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Home / Product Range / Couplings / Jaw Couplings / AL-30 Clamp-Type Aluminum Alloy High-Speed Jaw Coupling, for Servo Motors and Precision Positioning
  • AL-30 Clamp-Type Aluminum Alloy High-Speed Jaw Coupling, for Servo Motors and Precision Positioning
  • AL-30 Clamp-Type Aluminum Alloy High-Speed Jaw Coupling, for Servo Motors and Precision Positioning
Jaw Couplings

AL-30 Clamp-Type Aluminum Alloy High-Speed Jaw Coupling, for Servo Motors and Precision Positioning

The AL-30 clamp-type jaw coupling is built for modern servo motors and precision automation equipment. With its all-aluminum lightweight design and backlash-free clamp mounting, it is an ideal connector for CNC machine tools, precision lasers, and industrial robots to achieve high-frequency response and accurate transmission.

Item Specification
Model AL-30
Type Clamp-type jaw flexible coupling
Body material 6061-T6 aerospace aluminum alloy
Surface treatment Anodizing (silver/black optional)
Elastomer material High-strength polyurethane (92A standard / 98A high-rigidity optional)
Rated torque Approx. 12 N路m (depending on elastomer hardness)
Maximum speed 20,000 rpm
Inertia Very low moment of inertia (suited to servo systems)
Machining CNC one-piece turning, dynamic balancing
Suitable conditions High speed, high-precision positioning, backlash-free forward/reverse transmission
Packaging Individual anti-static bag + export carton

Key Product Advantages Key Selling Points Applications and Scenarios Contact Us

1. Aerospace aluminum alloy, very low moment of inertia: The body is CNC-machined in one piece from 6061-T6 aluminum alloy and weighs only one third of an equivalent steel coupling. The very low inertia greatly reduces the starting load on the servo motor and markedly improves the equipment's dynamic response speed and machining cycle time.
2. Clamp-type zero backlash, extremely precise high-speed positioning: It abandons the traditional straight bore with keyway in favor of an axially slotted clamping design. Tightening the screw produces a radial shrinking force that clamps the shaft, completely eliminating keyway clearance and achieving true zero backlash, which ensures positioning accuracy under high-frequency forward/reverse rotation.
3. Dynamic balancing for up to 20,000 rpm: For high-speed operation, every coupling undergoes rigorous dynamic balance testing before leaving the factory. Even at 20,000 rpm, vibration remains very low, effectively protecting the servo motor bearings and reducing spindle noise.
4. High-rigidity PU spider, heat-resistant and fatigue-resistant: The 98A high-hardness polyurethane spider shows almost no deformation when transmitting high torque. It also has excellent high-temperature and oil resistance, and does not age or crumble in continuous high-speed operation, with a life far exceeding ordinary rubber.

The "perfect partner" for servo systems: Lightweight + zero backlash + high balance, built to handle all kinds of demanding high-speed response requirements.
Anodized, both good-looking and corrosion-resistant: The anodized surface enhances the industrial aesthetic while strengthening oxidation and corrosion resistance.
Maintenance-free, efficient transmission: Needs no lubrication, and the elastomer perfectly absorbs the high-frequency oscillation of servo motors.

CNC and precision machine tools: CNC machining center spindles, and connections between servo motors and ball screws.
Electronics and semiconductors: Precision laser engravers, SMT pick-and-place machines, and semiconductor wafer inspection equipment.
Robotics and automation: Industrial robot joint drives and high-precision vision inspection platforms.
Packaging and medical: High-speed flow-wrap packaging machines and transmission mechanisms of precision medical devices.

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About Rentai
Transmission Equipment

Shanghai Rentai Transmission Equipment Co., Ltd. is a manufacturer specializing in R&D, production and export of mechanical transmission components. Our main products include taper lock pulleys, taper lock bushes, timing pulleys, V-belts and timing belts. We also provide OEM & ODM custom service for non-standard transmission parts. Our factory covers over 8000 square meters, with more than 100 employees including 22 technical staff. We integrate casting, machining and finishing, equipped with CNC machines and testing instruments, with an annual casting output of 2000 tons. Supported by complete quality management system and international standards, our products are exported to Southeast Asia, Middle East, Europe and America, delivering reliable transmission solutions for global industrial clients.

  • 10+

    Industry Experience

  • 100+

    Production staff

  • 2000+Ton

    Annual Production

  • 8000+㎡

    Factory Area

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