Ball differential

The ball differential is a special form of differentials and is almost exclusively used in the model, because it wears quickly at high attainment.

Design and function

The actual differential effect is generated in that the two plates are pressed against each other, between which there are beads, which can roll under the bias. The force is happening while central to the ball cage ( eg by belt, chain or gear ). Now, if one increases the compressive force of the plates to one another, the locking action of the differential is greater as the friction of the balls is increased to the plates. When the pressing force is reduced, the blocking effect is small, but at the same time may be less motor torque can be transmitted.

Maintenance

When the balls have a large ground with the time slot in the plate, one should replace this, as the friction and thus also the locking effect is increased by the formation of grooves. When the plates are so loose that the differential forms a screeching noise when driving, should they be ( a little) turn tighter.