Servo Couplings
Pacific International Bearing Sales offers a comprehensive selection of Ruland servo couplings engineered for precision motion control applications. Available in rigid, beam, bellows, curved jaw, disc, and Oldham styles, these zero-backlash couplings are designed to address key performance factors such as shaft misalignment, torque, speed, and space constraints. With a wide range of sizes and materials, users can find the ideal coupling to meet their specific application needs. All Ruland servo couplings are proudly manufactured in Marlborough, MA for consistent quality and reliability.
Brand
Note
Length (L)
O.D. (D)
Material
Bore (B1)
Bore (B2)
Keyway
B1 Max Shaft Penetration
B2 Max Shaft Penetration
Bore Tolerance
Screw Material
Screw Finish
Forged Clamp Screw
ISO 9001:2015
REACH
RoHS3
Conflict Minerals
Tariff Code
Product Group
Keyway (K1)
Keyway (K2)
Bore (B1)
Bore (B2)
O.D. (D)
Length (L)
Product
Files
Price
FREQUENTLY ASKED QUESTIONS
A servo coupling is a precision shaft coupling designed for servo and stepper motor systems. It transmits torque while maintaining accurate positioning and addressing factors such as misalignment, speed, and system stiffness.
This category includes Ruland servo couplings in rigid, beam, bellows, curved jaw, disc, and Oldham styles, giving designers options to match torque capacity, misalignment capability, and space constraints.
Most servo coupling styles, such as beam, bellows, disc, jaw, and Oldham—provide defined angular, parallel, and/or axial misalignment capacity. This helps protect bearings, reduce vibration, and maintain smooth motion in servo-driven equipment.
Yes. Ruland servo couplings are engineered as zero-backlash components, ensuring precise torque transmission and repeatable positioning in closed-loop motion control systems.
These couplings are used in a wide range of precision motion control applications, including robotics, packaging machinery, medical devices, semiconductor equipment, and other systems where positioning accuracy, high speed, and reliability are critical.
All Ruland servo couplings offered in this category are manufactured in Marlborough, MA, ensuring consistent quality, tight tolerances, and reliable performance from lot to lot.
Product Added to Cart and Back Orders
Product Added to Back Orders
15 items added to cart, can be ordered and shipped today.
Within 24 hours, our sales team will contact you about the 10 Back Ordered products.
Feel free to contact us for more info - 1-800-228-8895
PIB Sales will contact you within 24 hours regarding your 25 Back Ordered items









Short Rigid Couplings
Controlflex Couplings
Jaw Couplings
Oldham Couplings
Bearing Locknuts – TCN
Double Wide Shaft Collars
Heavy Duty Shaft Collars
International Series Shaft Collars
Keyed Shaft Collars
Mountable Shaft Collars
Quick Clamping Shaft Collars
Set Screw Shaft Collars
Thin Line Shaft Collars
Threaded Shaft Collars – Pacific International Bearing Products
Two-Piece Shaft Collars
Friction Bearing Universal Joints
Needle Bearing Universal Joints