-load transport systems requiring precise speed and stop/start indexing. Challenge: High inertia and starting torque.
Industrial Actuators: Linear and rotary actuators for clamping, pressing, and positioning heavy components.
Packaging Machinery: Motors for sealing jaws, carton erectors, and palletizing feeders requiring high peak torque.
Agitation and Mixing: Drives for industrial fluid mixers and powder handling equipment.

Technical Specifications

Industrial & Commercial Usage

Technical Parameters (BL57 Geared Motor)

Parameter	Range / Typical Value	Unit
Motor Diameter	57	mm
Gearbox Type	Planetary, Steel Gears	Type
Max Continuous Torque	Up to 50	Nm (at 48VDC)
Reduction Ratio Options	4:1 to 256:1	Ratio
Max Radial Load	Optimized High	N

Additional Information

Supplementary Details & Notes

Integrated Production and Customization Workflow

Production includes gear-tooth surface finishing (honing/lapping) to reduce friction and noise. The complete unit is tested for overall efficiency, temperature rise, and acoustic signature.

Low-Temperature Grease: Custom lubrication options (e.g., low-viscosity synthetic grease) for operating environments below −10∘C.
Custom Output Flange: Design and manufacture of specific mounting interfaces (e.g., square face, round C-face, bolt pattern) to match the client's machine frame.
Encoder Integration: Factory-mounted incremental or absolute encoders with pre-configured cabling for immediate use in servo applications.
Brake Integration: Seamless integration of an industrial electromagnetic brake rated to hold the output torque of the gearbox.

Service & Support

Technical Advantages and Core Design Features

Exceptional Torque Output: High reduction ratios enable output torque suitable for driving significant loads in a continuous duty cycle.
Low Backlash Options: Precision-machined gear options are available for applications requiring minimal angular error (e.g., ≤15 arc-minutes).
High Efficiency: The planetary design offers superior efficiency over right-angle worm drives, especially at higher speeds, maximizing battery life or minimizing power consumption.
IP-Rated Sealing: The integrated unit is often available with enhanced sealing to withstand industrial environments, dust, and washdown procedures.
Maintenance-Free BLDC: The motor lifespan is limited only by the bearing life, providing decades of service under normal operating conditions.

Frequently Asked Questions

Common Inquiries Regarding BL57 Geared Motors

Q: Can I achieve higher positional accuracy than the Hall sensors allow with this geared motor?
A: Yes. For high-precision positioning, the Hall sensors are only used for motor commutation. A high-resolution incremental or absolute encoder must be added to the rear of the motor shaft, allowing the servo drive to control the final output position to a fraction of a degree.

Q: What is the limiting factor for the life of the geared motor?
A: The life is typically determined by the gear wear (fatigue and pitting) or the bearing life. Operating the motor above its rated continuous torque, or exceeding the rated radial/axial load on the output shaft, will drastically reduce its service life.

Q: Is an electromagnetic brake available for the BL57 geared motor?
A: Yes. Spring-applied, power-off holding brakes can be integrated between the motor and the gearbox, or on the motor's rear shaft, to provide fail-safe holding torque for vertical loads.

Resources

Advanced Material Selection Guide

Gearbox Housing: High-strength aluminum or steel alloy casing, providing structural support and acting as a heat sink for the gears.

Gears: Uses high-module, precision-ground alloy steel gears (e.g., 40Cr or 20CrMnTi) that are carburized and hardened to ∼58 HRC for maximum wear resistance and torque transfer.

Output Shaft: Large diameter, hardened steel shaft to handle the multiplied torque and high lateral loads without deflection.

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 Planetary Geared Brushless Dc Motor BL57 57mm BLDC Geared Motor Manufacturers and Wholesale Planetary Geared Brushless Dc Motor BL57 57mm BLDC 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

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Suzhou Retek Electric Technology Co., Ltd.

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