Breaking Effort of Locomotive

Loco brakes should be:-

• Softer than wheel tyres.
• When worn out, should be easily replaceable.
• Should be able to absorb heat ( otherwise thermal cracks )
• Should preserve wheel profile.
• Should do cleaning action in order to have good adhesion coefficient.

HENCE COMPOSITE BRAKE BLOCKS USED  IN PLACE OF METAL BRAKE BLOKES.

Electric Loco Bogies

Co-Co Trimount Bogies:-

• found in WAG 5 and WAM4.
• Cente Pivot shares 60 % load.

Co-Co High Adhesion Bogie:

• found in WAG7.
• Same copied in WDG2.
• CP doesnt carry any load, placed down under.
• TM noses ae in one side.
• Dampers on primary suspenion.
• 4 side bearers.
• 2- piece equalising beam.

Flexi-coil bogies:

• called high speed boges.
• found in WAP 1 and WAP4.
• there is bolster.
• No side bearers.
• Friction damper for vertical and lateral damping.
• use manganese liners.