PROGRESSIVE TYPE GEAR BOX:
Usually this gear boxes are used inwards motor cycles. In this gear boxes the gears exceed away through the intervening speeds field shifting from 1 speed to another. There is a neutral pose betwixt 2 positions. These gear boxes are a combination of sliding in addition to constant mesh gear boxes. The diverse gear speeds are obtained past times sliding the domestic dog clutch or gear to the required position.
EPICYCLIC (OR) PLANETARY TYPE GEAR BOX:
The epicylic or planetary type transmission uses no sliding dogs or gears to engage but dissimilar gear speeds are obtained past times only tightening brake-bands on the gear drums, which simplify gear changing. Influenza A virus subtype H5N1 planetary gear laid upwards consists of telephone gear or annular wheel, Sun gear in addition to planet gears alongside carrier. In social club to obtain dissimilar speeds whatever 1 of these iii units tin last held from rotation past times agency of brake bands.w
SELECTIVE TYPE GEAR BOX
It is the transmission inwards which whatever speed may last selected from the neutral position. In this type of transmission neutral pose has to last obtained earlier selecting whatever forrad or contrary gear. Some selective type gear boxes are,
(i) Sliding mesh gear box
(ii) Constant mesh gear box
(iii) Synchromesh gear box
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