ZERO-MAX 6-37 COUPLER 637

Description:

The Zero-Max 6-37 is a composite disc (CD) flexible shaft coupling designed for zero-backlash torque transmission in precision motion systems. It uses a disc-pack design (no elastomers) to transmit torque while accommodating shaft misalignment. This ensures high torsional stiffness, long service life, and consistent performance in demanding industrial applications. The “37” size indicates a higher torque capacity than smaller models like 6-30.

Applications:

The Zero-Max 6-37 coupling is used in servo motors, CNC machines, packaging equipment, printing presses, and automation systems. The Zero-Max coupling is commonly installed in high-speed or reversing applications where precise positioning, smooth torque transfer, and minimal backlash are required.

Technical Specifications:

• Manufacturer Part Number (MPN): 6-37 / 637
• Product Type: Composite Disc Flexible Coupling
• Brand: Zero-Max
• Continuous Torque: ~1,600 in-lbs (≈181 Nm)
• Peak Torque: ~3,200 in-lbs
• Max Speed: ~7,400–8,000 RPM
• Bore Range: Up to ~2.0 inches (variant dependent)
• Misalignment: Angular (~2–3°), parallel (~0.013"), axial (~0.07")
• Design: Zero-backlash composite disc pack
• Function: Torque transmission with misalignment compensation
• Construction: Steel or aluminum hubs (variant dependent)

Common Replacements:

• Zero-Max 6A37 (single-flex version)
• Zero-Max 6P37 (double-flex version)
• R+W / Lovejoy disc couplings (similar torque class)