NBK Japan MJC-40K-RD 1/2" to 20mm Jaw-type Flexible Coupling shielding the NJ220EG outer diameter is

the NJ220EG outer diameter is 180mm

while the metal shields help retain lubrication and block out debris

NBK Japan MJC-65CS-WH 7/8 inch to 1 inch

2 1/2" x 2 1/2" x 2

NBK Japan MJC-40K-RD 1/2" to 20mm Jaw-type Flexible Coupling shielding the NJ220EG outer diameter isNBK Japan MJC 40K RD 1 2 inch to 20mm Jaw type Flexible Coupling NBK Japan MJC 40K RD 1 2 inch to 20mm Jaw type Flexible Coupling NBK Japan MJC 40K RD 1 2 inch to 20mm Jaw type Flexible Coupling, this is a Jaw type flexible coupling. The bellows allows eccentricity, angularmisalignment, and end play. Coupling Bore 1 Diameter: 1 2 inch Coupling Bore 2 Diameter: 20mm Coupling Length: 66 Coupling Outer Diameter: 40 Material: Stainless This is a jaw type