Newly Re-designed P-Series Gearbox improves Backlash, Corrosion Resistance and Center Distance between Input and Outputs! 

Metal Servo-Beam Coupling

Ondrives.US has been designing and manufacturing high precision zero-backlash couplings and other motion transfer components for over 30 years. Patented LCS and LCG Servo-Beam™ couplings provide the flexibility of a bellows coupling with the torsional stiffness and strength of a disc coupling, making them ideal for servo/drive applications and numerous other uses.

Order the metal servo couplings your application requires, request a quote, or contact Ondrives.US for more information.

High Performance, Cost-Efficient Replacement for Bellows Couplings

Ondrives.US’ Servo couplings are highly effective and cost-efficient replacements for bellows couplings. They provide the same performance and flexibility at roughly half the price.

Servo-Beam™ couplings are true servo couplings and are engineered for superior torsional rigidity (comparable to disc couplings), zero-backlash coupling, high RPM performance, and long working life. Rated for speeds up to 10,000 RPMs, they can operate at up to 7° angular compensation and with up to 300 in-lbs. of torque.

Manufactured with 420 stainless steel flexible beams and 416 stainless steel hubs (LCS models) or aluminum hubs (LCG models).

Couple to almost any shaft diameter with Ondrives.US Bore Reducers.

Attach your zero-backlash coupling to an Ondrives.US Precision Ground Shaft, available from stock.

For full specifications and Dimensional Parametric Search, see individual product listings.

Customized metal servo couplings are available to better meet your performance requirements. Contact our application engineers to discuss your unique needs.


The Ondrives.US Advantage:

  • Up to 7° angular compensation
  • Zero backlash Coupling
  • Up to 10,000 RPM
  • Up to 300 in-lbs. torque
  • The flexibility of a bellows coupling
  • Torsional stiffness & strength of a disc coupling
  • 420 stainless steel flexible beams
  • Aluminum (LCG) or stainless steel (LCS) hubs
  • Bore sizes from 1/8” to 32 mm
  • Optional bore reducers allow the coupling to almost any shaft diameter
  • Made in the U.S.A.

Ondrives.US quality surpasses the competition! Order LCG or LCS couplings for your application, request a quote or contact us for more information.