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DAILY 4x4 ‒ GUIDELINES FOR BODYBUILDERS
POWER TAKE-OFFS
4.1 GENERAL INFORMATION
– Printed 692.68.999 – 3 Ed. - Base 08-2020
4.1.2 PTO transmissions
In full compliance with the specifications provided by the Manufacturer of the driveline, the constant-velocity forces from the
power take-off at the relevant apparatus should be carefully considered (angles, rpm, moment) during the design phase as well as
the dynamic behaviour in the installation phase.
This means that:
● the dimensions should take into consideration the forces which might occur under maximum power and torque conditions;
● to ensure effective kinetic forces, the shaft ends must be at the same angle (see Figure 1), and this angle must not exceed 7°;
● solution Z is preferred to solution W due to the lower loads on the bearings of the power take-off and the equipment being
driven. When it is necessary to obtain a different driveline with spatial inclinations according to angle φ (as shown in Figure
2), it is important to remember that the constant-velocity forces of the assembly can only be guaranteed if the intermediate
section has forks offset by the same angle φ and if equal conditions are observed between the angles at the extremities Χ
1
and
Χ
2
.
For transmissions employing multiple sections, please refer to the indications provided in Chapter 2.8 .
192350
Figure 1
Solution Z Solution W
91523
Figure 2
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