Alternator and Starter Armatures

The alternator and starter armatures category includes key moving components of alternators and starters. In buses, due to extremely high electrical loads and frequent starting cycles, armatures are components particularly susceptible to thermal and mechanical wear.

Alternator and starter armatures for buses – The heart of the alternator and starter

The armature is the working component that determines the efficiency of energy conversion in a bus’s electrical units. In an alternator, the armature (rotor) generates the magnetic field required to produce 24V current, while in a starter it transmits the high torque needed to overcome the resistance of a large-displacement diesel engine. At Peterbus.pl, we offer high-quality alternator and starter armatures for Solaris, MAN, Mercedes-Benz, Volvo and Scania.

Armatures in bus systems – what do we offer?

We supply components for the remanufacturing and repair of key units:

• Alternator armatures (rotors): Fitted with precisely manufactured windings and slip rings. We offer high-performance models, including Bosch and Prestolite, designed to withstand prolonged electrical loads when powering air conditioning and lighting.

• Starter armatures: Characterised by a reinforced mechanical construction and resistance to high starting currents. They feature high-quality commutators that ensure smooth operation with the brushes.

• Commutator and bearing components: The armatures are ready for installation and dynamically balanced, eliminating vibrations and extending the service life of the bearings inside the unit.

Why is armature quality so important?

In urban transport, buses make hundreds of stops and starts every day. A poor-quality armature may burn out due to insulation breakdown or suffer mechanical damage caused by commutator wear, resulting in the sudden immobilisation of the vehicle. By choosing parts from Peterbus.pl, you gain:

1. Resistance to high temperatures: Our armatures feature Class H insulation, which retains its properties even when exposed to extreme heat in the engine compartment.

2. Precise balancing: Each armature is factory-balanced, preventing axial runout and premature wear of the brushes and bearings.

3. Selection according to the unit specification: Armatures differ in the number of windings, shaft dimensions and ring type. Our experts will select the right component based on the alternator or starter number, for example Bosch, Mitsubishi and Delco Remy.

4. Remanufacturing option: We offer new armatures as well as serviceable, electrically tested used original armatures, enabling effective and economical repair of the unit.

Maintain the electrical performance and reliable starting of your fleet. Explore the Peterbus.pl range of alternator armatures and starter armatures and choose components with proven durability.