Flexible element comprising:
1 Natural rubber in the form of a cross.
2 A floating aluminium or steel star, whose arms are bonded to the rubber.
Mountings:
Two aluminium bosses, bonded to the rubber which will be attached to one of the machines.
Two bosses bonded to the rubber which will be attached to the other machine.
The TETRAFLEX coupling is designed with the following features:
– Binary symmetry which allows considerable conical misalignment.
– The rubber is precompressed from manufacture which limits operation under tension.
Advantages:
The floating star allows:
– Increased torque capacity without reducing the axial flexibility, hence reduced size for a given torque.
– Rotation at higher speeds as the star ensures that the arms are anchored centrifugally.
– A good torque/speed ratio.
Flexible element:
1 Metallic bobbins linked together by rayon fibres.
2 The whole unit 1 is potted in natural rubber and is hexagonal.
Flange:
3 Forged steel specially bored to accommodate the separate hub.
4 Universal separate hub (not supplied by PAULSTRA).
Flexible element made up of a variable number of FLEXIBLE STUDS
1 depending on the torque to be transmitted:
2 Solid natural rubber blocks in the form of a truncated cone.
3 Internal armature bonded to the rubber.
4 Threaded stud.
5 External armature bonded to the rubber.
6 Studding welded to armature.
7 Cylindrical metal cover.
Steel disks:
8 Two identical disks, bolted to the flanges 10 and with slits 9 to house the studs 1.
Flanges: 10 die-cast steel.
Flexible element:
1 Precompressed natural rubber.
2 Bonded metal spacers.
3 Precompression band (to be removed after installation).
Flange:
4 Die-cast steel specially bored to fit the separate hub.
5 Universal separate hub (not supplied by PAULSTRA).
Flexible element comprising:
1 Natural rubber in the form of a cross.
2 A floating aluminium star, whose arms are bonded to the rubber.
Mountings:
3 Two aluminium bosses, bonded to the rubber, which will be attached to one of the machines.
4 Two aluminium bosses, bonded to the rubber, which will be attached to the other machine.
5 Band for precompressing the rubber before assembly.
Two retaining bars are supplied although not shown in the photo.
