NBK Japan MJC-40K-BL Jaw Type Flexible Coupling 10mm to 25mm Stainless Steel shaft coupling for servo motors and precision drives, zero backlash design with misalignment tolerance and vibration damping for smooth torque transmission

NBK MJC-40K-BL Jaw Type Flexible Coupling 10mm to 25mm Stainless Steel
✔️ NBK Japan MJC-40K-BL 10mm to 25mm Jaw Type Shaft Coupling

This jaw type flexible coupling is used to connect a 10mm shaft to a 25mm shaft in motor and drive systems while helping absorb vibration and small alignment errors. It is handy for servo motors, CNC machines, and precision equipment where smooth torque transfer and shaft protection matter.

✅ Pack size: 1 coupling
✅ Coupling type: jaw type flexible shaft coupling
✅ Bore size 1: 10mm
✅ Bore size 2: 25mm
✅ Overall length: 66mm
✅ Outside diameter: 40mm
✅ Material: stainless steel
✅ Zero backlash at low torque operation
✅ Accepts angular misalignment and shaft eccentricity
✅ Helps reduce twisting vibration in rotating systems
✅ Provides electrical insulation between connected shafts
✅ Insert spider color varies by stock
✅ Country of origin: Japan

Dimensions (mm)

A L W B C F M Wrench Torque
40 66 25 12 2 12.5 M5 4 Nm

💡 Why choose a jaw type flexible shaft coupling for mixed diameter precision drive systems?
Jaw couplings are selected to keep torque transfer stable while protecting motors and bearings from alignment stress.

• Allows different shaft sizes to work together in one drive line

• Compensates for angular and slight parallel misalignment

• Dampens vibration to extend motor and bearing life

• Maintains smooth rotation in precision motion equipment

A smart pick for joining uneven shaft sizes while keeping motion smooth and equipment running clean and steady.