Designs equipped with brush-rocker assembly, terminal box and axle roller suspension bearings.

Polyimide film covered conductors for armature coils.

Armatures built with high permeability electrical sheet steel.

Potted field coils for better heat dissipation.

Use of curved field coils on traction motors with round magnet frame for improved heat dissipation and space factor.

Higher temperature class, moisture resistant glass banding of armature.

TIG welded armature coil to commutator riser connection joints.

Arch-bound commutator construction.

PTFE ring protection on commutator front V-ring for effective Creepage

Robust brush-holders with Micalex insulated pins.

Arcing horns or rings for protection against flashovers.

• Sealed armature bearings necessitating re-greasing only during overhauls.

• Protection against over-filling of gear case.

• Felt-wick lubricator for lubrication of axle sleeve bearings.

• Gear wheels & pinions of case-carburised or induction hardened or through hardened type.