Shaft-mounted gear unit with TorqLOC® (customer shaft without contact shoulder)

Mount the drive unit on the shaft as follows:

  1. Perform the steps according to the chapter Installation notes.
  2. Clean the customer shaft and the inside of the hollow shaft. Make sure that all grease and oil residues are removed.
  3. Mount the stop ring and the bushing on the customer shaft.
  4. WARNING! Danger due to lack of fastening of the torque arm. Risk of death or severe injuries. Attach the torque arm to the drive unit. Observe chapter Torque arm. Installation of the drive unit without a torque arm is not permitted.
  5. Apply NOCO-Paste onto the bushing and spread it carefully.
  6. Slide the gear unit onto the customer shaft.
  7. Mount the torque arm onto the system structure/holding fixture (do not tighten the screws).
  8. Slide the bushing into the gear unit as far as its stop.
  9. Slide the stop ring onto the bushing. Mark the position of the stop ring.
  10. Remove the torque arm from the holding fixture/system structure.
  11. Remove the gear unit from the customer shaft until the stop ring is accessible for installation.
  12. Make sure that the position of the stop ring has not changed (note the marking).
  13. Tighten the stop ring with the following torque:
    • Standard design: 18 Nm
    • Stainless steel: 7.5 Nm
  14. Slide the bushing and the gear unit onto the customer shaft up to the fixed stop ring.
  15. Mount the torque arm onto the system structure/holding fixture again (do not tighten the screws).
  16. Make sure that all screws are loosened and slide the shrink disk onto the hollow shaft.
  17. Slide the counter bushing onto the customer shaft and into the hollow shaft.
  18. In the case of a gear unit with shaft shoulder, mount the shrink disk at the shaft shoulder up to the stop. In the case of a gear unit without shaft shoulder, mount the shrink disk at a distance of 6.5 mm to 7.5 mm from the gear unit housing.
  19. Lightly hammer on the flange of the counter bushing to ensure that the bushing is firmly seated in the hollow shaft.
  20. Make sure that the customer shaft is seated in the counter bushing.
  21. Tighten the screws of the shrink disk only hand-tight and make sure that the outer rings of the shrink disk are plane-parallel.
  22. Tighten the locking screws by working round several times from one screw to the next (not in diametrically opposite sequence):
    • The exact values for the tightening torques are located on the shrink disk.
  23. After installation, make sure the remaining gap s between the outer rings of the shrink disks is > 0 mm.
    • The remaining gap between the counter bushing and hollow shaft end, as well as the bushing and stop ring must be > 0 mm.
  24. Tighten the torque arm sufficiently. Observe chapter Torque arm.