Lower Unit; Double Taper Roller Bearing; Propeller Shaft Bearing (Regular Rotation Model) - Yamaha F225F Service Manual

Lower unit

Double taper roller bearing

A double taper roller bearing a is used to receive the thrust load of the pinion and stabilize the axial
free play of the drive shaft b. The drive shaft b is secured in the lower case using a ring nut c. As
a result, the axial free play is removed and the pinion position is secured.

Propeller shaft bearing (regular rotation model)

The propeller shaft is supported using 3 bearings to decrease the radial motion of the propeller
shaft. Because 2 bearings are taper roller bearings, axial free play also decreases.
b
Intake and exhaust system / Lower unit
c
a
Lower unit
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A
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