
Beefy Flexible Coupling Shaft 14mm To 20mm Bore 53mm Length 44.5mm OD Motor Coupler Joint For Servo And Stepper Motors Encoder CNC And Machinery Projects With 5mm Or 6mm Slot Width
Beefy Flexible Coupling Shaft 14mm To 20mm Bore 53mm Length 44.5mm OD Motor Coupler Joint For Servo And Stepper Motors Encoder CNC And Machinery Projects With 5mm Or 6mm Slot Width
The Story
✔️ Bore 14-20mm, L 53mm, OD 44.5mm, Slot 5/6mm, M6x1.0
The beefy coupling shaft is built from 45# steel, designed to connect servo motors, stepper motors, encoders, and CNC drives. It’s ideal for hobby machines, automation rigs, and printer builds where smooth torque transfer matters.
✅ 45# steel construction delivers strength and durability✅ Bore 14-20 mm (0.55-0.79 in), length 53 mm (2.09 in), OD 44.5 mm (1.75 in)
✅ Slot widths 5 or 6 mm (0.2/0.24 in)
✅ M6x1.0 thread fits common motor shafts
✅ Flexible joint reduces stress and improves response
✅ Ships as 1 piece per pack
💡 What is a motor coupling used for in servo and CNC setups? It helps connect rotating shafts and absorb misalignment. This handy component is common in automation and robotics projects.
- Improves torque transfer between motor and driven components - Reduces vibration and wear by allowing minor misalignment - Compatible with 14-20 mm bores and M6x1.0 thread - Useful in encoder, CNC, servo, and stepper projects
Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.
Description
✔️ Bore 14-20mm, L 53mm, OD 44.5mm, Slot 5/6mm, M6x1.0
The beefy coupling shaft is built from 45# steel, designed to connect servo motors, stepper motors, encoders, and CNC drives. It’s ideal for hobby machines, automation rigs, and printer builds where smooth torque transfer matters.
✅ 45# steel construction delivers strength and durability✅ Bore 14-20 mm (0.55-0.79 in), length 53 mm (2.09 in), OD 44.5 mm (1.75 in)
✅ Slot widths 5 or 6 mm (0.2/0.24 in)
✅ M6x1.0 thread fits common motor shafts
✅ Flexible joint reduces stress and improves response
✅ Ships as 1 piece per pack
💡 What is a motor coupling used for in servo and CNC setups? It helps connect rotating shafts and absorb misalignment. This handy component is common in automation and robotics projects.
- Improves torque transfer between motor and driven components - Reduces vibration and wear by allowing minor misalignment - Compatible with 14-20 mm bores and M6x1.0 thread - Useful in encoder, CNC, servo, and stepper projects






















