Overview
The Ruland PCMR25-10-10-SS is a clamp-style four beam flexible coupling machined from a single piece of 303 stainless steel. Designed to accommodate 10mm x 10mm bores, this coupling showcases a robust outer diameter of 25.4mm and a precise length of 31.8mm. This coupling is engineered for motion control and light-duty industrial applications requiring precise torque transmission with minimal backlash.
Key Features
- Zero-backlash construction from 303 stainless steel ensures high torque capacity and durability.
- Balanced design effectively reduces vibrations at high speeds, making it ideal for applications reaching up to 6,000 RPM.
- Two sets of two spiral cuts give it higher torque capacity, lower windup, and larger body sizes than single beam couplings.
- Corrects angular misalignment up to 3 degrees, parallel misalignment up to 0.38 mm, and axial motion up to 0.25 mm.
- Clamp-style mount can be installed or replaced without moving the shafts, which eases installation.
- Single-piece construction provides longer service life than couplings with moving parts.
Technical Specifications
- Bore Size: 10mm x 10mm
- Outer Diameter: 25.4mm
- Length: 31.8mm
- Material: 303 Stainless Steel
- Fastening Style: Clamp (M4 screw)
- Maximum RPM: 6,000
- Backlash: Zero-backlash design
- Angular Misalignment Tolerance: ±3°
- Parallel Misalignment Tolerance: ±0.38 mm
- Axial Motion Tolerance: 0.25 mm
- Hardware: Metric, tests beyond DIN 912 12.9 standards
- Manufacturing: Machined in the USA under stringent quality controls
- Compliance: RoHS3 and REACH compliant
Typical Applications
Typical applications include encoders, stepper motors, robotics, measuring instruments, servo systems, pumps, valves, and fans. The coupling’s zero-backlash design and high-speed capability make it ideal for precision automation, industrial motion control, and applications where shaft misalignment compensation is required without mechanical play.
Compatibility & Replacements
Compatible With
- 10mm diameter shafts (both sides)
- Stepper motors and servo motor applications
- Precision positioning and motion control systems
- Encoder and feedback device connections
- Light-duty industrial automation equipment
Replaces / Drop-In Replacement For
- Ruland PCMR25-10-10-A (aluminum alternative)
- Other four-beam stainless couplings with matching bore and OD specifications
Works With
- Clamp-style coupling installation hardware (M4 cap screws)
- Systems requiring DIN-compliant fastening
- RoHS3 and REACH-compliant automation equipment
- High-speed servo and stepper motor drive systems
