NANO

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.