KANDE D25L35 Rigid Shaft Coupler 25mm for Stepper & 3D Printer

KANDE D25L35 Rigid Shaft Coupler — Precision Clamp for Stepper, Servo & 3D Printer Motors

Keep your motors perfectly aligned with the KANDE D25L35 Rigid Shaft Coupler. Engineered from solid steel, this nonstandard disc-style clamp coupling delivers rock-solid torque transmission between motor shafts — ideal for CNC machines, 3D printers (including CR10 builds), stepping motors, and servo motor assemblies. Whether you're retrofitting an existing setup or building from scratch, this coupler locks shaft-to-shaft without slip or flex.

Key Specifications

• Brand: KANDE BEARINGS
• Model: D25L35
• Outside Diameter (OD): 25 mm
• Length (L): 35 mm
• Material: Steel
• Structure: Disc / Clamp Style
• Type: Rigid (zero-flex, high-precision transmission)
• Compatible Bore Sizes: 5 mm, 6 mm, 6.35 mm, 8 mm, 10 mm, 12 mm
• Quantity: 1 piece per order
• Made in Mainland China

Why Choose the KANDE D25L35 Rigid Coupler?

• High Torque Transmission: Rigid steel construction ensures zero angular play, maximising positional accuracy in stepper and servo motor applications.
• Versatile Bore Compatibility: Available in multiple bore size options (5–12 mm) to suit a wide range of motor shaft diameters.
• Clamp-Style Locking: Set-screw clamp design provides a secure, repeatable grip without damaging the shaft surface.
• 3D Printer Ready: Perfectly sized for popular desktop 3D printer platforms including CR10 and similar machines.
• Durable Steel Build: Resists wear, vibration, and mechanical stress in continuous-duty environments.

What's Included

• 1 × D25L35 Rigid Shaft Coupler (OD 25 mm × L 35 mm)

Compatible Applications

• 3D Printers (CR10, Ender series, and similar platforms)
• CNC routers and engravers
• Stepper motor assemblies
• Servo motor drive systems
• Robotics and automation projects

Looking for other precision hardware and building components? Browse our 10pcs 2-Pin Spring Wire Connectors – Quick Splice Lock Terminals and 12pcs 16mm Momentary Push Button Switch – 1NO Metal 2-Pin Self-Reset for more electrical and mechanical essentials.

Learn more: OSHA guidance on hand and power tools

Frequently Asked Questions

Q: What bore sizes are available for the KANDE D25L35 rigid shaft coupler?

A: The D25L35 coupler is available in 5 mm, 6 mm, 6.35 mm, 8 mm, 10 mm, and 12 mm bore sizes. Please select your required bore size to match your motor shaft diameter before ordering.

Q: Is this coupler suitable for use in a 3D printer such as the CR10?

A: Yes. The D25L35 is specifically referenced as compatible with CR10-style 3D printers. Its 25 mm outer diameter and 35 mm length make it an excellent fit for Z-axis lead screw coupling and similar applications in desktop 3D printing platforms.

Q: What is the difference between a rigid and a flexible shaft coupler?

A: A rigid coupler like the D25L35 provides zero angular or radial flex, making it ideal for applications requiring precise positional accuracy — such as stepper motor-driven lead screws in 3D printers or CNC machines. Flexible couplers absorb minor shaft misalignment but allow some play, which can reduce positioning accuracy.

Q: How is the coupler secured to the motor shaft?

A: The D25L35 uses a clamp-style (set-screw) locking mechanism. This allows a firm, secure grip on the shaft without permanently deforming it, making installation and removal straightforward with standard hex keys.

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.