The Ford Model T planetary transmission has three bands, one for low gear, one for reverse and one for the brake. These bands need to be changed from time to time, but if you can wear them all out together you will get the longest time between band changes.
The brake band has the hardest life while the reverse band gets relatively little use. The wear can be equalized by using reverse pedal for some of the braking. Use reverse first to slow the car, then slide the foot across onto the brake pedal to come to a halt.
These bands and gearing run in the engine crankcase oil. If they are allowed to slip too much the oil is burned off and the lining of the band will be worn very quickly. To avoid this always hold the low gear pedal down firmly and do your braking in relatively short bursts releasing the pressure to allow the oil back round the lining.
The transmission is an Epicyclic or Planetary gear transmission. Using 3 triple gears rotating around a driven gear, like the planets orbiting the sun.
Because the different gear teeth are always in mesh, it is not possible to “crash” or “grind” the gears as can be done in a more traditional style gearbox.