Diaphragm turning chuck

pullback colletsteelhigh-precision

Product Overview
Universal Gear (UG) Diaphragm Chucks are high-precision diaphragm-style chucks designed for longer production runs with infrequent changeovers. The UG system adapts to multiple gear configurations while requiring minimal top tooling. Changeover between gear types is fast and can be completed in minutes. Diaphragm chucks contain no sliding or wearable components, reducing downtime and maintenance costs.

Advantages

• No sliding parts — eliminates friction and wear, lowering maintenance requirements.
• Spring-steel diaphragm generates chucking pressure on internal or external surfaces for controlled concentricity.
• Consistent, repeatable accuracy across production runs.
• Pull-back action against fixed stops ensures positive and repeatable location.
• Diaphragm mobility permits floating to compensate for gear spacing errors from machining or heat-treatment distortion.
• Simple and rapid gear changeover reduces setup time.

Technical Features

• Diaphragm-style chucking system with no sliding or wearable parts.
• Spring-steel diaphragm provides uniform chucking pressure for internal and external gripping.
• Pull-back action against fixed stops for accurate, repeatable positioning.
• Floating diaphragm capability to accommodate gear spacing variation and distortion.
• Engineered for consistent concentricity and high precision in production turning and grinding.

Applications

• Gear families including:
  • Sun
  • Ring
  • Pinion
  • Output
  • Spur
  • Helical
• Hard turning and grinding operations
• Automotive constant-velocity (CV) joint components and related gear parts

Product Brochure
Universal Gear product brochure is available from the manufacturer with detailed ranges and specifications.

Technical Specifications

• Product type: Universal Gear Diaphragm Chuck (UG).
• Intended use: Longer production runs with infrequent tooling changes; adaptable to many gear configurations.
• Chucking mechanism: Spring-steel diaphragm, no sliding parts.
• Location/control: Pull-back action against fixed stops for positive and repeatable location.
• Compensation: Diaphragm float to compensate for gear spacing errors due to machining or heat treatment.
• Maintenance: Minimal — no wearable moving parts, reduced downtime.
• Changeover: Simple, rapid changeover between gear types (minutes) with minimal top tooling.
• Performance: Consistent concentricity and high precision suitable for hard turning, grinding, and gear machining.