Bearings 179
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d:\N-Design\Des12-1.pm5
Instead of a snug, the brasses may be provided with square or octogonal seatings to
prevent relative movement. The polygonal shaped seatings provided adjacent to the flages, fit
into the corresponding recesses in the base and the cap. The seatings used are narrow in width
to reduce the amount of machining (Fig. 12.5).
10
12
32
10
f 6
33
f 40
ff 33
ff^3030
ff 2525
10
12
32
12
10
f 6
33
f 50
ff 33
ff^3030
ff 2525
f^76 f^68 ff^6060
f
76
f
(^68) f
50
R30
12
OIL HOLE, DIA 3
8
8
62
SNUG, DIA 6
LONG 10
12
ff 5050
SNUG, DIA 6
LONG 10
OIL HOLE, DIA 3
Fig. 12.5 Brasses
12.2.1.4 Bracket and Hanger Bearings
Brackets and hangers with bearings mounted, are used to support transmission or line shafts.
However, in some cases, a part of the bearing housing may be cast integral with the bracket or
hanger.
Bracket bearings
Bracket bearing supports a shaft running parallel to and near a wall or near a row of pillars.
The vertical plate of the bracket is bolted to the wall or pillar; the number of bolts used depends
upon the size and shape of the bracket.
Wall brackets
In the case of a wall bracket, the size of the bracket depends upon the biggest size of the pulley
that is to be mounted on the shaft. Fig. 12.6 shows a wall bracket with a pedastal bearing mounted
on it. It may be noted from the figure, that the pedastal is integrally cast with the bracket.
