Sunbeam ALPINE I SERIES: APLINE II SERIES, Workshop Manual, Page: 401 / 413

WSM.124
Section Q (Oil Seals & Bearings)
I
st
re-issue
Page 3
TAPER-ROLLER BEARINGS
The bearing assembly consists of two parts, the
outer race or cup, and the roller assembly, I.e.
roller secured In a cage on the cone or inner race.
Usually the cone and roller assembly cannot be
separated.
The cups fit in the housing.
The cones fit on the shaft.
1. Cups
(a) The cups should be an interference fit in
their housings. If not, the housings should
be replaced.
In no case must knurling, or the application
of solder, or the use of liners other than
pressed in steel, be resorted to.
(b) The cups must not be "cocked" when being
pressed In, I.e. they must be in line with
the bore in the housing throughout the
operation of installation.
(c) The cups must be pressed right home
against the abu.tment shoulder, preferably
under a press. It should not be possible to
enter a ·002" (·051 mm.) thickness gauge
between the cup and abutment shoulder.
In fitting, use a tool which contacts all
round the outer edge. On no account must
pressure be applied to the roller track.
(d) Grease the seating for the cup, which
should be assembled clean and smeared
with lubricant after installation.
2. Roller Assemblies
Before placing in position, all old grease must be
scrupulously cleaned out and the cages packed
between the rollers with new lubricant of the
correct grade.
The whole of the roller surfaces should likewise
be covered with lubricant.
3. Cones on Stationary Shafts (Stub axles)
(a) The cones must be a "creep" fit on the
shaft, the ideal being ·0002"/·0013•
(·005/·033 mm.) loose This permits of
easy removal and proper control of
adjustme·nt, and allows the cone to alter
its axial position slightly when the load is
eased momentarily. The seatings for inner
race must always be smeared with grease
before the bearings are fitted.
(b) Hub bearings should be adjusted in
the manner described In Section F of
this manual.
When the correct adjustment has been
obtained, lock the nut with a new split pin
of correct diameter.
4. Cones on Revolving Shafts (e.g. Pinion
Shafts).
The cones should be a press fit, but In some cases
where bearing adjustment is made by moving one
of the cones, it Is not practicable to be more than
a light push fit. If cones are loose enough to turn
on the rotating shaft, overheating and rapid wear
of seating will occur.