21 SERIES SLEWING RING BEARING

“L”-DESIGN TO SAVE WEIGHT: FOUR-POINT CONTACT, SINGLE-ROW BALL SLEWING RING BEARINGS

• Four-point contact, single-row ball slewing ring bearing series
• Designed for applications where reducing weight and installation space are priorities
• Available in plain, internally geared and externally gear versions
• Lightweight "L" cross section helps reduce system weight and package size in space-constrained designs
• Available in a variety of mounting configurations
• Available in raceway diameters of 13-57 inches. Other sizes are available upon request.
• Other: 
  • Externally geared models combine a rectangular outer ring with a flanged inner ring for added structural support
  • Internally geared models combine a rectangular inner ring with a flanged outer ring to optimize strength and packaging
  • The mounting surface must conform to defined standards for flatness and strength.
  • Contact the factory for assistance in sizing this bearing.
  • This series comes with induction hardened raceways. Geared versions can be provided with induction hardened teeth.
  • Matching pinions are available for all standard bearings.

The 21 Series is optimized for applications where weight and packaging are priorities. If maximum structural rigidity, moment capacity, and long-term durability are more important than minimizing weight, explore our 30 Series slewing ring bearings.

CAPACITIES:

• Thrust: 7,000 to 1,100,000 pounds
• Moment: 1,400-390,000 foot-pounds
• Radial: 400-150,000 pounds

For more information on the 21 Series slewing ring bearing or to request a quote, contact SlewPro today.

PARTS CROSS REFERENCE

PRODUCT SERIES: