Overview
The Zero-Max SC035 ServoClass double-flex coupling is engineered for precision servo motor applications demanding high reverse-load capacity and repeatable positioning accuracy. This lightweight, one-piece assembly accommodates shaft misalignment while preserving the low backlash and hysteresis required in CNC machine tools, packaging equipment, and automated motion control systems.
Key Features
- Zero backlash and low hysteresis for repeatable precise positioning
- Double-flex design with composite disc elements for fatigue resistance
- Accommodates angular (±1°), parallel (0.0090″), and axial (0.0200″) misalignment
- Rated for 10,000 RPM maximum speed and 53 in-lbs operating torque
- One-piece assembly reduces weight and complexity in servo systems
- Compatible with AC and DC servo motors in high-precision applications
Technical Specifications
- Coupling Type: Double-Flex Composite Disc
- Operating Torque: 53 in-lbs (61.11 kg-cm)
- Maximum Speed: 10,000 RPM
- Torsional Stiffness: 402 in-lb/deg (757 mN-m/arcmin)
- Axial Stiffness: 320 lbs/inch (56 N/mm)
- Bore Diameter Range: 0.250″ to 0.750″ (6 to 19 mm)
- Standard Bore: 0.375″ (9.52 mm)
- Coupling Diameter: 1.54″ (39.12 mm)
- Coupling Length: 1.85″ (46.99 mm)
- Hub Length: 0.610″ (15.5 mm)
- Angular Misalignment: ±1°
- Parallel Misalignment: 0.0090″ (0.2286 mm)
- Axial Misalignment: 0.0200″ (0.5080 mm)
- Inertia: 0.092 lb-in (2.68 × 10⁻³ kg-m²)
- Clamp Screw Size: M4
Typical Applications
- CNC machine tool servo positioning systems
- Packaging and printing equipment automation
- High-speed stepper and servo motor drives
- Robotics and automated assembly systems
- Precision motion control in pharmaceutical and semiconductor manufacturing
- Instrumentation and test equipment requiring repeatable accuracy
Compatibility & Replacements
Compatible With
- Rockwell Automation servo drives and control systems
- Siemens SIMOTICS servo motors
- Mitsubishi servo motor systems
- Omron motion control platforms
- Beckhoff and Beckhoff-compatible TwinCAT systems
- AC and DC servo motor applications up to 10,000 RPM
Replaces / Drop-In Replacement For
- Zero-Max SC035R (standard configuration)
- Older flexible couplings in the same size/torque class requiring upgrade to lower backlash
Works With
- Studio 5000 Logix Designer (motion module configuration)
- TIA Portal (Siemens S7-1200/1500 motion control)
- EtherCAT real-time automation networks
- PROFINET industrial ethernet motion systems
- CANopen servo drive communication
