19mm Outer Diameter x 25mm Length, 4mm x 8mm Inner Diameter RB Aluminium Flexible Shaft Coupling
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19mm Outer Diameter x 25mm Length, 4mm x 8mm Inner Diameter RB Aluminium Flexible Shaft Coupling

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  • Product SKU: LGSTM089
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Highlights
  • Original, High Quality
  • KitsGuru Warranty
  • 4mm x 8mm bore
  • 19mm outer diameter
  • 25mm total length
  • Spiral beam design
  • Aluminium one-piece body
  • Smooth rotary transfer
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Specification

Description

19mm Outer Diameter x 25mm Length, 4mm x 8mm Inner Diameter RB Aluminium Flexible Shaft Coupling

The RB Aluminium Flexible Shaft Coupling is a compact and durable shaft connector made to join 4mm and 8mm shafts in motion control and transmission assemblies. With a 19mm outer diameter and 25mm overall length, it is suitable for systems where accurate shaft connection and smooth operation are important. Its helical beam cut design helps compensate for slight shaft misalignment while reducing stress on connected parts during use.

Made from strong aluminium, this one-piece flexible coupling offers zero backlash performance, low rotational inertia, and reliable operation in compact mechanical systems. It is widely used in CNC machines, 3D printers, robotics, and motor-driven assemblies where steady torque transfer and reduced vibration are required.

Drawing

Drawing

Applications

  • Motor and shaft connection assemblies
  • 3D printer drive mechanisms
  • CNC and engraving systems
  • Robotics and automation equipment
  • Precision motion control setups
  • DIY mechanical projects

Technical Details

  • Product Type: Flexible Shaft Coupling
  • Series: RB
  • Material: Aluminium
  • Outer Diameter: 19mm
  • Total Length: 25mm
  • Bore Diameter Side 1: 4mm
  • Bore Diameter Side 2: 8mm
  • Bore Combination: 4mm x 8mm
  • Screw Type: 2 x M3
  • Construction: One Piece
  • Torsional Performance: Zero Backlash

Physical Attributes

  • Weight: 16g
  • Dimensions: 19mm x 25mm
  • Bore Diameter (Both Sides): 4mm x 8mm

Package Includes

  • 1 × RB Aluminium Flexible Shaft Coupling 4mm x 8mm

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