Internal Gears


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Rhino Gear makes internal spur gears for a wide range of equipment applications, whether your need is custom or off-the-shelf.

Internal spur gears, also known as ring gears, have the same standards as an external spur gear except that the teeth are cut into the inside diameter while the outside is kept smooth. Internal gears can provide a compact solution that delivers large speed reductions and reduced sliding wear action. When it's necessary to have two parallel shafts rotate in the same direction, internal gears eliminate the need for an idler gear. Internal gears can be applied in a wide range of equipment and applications.


  • Inner diameter range: 1” to 34”
  • Diametric pitch: 3 to 64 (8.5–0.4 module)
  • Face width range up to 6”
Rhino Gear Internal Gear


Two SlewPro Slewing Rings

Slewing Rings

Our slewing rings range from small, single row to large, triple roller bearings.
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Two SlewPro Gears


Small- to mid-sized OEMs trust Rhino Gear to meet both custom and standard gear orders.
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SlewPro Slewing Drives

Slewing Drives

Our slewing drives cross over all major brands and come in a range of design options.
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Case Study: SlewPro Partnership Saves Time & Money

When Wolf Robotics needed a quick turnaround on a new slewing bearing for a special project in 2017, SlewPro was the only company able to meet the time and specification requirements. The project met all requirements and was on budget, earning more trust from Wolf Robotics’ engineering team.

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