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Alignment of shafts:

Axial and angle displacement are usually without problemsand also simple to measure. To obtain the lateral displacement it is recommended to proceed as follows: Fit a dial gauge with a appropriate holding device on one shaft end or on the one hub of the coupling and bring it with the stylus onto the second shaft end or onto the second coupling half (sketch). Now the shafts are turned with the dial gauge and the deflection is read off. One half of the total deflection is the lateral misalignment. The admissible value for the shaft displacements must be taken from the technical data sheets of the appropriate series.
90 2010 80 3040 1234567890 70 5060

Shaft - hub connection

The couplings are supplied with finished bores as a rule,in exceptional cases they are also supplied prebored. The seat shaft/hub is to be selected as a transitional seat (example: hub bore diameter 28 G6 - shaft diameter 28 k6).Prior to mounting the finished bore shaft and conicalsleeve should be lightly oiled to prevent fretting corrosion. The coupling is then ready for assembly between the two shafts. An existing keyway in the shaft will not affect the frictional connection. (see EASY-clamp-sytem page 8)

a) Radial clamping hub

Admissible seat clearance shaft hub: min.0,01mmmax.0,04mm Very simple fitting by tightening only one radially arranged clamping screw (DIN 912).The value for the relevant tightening torques can befound in the data sheets. One hole in the housing is sufficient, as a rule, to tightening the clamping screw. (see EASY-clamp-sytem page 8)

b) Splithub

Admissible seat clearance shaft-hub: min.0,01mmmax.0,04mm
Two radial clamping screws (DIN 912) are arranged mirrored. The hubs or couplings are split and consist of 2 loose halves.One of the splitting hubs can be put onto the alignedshaft. Tighten clamping screws evenly, alternating between both sides (note specified tightening torques). Alarger opening must be provided in the housing for easy installations.

c) Conical hub/conical ring hub

Admissible seat clearance shaft-hub: max.0,02mm Assembly of the conical bush or of the conical clampingring with several, concentrically arranged mounting screws (as a rule 6x DIN 933). One side of the coupling is fitted onto the shaft end by evenly tightening the screws, crosswise (to preventuneven draw-on).The drive or output is now turned by a few revolutions, so that the shaft pinion turns in the second hub and the hub can move on the shaft for axial release. Now the 6 screws of the second hub are also evenly tightened.

Disassembly

After releasing the 12 (6) retaining screws, the hubs are released with 3 push-off threads each.With axially tight space conditions, it is advisable to screw in andsecure the push-off-screws before fitting. For disas-sembly an opening in the housing should be provided. Elastomer couplings: Due to the plugability a blind fitting is also possible. Oil the elastomer spiders lightly before fitting.

Special notes

Metal bellows coupling: As the metal bellows consist of thin stainless steelsheeting, special care during fitting and disassembly is neccesarry. Damages to the bellows can render the coupling useless. You will find further type specific technical details and characteristics in the data sheets.
Servocouplings www.jakobantriebstechnik.de Tel. 06022 2208-0 Fax 06022 220822

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