SlewPro slewing ring
Slewing Rings


Slewing Ring


Potesta & Company is pleased to offer everything from small, single-row ball slewing ring bearings for light-duty applications to large, triple-roller slewing rings for demanding heavy applications and geared bearings for everything in between.

These small and large slewing bearings, which are designed in the U.S., built to U.S. standards and supported by in-house experts, can cross over all major brands for an exact fit. Can’t find exactly what you need? Our team of engineers provides slew ring bearing designs for your application.

What You Can Expect From SlewPro Slewing Rings:

  • Dependable Delivery: Customize your slewing ring bearing order with inventory and fulfillment services such as just-in-time delivery, private labeling, blanket orders and scheduled releases.
  • Technical Support: Our team of engineers provides slewing ring application engineering solutions such as 3D modeling, 2D drawings, FEA and technical manual assistance.
  • High Quality: SlewPro high-quality slewing ring bearings are closely monitored throughout the manufacturing process, meeting or exceeding the quality of all major brands.
  • Fair Prices: Leveraging the power of the global economy keeps you on budget

Slewing Ring Features

Slewing ring bearings are designed for large load-bearing capability and can manage a full range of heavy-duty mechanical equipment. These devices have the capacity for horizontal, vertical or inclined operations of many varied applications. Each element may be custom designed to work independently or harmonize with existing equipment.

The variables of slewing ring bearings depend on the application, weight and intended function of the equipment. Variable features may include:

  • Single, double, or triple row bearing design for light, heavy, and massive loads
  • Choices of mounting configurations
  • Ball or cross roller designs
  • Sizes and location of bolt holes

Slewing Ring Applications

In different sizes and designs, slewing ring bearings turn heavy-duty cranes, offshore drilling equipment and medical diagnostic devices. Customized slewing devices operate:

  • Drilling equipment
  • Wind power devices
  • Mobile robotics extensions
  • Satellite equipment and mobile arms on spacecraft
  • Space tracking equipment
  • Solar tracking devices
  • Packaging and bottling devices
  • Medical packaging equipment
  • And much more

For more information on specific slewing ring products, please see the links below.

21 Series
21 Series
30 Series
30 Series
40 Series
40 Series
45 Series
45 Series
50 Series
50 Series
100 Series
100 Series

Interested in learning more about our slewing ring bearings or other precision-crafted products? Request a quote or contact us to speak with an expert directly.




Our slewing bearings range from small, single-row to large, triple-roller bearings.

View Slewing Rings


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

View Gears


Our slewing drives cross over all major brands and come in a range of design options

View Slewing Drives


SlimPro thin section bearings are designed to solve the most demanding bearing challenges.

View thin section bearings
SlewPro Bearings

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.

Download Case Study