Overview
The Zero-Max CD Coupling Model 6-26 is a precision composite disc flexible coupling engineered for high-performance industrial applications. These couplings are ideal for machinery requiring zero-backlash torque transmission with substantial misalignment compensation. The Model 6-26 is available in multiple configurations (single-flex, double-flex, and clamping variants) to suit different installation requirements.
Key Features
- Composite Disc Construction — Zero-backlash design with fiberglass-reinforced composite discs for durability and shock absorption
- High Torsional Stiffness — Provides precise torque transmission with minimal windup for servo and precision applications
- Superior Misalignment Capacity — Accommodates up to 3 degrees angular misalignment and axial offsets
- Compact Footprint — Minimal axial length enables integration into tight installation spaces
- Multiple Hub Options — Available with set-screw steel hubs, aluminum clamp hubs, and floating-shaft configurations
Technical Specifications
The following specifications apply to Zero-Max CD Model 6-26 couplings:
- Continuous Rated Torque: 475 in-lbs (53 Nm)
- Angular Misalignment Capacity: 3 degrees
- Axial Misalignment: 0.043 to 0.086 inches (1.1 to 2.2 mm) depending on configuration
- Hub Body Diameter (A): 1.50 inches (38.1–38.2 mm)
- Hub Body Diameter (B): 2.16 inches (54.9 mm)
- Distance Between Shaft Ends (C): 0.31 to 1.04 inches (7.9 to 26.4 mm) depending on configuration
- Hub Length: 1.06 inches (26.9 mm)
- Inside Diameter of Disc-Pack: 1.00 inch (25.4 mm)
- Maximum Speed: 9,500 to 11,500 RPM (varies by hub type)
- Design: Composite disc with fiberglass reinforcement
Typical Applications
- Servo motor and drive shaft couplings in automated machinery
- Precision positioning and motion-control systems
- Industrial indexing and conveyor equipment
- Robotics and stepper motor applications
- Medical and laboratory instrumentation
- General industrial transmission where zero-backlash is required
Compatibility & Replacements
Compatible With
- Stepper motors and servo drives requiring zero-backlash coupling
- Standard 1.50-inch (38.1 mm) bore shafts and 2.16-inch (54.9 mm) bore applications
- Industrial automation platforms requiring composite disc coupling interface
- Motion-control systems tolerating misalignment of 3 degrees angular offset
Replaces / Drop-In Replacement For
- Other Zero-Max 6-series composite disc couplings with equivalent bore and shaft specifications
- Generic industrial disc couplings with matching hub diameters and torque ratings
- For specific cross-replacement compatibility, consult manufacturer documentation or your system integrator
Works With
- Stepper motors and servo motors (NEMA 34, 56 frame sizes and larger)
- Drive shafts with 0.250-inch to 0.625-inch bore diameters (hub-dependent)
- Industrial control systems using flexible shaft coupling interfaces
- Set-screw and clamping hub installation methods for secure mounting
