(1) Knuckle and king pin
The knuckle is supported with a king pin which in turn is secured at the knuckle side with a lock
pin. The top and bottom of the king pin are tted to the axle boss with needle bearings.
Between the axle boss and the knuckle is a thrust bearing to let the knuckle smoothly rotate
around the king pin, sustaining load.
The top and bottom needle bearings and thrust bearing are lubricated by grease supplied through
the grease ttings at top and bottom of the king pin.
(2) Wheel hub
The wheel hub is mounted on the knuckle spindle with two tapered roller bearings and its
preload is adjusted with a nut.
Fig. 6A.4 Steering Axle (for 2.0- to 3.5-ton Trucks) 2/2
Detail of
D
PIN
PIN
SPHERICAL
BUSHING
BUSHING
OIL SEAL
NEEDLE BEARING
THRUST BEARING
“O”-RING
NEEDLE BEARING
OIL SEAL
KING PIN
OIL SEAL
TAPERED ROLLER
BEARING
TAPERED ROLLER
BEARING
ADJUSTMENT NUT
COTTER PIN
CAP
Fill 50% of the space
with grease
LOCK PIN
Detail of
C
6A. STEERING SYSTEM (ORBITROL type)
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