Gear Box

A gear box houses a set of gears that changes the speed, torque, or direction of rotational power between a motor and the driven load. 3BG Supply stocks gear boxes and gear reducers to pair with our electric motors, giving you a matched drive package instead of sourcing components from multiple suppliers. Browse the full gear and gear rack line, or contact our team for help sizing a gear box to your load.

Find the right Gear Box for your needs.

  • Brand
  • Category
  • Enclosure Width MM
  • Enclosure Width Inch
  • Bore / Inner Diameter Inch
  • Bore / Inner Diameter MM
  • Frame
  • Type
  • Frequency
  • Enclosure Length Inch
  • Enclosure Length MM
  • Enclosure Height Inch
  • Enclosure Height MM
  • Ratio
  • Input RPM
  • Size
  • Material
  • Torque Capacity Lb/Inch
  • Application
  • Price

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    FAQs

    What is a gear box used for?

    A gear box is used to adjust the speed and torque output of a motor to match what a piece of equipment actually needs, since most electric motors run far faster than driven loads like conveyors, mixers, or augers require. It also allows the direction of rotation to be changed where needed.

    What's the difference between a gear box and a gear reducer?

    The terms are often used interchangeably, and in practice most industrial gear boxes are gear reducers, meaning they reduce motor speed while increasing torque. See our gear reducer category for the specific reduction ratios and configurations 3BG Supply stocks.

    What types of gear boxes does 3BG Supply carry?

    3BG Supply stocks a range of gear box and gear reducer configurations, including worm, helical, planetary, and right angle designs, to fit different mounting orientations and torque requirements. Our team can help match a configuration to your existing footprint.

    How do I choose the right gear box for my application?

    Start with your required output torque, input speed, and reduction ratio, then factor in mounting orientation and shaft configuration (inline, right angle, or hollow shaft). Our experts can review your application details and recommend a suitable gear box or reducer.

    Can a gear box be paired with any electric motor?

    A gear box needs to match the motor's frame size, shaft diameter, and horsepower rating, so not every combination will bolt up cleanly. Browse our electric motors category or contact us to confirm compatibility before ordering.

    Industrial Gear Box Manufacturers