3 - 1
Section F
9803/3280
Section F
3 - 1
Issue 1
Technical Data
Front Axle
Note:
It is essential that the correct ratio axle in relationship to the gearbox ratio is fitted to the machine. Do not fit a new axle
with a different ratio to the axle being replaced.
ALL WHEEL STEER MACHINES
Type
JCB spiral bevel input with epicyclic hub reduction
Designation
SD70
Installation
Centre pivot
Weight
(dry, with no steer rams and without wheels)
385 kg (850 lbs) approximately
Overall Gear Ratio
24.975:1
Crownwheel and Pinion Ratio
4.625:1
Number of Teeth
Crownwheel
37
Pinion
8
Hub Reduction
5.4:1
Input Type
Yoke
Oscillation
± 5°
Toe - in
0°
Castor Angle
0°
Camber Angle
1°
King - pin inclination
0°
2 WHEEL STEER MACHINES (4 Wheel Drive)
Type
JCB spiral bevel input with epicyclic hub reduction
Designation
SD55
Installation
Centre pivot
Weight
(dry, with no steer rams and without wheels)
330 kg (728 lbs) approximately
Hub Reduction
5.4:1
Input Type
Yoke
Oscillation
± 5°
Toe - in
0 °
Castor Angle
0 °
Camber Angle
1 °
King - pin inclination
0 °
Ratios
OPTION 1
OPTION 2
Overall
16.2:1
19.2:1
Crownwheel and Pinion
3:1
3.556:1
Number of Teeth
Crownwheel
33
32
Pinion
11
9
2 WHEEL STEER MACHINES (2 Wheel Drive)
Type
JCB centre oscillation, non-driven
Installation
Centre pivot
Weight
(dry, with steer ram and without wheels)
239 kg (525 lbs) approximately
Oscillation
± 5°
Toe - in
0°
Castor Angle
0°
Camber Angle
3 ° positive