Page 190 - Root Cause Failure Analysis
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178 Root Cause Failure Analysis
Figure 149 Basic cone shape of bevel gears (Neale 1993).
Two major differences between bevel gears and spur gears are their shape and the
relation of the shafts on which they are mounted. A bevel gear is conical in shape,
while a spur gear is essentially cylindrical. The diagram in Figure 14-9 illustrates the
bevel gear’s basic shape. Bevel gears transmit motion between angular or intersecting
shafts, while spur gears transmit motion between parallel shafts.
Figure 14-10 shows a typical pair of bevel gears. As with other gears, the term pinion
and gear refers to the members with the smaller and larger numbers of teeth in the
Figure 1410 Typical set of bevel gears (Neale 1993).
