The coupling connects the drive pin of the axis to the motor pin. An elastic polymer insert, in the centre of the coupling transfers the motor torque. This dampening element compensates for radial and axial clearance.
Type code (not configurable, serves only for explanation)) Part number: COU-AR-K-050-000-25-26-B-AAAB
1st place (COU): Product type 2nd place (AR): igus internal 3rd place (K): Product definition 4th place (050): Hole diameter 1/d1/Motor 5th place (000): Hole diameter 2/d2/axis 6th place (25): Coupling outer diameter 7th place (26): Coupling length 8th place (B): Coupling inner ring 9th place (AAAB): Hole type (AAAA = round, AAAB = square)