The pack includes, as shown in the pictures, a crown made of an insert in ergal and a teeth plastic
ring  plus  two drives for the motor shaft, one in ergal and one in bronze.

These crowns can be used with all pinions available in the market. Their peculiarity is of being
realized in two parts so as to obtain the best gearing.

For maximum running smoothness, it is recommended to avoid a tight contact and  leave some
ease  between the teeth of the crown and those of the pinion..

In general practice the use of pinions 8T and 11T  in combination with all crowns  has always
shown gearing  problems.

These crowns are made of two parts. As the crown can  be located at a distance  from the pinion,
MB SLOT has realized a new range of pinions  8T, 9T, 10T and 11T. Thanks to their  design, 
the higher is the number of teeth in the pinion,  the larger will be  its diameter. In this way
the design of the tooth must not be modified and  an optimal gearing also with pinions
8t and 11T will be assured.

Of course these pinions (Art. 19225) are to be used exclusively with MB SLOT inline crowns.

and if you like exaggerations