igus robolink - Drive Pulleys with Integrated Wire Tightening

robolink
®
Joint kit – Documentation (#4; 2016-12)
igus
®
GmbH | Martin Raak | Tel. +49 (0)2203 9649 409 | mraak@igus.de 19
Drive pulleys with integrated wire tightening
The igus

drive unit is equipped with new pulleys RL-ZA011-0250-xx (since July 2011).
They enable the user to tighten the wires for the robolink arm easily.
The tension of the wires can be adjusted individually:
 If the tension is to low: the joint will have play (will bounce).
 If the tension is to high: friction in the system will rise, all components will be
wearing faster
1. RL-ZA011-0250-xx (nominal diameter 50mm)
2. unscrew the 3 screws for ~ 2 turns
3. tighten the rope with the 3-pin-tool that
is delivered with the drive unit
4. tighten the 3 screws again after that
All drive pulleys can be adapted to different motor shafts (res. gear shafts) by using
different adapter pieces. The following standard dimensions can be chosen from stock:
• RL-ZA011-0250-05 for shaft diameter 5 mm
• RL-ZA011-0250-06 for shaft diameter 6 mm
• RL-ZA011-0250-08 for shaft diameter 8 mm
• RL-ZA011-0250-08PFN for shaft diameter 8 mm (with feather key groove DIN 6885)
• RL-ZA011-0250-10 for shaft diameter 10 mm
• RL-ZA011-0250-10PFN for shaft diameter 10 mm (with feather key groove DIN 6885)
• RL-ZA011-0250-12 for shaft diameter 12 mm
• RL-ZA011-0250-12PFN for shaft diameter 12 mm (with feather key groove DIN 6885)