NBK Japan MJC-14-BL 4mm to 1/4" Jaw-type Flexible Coupling

Regular price $120.00 Sale price$250.00you save $130.00
SKU: MJC-14-BL-4mm-1-4inch
Coupling Bore 1 Diameter:4mm
Coupling Bore 2 Diameter:1/4 inch
Coupling Length: 22
Coupling Outer Diameter:14
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NBK Japan MJC-14-BL 4 mm to 1/4 in Jaw-Type Flexible Coupling - Stainless Steel, Made in Japan, Single Pack, 22 mm Length
✔️ Jaw-type flexible coupling, bore 4 mm (0.157 in) to 1/4 in (6.35 mm), length 22 mm (0.87 in), OD 14 mm (0.55 in), stainless steel, low-backlash, accommodates eccentricity and end-play, single pack

NBK Japan MJC-14-BL is a compact, jaw-type flexible coupling designed to connect motor and driven shafts in precision equipment such as CNCs, servo drives, and automation systems. It absorbs misalignment and end-play while maintaining a clean torque path, with electrical insulation and durable stainless steel construction for dependable performance. Made in Japan, this style emphasizes easy assembly and reliable, low-backlash operation.

✅ Bore 1: 4 mm (0.157 in)
✅ Bore 2: 1/4 in (6.35 mm)
✅ Length: 22 mm (0.87 in)
✅ Outer diameter: 14 mm (0.55 in)
✅ Material: Stainless steel
✅ Features: zero-backlash at low torque; tolerates eccentricity, angular misalignment, and end-play
✅ Fitment: single pack; made in Japan
✅ Spider color: varies by stock
💡 What is a jaw-type flexible coupling used for in precision machinery? This Q&A explains typical uses and benefits: - Low-backlash torque transmission for precise positioning - Absorbs misalignment and end-play to protect drives - Stainless steel construction provides durability and electrical insulation - Handy for compact servo or stepper drives in automation This handy coupling helps maintain timing accuracy and extend drive life in compact automation setups.
NBK Japan MJC-14-BL 4mm to 1/4" inch
Jaw-type Flexible Coupling

NBK Japan MJC-14-BL 4mm to 1/4" inch Jaw-type Flexible Coupling, this is a Jaw type flexible coupling. The bellows allows eccentricity, angularmisalignment, and end-play.

  • Coupling Bore 1 Diameter: 4mm
  • Coupling Bore 2 Diameter: 1/4" inch
  • Coupling Length: 22
  • Coupling Outer Diameter:14
  • Material: Stainless
  • This is a jaw type flexible coupling.
  • Tight Fit enables transmission with zero backlash at low torque.
  • Easy fit allows you to assemble and partition the hub and sleeve smoothly.
  • Excellent flexibility allows eccentricityangular misalignment and twisting vibration to be accepted.
  • It has electrical insulation
  • Made in Japan
  • Coupling Insert Spider Color: Varies according to ex-stock
  • Quantity: One


A L W B C F M Wrench Torque(N-m)
14 7 22 6 1 3.5 M3 0.7