Rigid Shaft Coupler D40L45 Stepper Servo Motor 3D Printer CNC

$57.93 $65.49

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Inner Diameter

Kande D40L45 Rigid Shaft Clamp Coupler – Precision Motor Coupling for 3D Printers & CNC Machines

Upgrade your 3D printer, CNC router, or servo motor setup with the Kande D40L45 Rigid Shaft Clamp Coupler. Engineered from high-grade aluminium alloy with a disc-type structure, this coupler delivers rock-solid shaft-to-shaft connection for stepper and servo motors. Whether you're building or maintaining a 3D printer or precision motion control system, this coupling provides the rigidity and dimensional accuracy your project demands.

Made in Mainland China.

Key Features

Universal Bore Sizes: Compatible with shaft diameters of 8, 10, 12, 14, 15, 16, 18, 20, and 22mm — fits a wide range of stepper and servo motors
Rigid Construction: Disc-type rigid coupling ensures minimal flex and maximum torque transmission between motor and lead screw or shaft
Aluminium Alloy Body: Lightweight yet durable aluminium alloy construction resists corrosion and withstands continuous operation
Precise Dimensions: Outer diameter (OD) 40mm × Length 45mm (D40L45) for accurate, repeatable alignment
Easy Installation: Clamp-style design for quick, tool-assisted shaft mounting and secure hold
3D Printer Ready: Ideal for use with popular 3D printer drive systems, CNC axes, and motor coupling applications

Specifications

Brand	KANDE BEARINGS
Model	D40L45
Outer Diameter (OD)	40mm
Length (L)	45mm
Material	Aluminium Alloy
Structure	Disc / Clamp Type
Type	Rigid
Compatible Shaft Sizes	8 / 10 / 12 / 14 / 15 / 16 / 18 / 20 / 22mm
Quantity	1 piece per order
Country of Origin	Mainland China

What's in the Box?

1 × D40L45 Rigid Shaft Clamp Coupler (Aluminium Alloy)

Perfect For

3D printer lead screw and motor coupling
CNC machine motor shaft connections
Stepper and servo motor drive systems
Robotics and automation projects
DIY motion control builds

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Frequently Asked Questions

Q: What shaft sizes is the D40L45 rigid coupler compatible with?

A: The Kande D40L45 rigid shaft coupler supports bore (shaft) diameters of 8mm, 10mm, 12mm, 14mm, 15mm, 16mm, 18mm, 20mm, and 22mm, making it versatile for a wide range of stepper motors, servo motors, and 3D printer drive systems.

Q: Is this coupler suitable for 3D printer lead screw connections?

A: Yes! This rigid disc-type clamp coupler is an excellent choice for connecting stepper motors to lead screws in 3D printers, CNC machines, and other precision motion systems. Its aluminium alloy body ensures a secure, play-free connection for accurate positioning.

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

A: A rigid coupler, like this D40L45, transmits torque with no flex between the two shafts, making it ideal for applications requiring precise alignment and maximum torque transfer. Flexible couplers absorb minor misalignment but may allow slight movement. Choose rigid when shaft alignment is well-controlled, such as in most 3D printer and CNC setups.

Q: How many couplers are included in one order?

A: Each order includes 1 (one) piece of the D40L45 rigid shaft clamp coupler.

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.

We prioritize quality in selecting the materials for our items, choosing premium fabrics and finishings that ensure durability, comfort, and timeless appeal.

We strive to process and ship all orders in a timely manner, working diligently to ensure that your items are on their way to you as soon as possible.