Contact Us
Motors
Accessory
Home Products Brushless DC Motors

28mm Diameter Brushless DC Motor BLDC Motors

This 28mm BLDC motor is designed for applications that require higher torque density and multiple body length options while maintaining stable efficiency behavior across a wide voltage range.

Get a Quote
  • 28mm Diameter Brushless DC Motor BLDC Motors Featured Image
Specs

Key Features

This 28mm BLDC motor focuses on output scaling through motor length rather than gearbox reduction, making it suitable for systems that need torque increase without adding mechanical stages.

  • Φ28 motor platform supports higher magnetic and thermal capacity than smaller BLDC sizes
  • Multiple body lengths allow torque and power scaling without changing motor diameter
  • Wide 6V–48V voltage range supports both low-voltage and industrial DC systems
  • Efficiency-point data provided for realistic operating-point selection
  • Suitable for direct-drive or belt-driven systems where gearbox backlash is undesirable
technical Specs

Motors Specifications

Motor model Voltage No-load At Maximum Efficiency Stall
Current Speed Current Speed Torque Output Efficiency Torque Current
V A r/min A r/min g.cm mN.m W % g.cm mN.m A
BL2838M-01 7.4 0.2 4800 0.85 3900 90 8.83 3.62 57.7 476.3 46.7 3.6
BL2838M-02 12 0.14 6800 0.9 5880 115.5 11.33 6.96 64.3 850 83.4 5.75
BL2838M-03 24 0.14 11800 0.93 10200 156.8 15.38 16.5 73.6 1203 118 6.24

For additional customization or reference configurations, please feel free to contact us.

Why Choose us

SLW Motor Highlights

  • Torque Scaling Without Gear Reduction

    Different motor lengths allow you to increase torque and output power while keeping a direct-drive layout, avoiding gearbox losses and backlash.

  • High-Speed Capability With Predictable Efficiency

    The motor maintains stable efficiency behavior at elevated speeds, supporting applications where continuous rotation speed matters.

  • Wide Voltage Adaptability

    Support for 7.4V, 12V, and 24V variants allows integration into battery-driven, automotive, or industrial DC systems without redesign.

  • Clean Mechanical Envelope for Direct Coupling

    The Φ28 housing and shaft layout support pulleys, couplers, and belt systems where alignment and rigidity are critical.

Custom

Beyond the Standard: Performance Customized

  • 01
    Motor Length Selection Based on Required Torque
    We help determine whether a longer body length is more suitable than adding a gearbox, based on your torque and speed targets.
  • 02
    Direct-Drive Feasibility Review
    We evaluate whether your load can be driven directly by this motor, reducing system complexity and mechanical wear.
  • 03
    Efficiency-Point Matching to Duty Cycle
    We map your operating profile to the maximum-efficiency region to reduce heat buildup during continuous operation.
  • 04
    Thermal Margin Assessment for Continuous Load
    We review expected current draw and duty cycle to ensure the motor stays within safe thermal limits.
  • 05
    Mechanical Integration Check
    Shaft dimensions, mounting method, and wiring exit direction are reviewed against your enclosure and coupling constraints.
  • Motor Length Selection Based on Required Torque
  • Direct-Drive Feasibility Review
  • Efficiency-Point Matching to Duty Cycle
  • Thermal Margin Assessment for Continuous Load
  • Mechanical Integration Check

Custom Now

Related

Explore Our Motor

View All Products

FAQ

Frequently Asked Questions

If you share your available space and the driven load type, we can help narrow the most suitable configuration quickly.

How is this motor different from smaller BLDC models?
The 28mm diameter provides higher torque density and thermal capacity, making it suitable for heavier loads or longer duty cycles.
When should I choose a longer motor body instead of a gearbox?
Choose a longer motor when you need more torque but want to avoid gearbox backlash, noise, and maintenance.
Is this motor suitable for direct drive?
Yes, especially for belt-driven or low-speed direct-drive applications where efficiency and smooth motion are important.
How should I select the voltage version?
Start with your available supply voltage, then match speed and torque at the maximum-efficiency operating point.
What information helps confirm suitability quickly?
Share your target speed, required torque, duty cycle, and available installation space.
Contact Us

Tell us about your project or application, and our team will get back to you with technical support, product recommendations, or a customized motor solution.

    Get Started

    Accelerate Your Project with Precision Motors