date
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16.12.2013

Product Portrait

Flywheels for trucks and buses

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The DT Spare Parts brand offers a complete range with more than 30 000 different spare parts for trucks, trailers and buses, including all standard flywheels.

The DT brand products, made of high quality materials, meet your highest quality requirements and guarantee a long period of use.

The flywheel is located on the output side of the crankshaft. It establishes the connection between engine and clutch. The flywheel ensures smoother running of the engine.

By the rotation of the crankshaft, the flywheel can store kinetic energy. Due to its mass inertia, it can continue to rotate, even when, at certain times, the engine does not supply any operating power.

The flywheel takes up the clutch. Together they build the flywheel mass.  

On the outer diameter of the flywheel is a ring gear, into which the starter pinion engages when the engine starts up.
DT-Technic Info

The teeth of the ring gear are specially heat-treated (hardening/tempering). This ensures a long service life.

In many cases the teeth of the gear are equipped with an inlet bevel to ensure better engagement of the starter pinion. On the outer diameter of the flywheel  are markings to fix the precise ignition point.

The receiving diameter of the clutch housing is produced with a very tight tolerance, in order to ensure the centring of the coupling.




The friction surface of the clutch disk is produced with a highly accurate run-out tolerance.

In addition to flywheels, the comprehensive DT range includes all matching ring gears, ball races, bearings, starter pinions and flywheel housings.

Construction of flywheels

  1. Flywheel body
  2. Location/adaption/mounting bore ball bearing/ ball race
  3. Adaption/clamping face coupling
  4. Ring gear

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