19mm Outer Diameter x 25mm Length, 4mm x 5mm Inner Diameter RB Aluminium Flexible Shaft Coupling
Made from durable aluminium, this one-piece shaft coupling offers low inertia, zero backlash performance, and stable rotation for precision assemblies. It is commonly used in CNC setups, 3D printers, automation mechanisms, and motor-driven systems where dependable coupling and reduced vibration are required.
19mm Outer Diameter x 25mm Length, 4mm x 5mm Inner Diameter RB Aluminium Flexible Shaft Coupling
Available:In Stock
- Product SKU: LGSTM085
₹ 149
₹ 199
Need Volume Discounts? Deals are specially designed for you. Click here
Need Customization? Provide us more details Click here
🏠
Warehouse Details:
Specification
Description
19mm Outer Diameter x 25mm Length, 4mm x 5mm Inner Diameter RB Aluminium Flexible Shaft Coupling
The RB Aluminium Flexible Shaft Coupling is designed for secure connection between 4mm and 5mm shafts in compact motion systems. With its 19mm outer diameter and 25mm length, this coupling is suitable for applications where accurate shaft alignment and smooth torque transfer are important. The helical slit structure helps absorb minor misalignment while reducing stress on connected components during operation.Made from durable aluminium, this one-piece shaft coupling offers low inertia, zero backlash performance, and stable rotation for precision assemblies. It is commonly used in CNC setups, 3D printers, automation mechanisms, and motor-driven systems where dependable coupling and reduced vibration are required.
Drawing

Applications
- CNC machines and engraving assemblies
- 3D printer motor and lead screw connections
- Robotics and automation projects
- Encoder and stepper motor shaft coupling
- Precision drive and transmission systems
- DIY motion control applications
Features
- Helical cut body helps handle slight shaft misalignment
- Zero backlash design supports precision rotation
- Aluminium construction provides strength and corrosion resistance
- Compact shape suitable for limited installation space
- Low moment of inertia supports smooth running performance
- One-piece design improves durability and stability
Technical Details
- Product Type: Flexible Shaft Coupling
- Series Type: RB
- Material: Aluminium
- Outer Diameter: 19mm
- Total Length: 25mm
- Inner Diameter Side 1: 4mm
- Inner Diameter Side 2: 5mm
- Bore Combination: 4mm x 5mm
- Locking Screws: 2 x M3
- Structure: One Piece
- Torsional Property: Zero Backlash
Physical Attributes
- Weight: 16g
- Dimensions: 19mm x 25mm
- Bore Diameter (Both Sides): 4mm x 5mm
Package Includes
- 1 × RB Aluminium Flexible Shaft Coupling 4mm x 5mm