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410
DRIVETRAIN
COMPONENT DESCRIPTION
NOTE :
Component description is in-line with serial numbers
given in above fig.
1. Seals or Boots :
Driveshaft assemblies use inboard and outboard joint
boots. The inboard and outboard boots are made of
thermoplastic material. The thermoplastic material
performs well against normal handling and operational
wear conditions. However, it is not strong enough to
withstand abusive handling or damage due to objects
such as sharp tools or the sharp edges of any other
surrounding component in the vehicle.
The functions of the boot are :
(a) To lubricate the internal parts of the inboard and
outboard joints.
(b) To facilitate angular and axial movement as
applicable for inboard and outboard joints.
(c) To protect the internal parts from grease from
stones, dirt, water or any foreign materials.
2. Clamps :
These aremade of stainless steel. The clamps provide
a leak proof connection at housing and axle shaft for
the inboard and outboard joints. Clamps once used
should not be reused again.
3. In Board Joint (IBJ) and Out Board Joint (OBJ):
These are Constant Velocity universal joints radically
self supported and permitting axial and angular
movement consisting of a housing directly connected
to the axle shaft through three equally spaced
transmission mounted rollers. These are made of
special steels through complex forming process
followed by heat treatment. The main function of these
joint is to allow the half shaft assembly to compensate
for suspension movement in the vehicle by allowing
the shaft to move axially or stroke in the inboard and
outboard housing.
The only difference between two joints is, outboard
joint has threads to accommodate drive shaft lock
nut and inboard joint has splines and locking circlip.
4. Interconnecting Shaft or Bar shaft :
The axle shaft simply connects the inboard joint and
the outboard joint. It is made out of special steel heat
treated to give optimum strength and fatigue
performance. The function of the axle shaft is to
transmit torque and rotation to the wheel from the
transmission.