NBK Japan MFBS-12 3mm to 5mm Bellows-type Flexible Coupling Stainless Steel, Zero-Backlash Bellows Flexible Shaft Coupling for Servo and Stepper Motors

Regular price $120.00 Sale price$250.00you save $130.00
SKU: MFBS-12-3mm-5mm
Coupling Bore 1 Diameter:3mm
Coupling Bore 2 Diameter:5mm
Coupling Length: 23.5
Coupling Outer Diameter:12
5-7 days shipping
NBK MFBS-12 3mm to 5mm Bellows-Type Stainless Steel Flexible Coupling - Zero-Backlash for Servo & Stepper Motors (1 pc)
✔️ 3 mm & 5 mm bores, 23.5 mm long, 12 mm OD; stainless steel bellows, zero-backlash, high torsional rigidity, high torque, CV, Made in Japan, 1 pc

NBK MFBS-12 is a bellows-type stainless steel flexible coupling designed to connect servo or stepper motors with 3 mm and 5 mm shafts. It tolerates eccentricity, angular misalignment, and end-play for smooth, precise motion in CNC machines, robotics, and automation setups.

✅ Bore 1: 3 mm; Bore 2: 5 mm
✅ Length: 23.5 mm; Outer diameter: 12 mm
✅ Material: Stainless steel; Type: Bellows-type flexible coupling
✅ Zero-backlash; High torsional rigidity; High torque
✅ For servo and stepper motors; simple, compact design
✅ Made in Japan; Pack size: 1
💡 What is a bellows-type flexible coupling used for in precise motion control systems? This coupling tolerates misalignment and end play between connected shafts, delivering smooth torque transfer in servo and stepper setups. - Absorbs angular misalignment and eccentricity for smoother motion - Zero-backlash ensures repeatable positioning in CNC, robotics, and automation - Stainless steel bellows offers durability under high torque - Compact, handy design for tight spaces This setup delivers reliable, precise drive performance in both hobbyist and professional projects.
NBK Japan MFBS-12 3mm to 5mm
stainless steel Bellows-type Flexible Coupling

NBK Japan MFBS-12 3mm to 5mm Bellows-type Flexible Coupling stainless, this is a bellows type flexible coupling. The bellows allows eccentricity, angularmisalignment, and end-play.

  • Coupling Bore 1 Diameter: 3mm
  • Coupling Bore 2 Diameter: 5mm
  • Coupling Length: 23.5
  • Coupling Outer Diameter:12
  • Material: Stainless Steel
  • Zero Backlash
  • High torsional rigidity
  • High Torque
  • Constant Velocity
  • Simple Design
  • Made in Japan
  • Quantity: One


A L W E F M Wrench Torque(N-m)
12mm 7.5mm 23.5mm 7mm 2.5mm M2.7 0.5