Universal Hub Coupling ID 4mm OD 32mm Extra Heavy Duty Aluminium Alloy

Specifications : Material: High-Grade Aluminum-Alloy ( same high-strength alloy as used in meccanum wheels) Bore size ID: 4mm hole for the shaft of the Motor Flange OD: 32mm Total thickness: 13.9mm Suitable for A Set of 32mm Aluminium Bush Type Mecanum Wheels- (4 Pcs Set)