WABCO OptiTire System Description page 26

Components
APPLICATION
Towing vehicle: Front axle,
load axle
Twin tires, Super-Single
Counterweight for L-shape
sensor
Counterweight independent
wheels
Counterweight independent
wheels (North America)
Counterweight
External sensor with
counterweight
26
HOLE,
WABCO PART WHEEL
NUMBER BOLT
960 731 075 0 26 mm
960 731 081 0 26 mm
960 905 822 4 26 mm
960 905 823 4 32 mm
960 905 820 4 26 mm
960 905 821 4 32 mm
960 905 824 4 26 mm
To prevent the external sensor causing an imbalance on the wheel, a
counterweight is mounted on the opposite side.
Axles with twin tires do not need a counterweight. In this case, the external
sensor of one wheel serves as counterweight for the external sensor of the
other wheel. The external sensors are opposite each other.
External sensor for twin wheels
(Top view onto the outer twin)
BOLT HOLE Ø ANGLE
285.75 mm 33°
225 mm 70°
335 mm 0°
335 mm 0°
285.75 mm 0°
External sensor 960 731 051 0 with
counterweight 960 905 822 4
FIGURE