KANDE GR19 D40L66 Flexible Jaw Spider Steel Shaft Coupler CNC

KANDE GR19 XL1 D40L66 Flexible Jaw Spider Steel Shaft Coupler for CNC & Ballscrew Motors

Upgrade your CNC machine, motor drive, or ballscrew assembly with the KANDE GR19 XL1 D40L66 Flexible Jaw Spider Steel Shaft Coupler. Engineered from high-quality steel, this jaw/spider-type flexible coupling delivers reliable torque transmission while compensating for minor shaft misalignment — keeping your motion control systems running smoothly and efficiently.

Available in a wide range of bore sizes — 8, 10, 12, 14, 16, 18, 20, and 24mm — this coupler is a versatile fit for stepper motors, servo motors, lead screws, and ballscrew setups commonly found in CNC routers, laser engravers, 3D printers, and industrial automation equipment.

Made in Mainland China.

Key Features

• Model: GR19 XL1 D40L66 — Outer Diameter 40mm, Length 66mm
• Material: Durable steel construction for long-lasting performance
• Type: Flexible Jaw / Spider (Plum-style) Coupling
• Bore Sizes: 8 / 10 / 12 / 14 / 16 / 18 / 20 / 24mm
• Flexibility: Absorbs vibration and compensates for angular, parallel, and axial misalignment
• Standard: Meets standard coupling specifications for easy integration
• Brand: KANDE BEARINGS — a trusted name in motion control components
• No high-concern chemicals — safe for workshop and industrial environments

What Is a Jaw Spider Coupler?

A jaw (spider/plum) coupling consists of two steel hubs and a flexible elastomer spider insert. This design allows the coupler to transmit torque efficiently while dampening vibration and accommodating shaft misalignment. It's the go-to choice for CNC builders and machine engineers who need precision motion with built-in tolerance for real-world shaft alignment imperfections.

Ideal Applications

• CNC routers & milling machines
• Ballscrew & lead screw drives
• Stepper motor & servo motor connections
• 3D printers & laser engravers
• Industrial automation & robotics
• Pumps, conveyors, and general power transmission

Package Contents

• 1 x KANDE GR19 XL1 D40L66 Flexible Jaw Spider Steel Shaft Coupler (bore size as selected)

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Frequently Asked Questions

Q: What bore sizes does the KANDE GR19 D40L66 jaw coupler come in?

A: This flexible jaw spider shaft coupler is available in bore sizes of 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, and 24mm. Simply select the bore diameter that matches your motor shaft or ballscrew shaft when ordering.

Q: Is this coupler compatible with CNC stepper and servo motors?

A: Yes. The KANDE GR19 XL1 D40L66 flexible jaw coupler is specifically designed for use in CNC builds, including stepper motor and servo motor shaft connections, ballscrew drives, and lead screw assemblies. Its flexible jaw/spider design accommodates minor misalignment without sacrificing torque transmission.

Q: What are the outer diameter and length of this coupler?

A: The model designation D40L66 tells you everything — the outer diameter is 40mm and the total length is 66mm. These are standard dimensions for medium-duty CNC and automation coupling applications.

Q: What material is this shaft coupler made from?

A: The KANDE GR19 XL1 D40L66 coupler hubs are made from steel, offering excellent strength and durability for demanding motion control and power transmission environments.

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.