NBK Japan MJC-14-BL 4.5mm to 6mm Jaw-type Flexible Coupling mbx 5 bearings 💡 What is a ceramic

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NBK Japan MJC-14-BL 4.5mm to 6mm Jaw-type Flexible Coupling mbx 5 bearings 💡 What is a ceramicNBK Japan MJC 14 BL 4. 5 6 mm Jaw Type Flexible Coupling, Single Unit, Stainless Steel, Made in Japan Bore 4. 5 6 mm; Length 22 mm; Outer diameter 14 mm; Material stainless steel; jaw type design with zero backlash at low torque; easy fit; electrical insulation Bore: 4. 5 mm to 6 mm Length: 22 mm Outer diameter: 14 mm Material: stainless steel Jaw type design with zero backlash at low torque Made in Japan; electrical insulation and easy fit What is a