NBK Japan MJB-55-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: 78
• Coupling Outer Diameter:55
• Material: Stainless
• This is a jaw type flexible coupling.
• Tight Fit enables transmission with zero backlash at low torque.
• Tight 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
• Quantity: One

A	L	W	B	C	F	M	Number of bolts	M'	Wrench Torque(N-m)
55	30	78	14	2		M5	4	M5	8.5