Supplement to operation instructions SIPOS SEVEN
Part-turn gearboxes 2SP78.
Page 6 Y070.477/EN
2 Part-turn gearbox assembly
Mounting with base and lever
2
Part-turn gearbox assembly
2.2.3 Mount swing lever with cone clamping element to gearbox
Function of cone clamping element
Cone clamping elements are internal clamping connections for backlash-free fastening of hubs on
shafts. Torques are transmitted from the shaft via the cone clamping element to the hub.
The cone clamping element consists of a slotted
outer ring (g., item 1) with inside cone and a
slotted inner ring (item 2) with outside cone as
well as several clamping screws (item 3).
Fastening the clamping screws will t the outer
ring to the outer ring. The tightening torque of
the clamping screws, the cone angle as well as
the friction coefcients of the screws and conical
surfaces determine the intensity of radial clamp-
ing forces generated by the conical surface. The
radial clamping forces press the outer ring into
the hub bore and the inner ring onto the shaft,
resulting in friction-based connection at the
respective contact surfaces.
Thus, torque can be transmitted between shaft
and hub.
Fig.: Cross section of cone clamping
element
1. Carefully clean contact surfaces at both
shaft and swing lever.
2. Apply thin layer of oil to cone clamping
element.
Neither use oil with molybdenum disul-
de or extreme pressure additives nor
grease!
3. Fit cone clamping element (g. 1, item 1)
into the swing lever (item 2) (a) and slide
onto the shaft (item 3) (b).
4. Align swing lever (g. 2, item 1) and heed
distance between cone clamping element
(item 2) and shaft (item 3).
5. Tighten clamping screws as follows, refer to
g. 3, sequence shown in A, B and C:
–First use torque spanner to tighten all
clamping screws crosswise at half the
tightening torque (see table), refer to A
in illustration 3 (sequence 1 – 6).
–Tighten all clamping screws clockwise
one after the other at half the tighten-
ing torque (see table), refer to B in g. 3,
(sequence 1 – 6).
–After that, tightening all clamping screw
clockwise one after the other and
several times at full tightening torque,
refer to C in g. 3.
Fig. 1: Place cone clamping element and
swing lever
Fig. 2: Align swing lever and cone clamping
element
Mount swing lever with cone clamping element
