Kande XL3 D64L90 Flexible Jaw Shaft Coupler CNC 12–38mm

Kande XL3 D64L90 Clamp-Type Flexible Jaw Shaft Coupling for CNC & Ballscrew Applications

Upgrade your CNC machine, ballscrew drive, or motor assembly with the Kande XL3 D64L90 Flexible Jaw Spider Coupling. Engineered from high-quality steel, this clamp-type shaft coupler delivers precise torque transmission while accommodating minor shaft misalignment — keeping your machinery running smoothly and efficiently.

With a compact 64mm outer diameter × 90mm length (D64L90) profile and a wide bore range spanning 12, 14, 20, 24, 26, 28, 30, and 38mm, this coupling is a versatile fit for stepper motors, servo motors, and lead/ballscrew setups commonly found in CNC routers, lathes, milling machines, and automation equipment.

Made in Mainland China.

Key Features

• Clamp-Type Design — Secure, backlash-minimizing clamping action for reliable power transmission
• Jaw / Spider (Plum) Structure — Flexible polyurethane spider insert absorbs vibration and compensates for angular, parallel, and axial misalignment
• Steel Construction — Durable, high-strength steel hubs for demanding industrial and hobbyist CNC environments
• Wide Bore Compatibility — Available bore sizes: 12 / 14 / 20 / 24 / 26 / 28 / 30 / 38mm to suit a broad range of motor and screw shaft diameters
• Model D64L90 — 64mm outer diameter, 90mm overall length; a robust, full-size coupling for high-torque applications
• Standard Configuration — Drop-in replacement or upgrade for common CNC and automation drive trains

Specifications

Ideal Applications

• CNC routers, milling machines, and lathes
• Ballscrew and leadscrew drive systems
• Stepper motor and servo motor connections
• Industrial automation and motion control equipment
• 3D printers and precision linear motion setups

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Frequently Asked Questions

Q: What bore sizes does the Kande XL3 D64L90 flexible jaw coupling support?

A: The D64L90 clamp-type coupling is available in bore sizes of 12mm, 14mm, 20mm, 24mm, 26mm, 28mm, 30mm, and 38mm, making it compatible with a wide variety of CNC motor and ballscrew shaft diameters.

Q: What is the difference between a jaw/spider (plum) coupling and a rigid coupling?

A: A jaw or spider coupling features a flexible polyurethane or rubber spider insert between the two steel hubs. This insert absorbs vibration, reduces shock transmission, and compensates for minor angular, parallel, and axial shaft misalignment — advantages that rigid couplings cannot offer. This makes the Kande XL3 ideal for precision CNC and motion control applications.

Q: Is this coupling suitable for both stepper motors and servo motors?

A: Yes. The clamp-type design and flexible jaw structure make the D64L90 suitable for connecting stepper motors, servo motors, and ballscrew/leadscrew assemblies in CNC machines and industrial automation systems, provided the shaft diameters match one of the available bore sizes.

Q: How does the clamp-type design work?

A: The clamp-type hubs feature a slit and tightening screw that securely clamps around the shaft, eliminating slippage and minimizing backlash. This provides a more reliable and precise connection compared to traditional set-screw designs, especially under variable or reversing loads common in CNC applications.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.