Internal locking units type IS are examples of shaft-hub connections. They achieve a frictional and backlash-free connection between a shaft and a hub hole. Due to the locking unit which grips from the inside no additional installation space is taken up by external components outside the hub and slim design is thus permitted. Each type offers the following benefits as a result: It has self-locking taper angles, is self-centring and thus achieves an increase in concentricity through pre-centring.
The shrink disc is outside the power flow when the system is in operation. Only very low dynamic loads and no wear occur on the shrink disc. The shrink disc is therefore fatigue-proof when correctly designed.
The screw connection is made from one side as standard. Quick assembly and easy accessibility are therefore ensured.
Easy (dis)assembly due to access to the screws and forcing threads from one side.
Space-saving assembly under the hub.
|Series||Features||Torques min.||Torques max.||Shaft diameter min.||Shaft diameter max.|
|Series IS 1||Small installation space Sliding of the hub when tensioning||0,3 kNm||880 kNm||20 mm||500 mm|
|Series ISN 1||Axial fixing No sliding of the hub when tensioning||0,3 kNm||723 kNm||20 mm||500 mm|
|Series I 2||For high torques, no sliding of the hub when tensioning||7,3 kNm||1258,5 kNm||70 mm||600 mm|
|Series IS 3||For extremely high torques, no sliding of the hub when tensioning||3,1 KNm||1458,6 kNm||45 mm||600 mm|
|Series IS 4||For high torques, no sliding of the hub when tensioning||0,9 kNm||1.266 kNm||30 mm||600 mm|
|Series IS 4.1||Reduced surface pressure Especially suited for conveyor pulleys No sliding of the hub when tensioning||11 kNm||903 kNm||100 mm||600 mm|