Machine Drawing

(avery) #1

328 Machine Drawing


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d:\N-Design\Des18-4.pm5


105

36

R32

R34

12

12

25

2 30

6

210

25

63

2

22

25

1

22

16

f 64
f 68

2 HOLES,

DIA 19

4064

105

(^3) R58


20

R32

OIL HOLE, DIA 3^364

CSK DIA 6

DEEP 20

f 64
f 68

2 HOLES,

DIA 19

OIL HOLE, DIA 6

R32 f 50
3

(^2) R30 R38
SNUG, DIA 6
10


64

12 12

f 64
f 60

10 f^76

5

28

12

f 16 130

Sl. No. Name Matl. Qty.
1
2
3
4
5

Base
Bearing brass
Bearing brass
Cap
Bolt with nuts

CI

Bronze
Bronze
CI
MS

1

1

1

1

2

Parts list

Fig. 18.45 Plummer block

Figure 18.45 shows the details of a plummer block/pedestal bearing. The bottom half 2 of


the bearing brass is placed in the base 1 such that, the snug of the bearing enters into the


corresponding recess in the base; preventing rotation of the brasses. After placing the journal


(shaft) on the bottom half of the bearing brass, kept in the base; the upper half of the bearing


brass 3 is placed and the cap 4 is then fixed to the base, by means of two bolts with nuts 5. The


bearing is made of two halves so that the support can be introduced at any location of the long


shaft. Figure 12.4 shows the assembly drawing.


Exercise


Assemble the parts of the plummer block, shown in Fig. 18.45 and draw the following views:


(i) Half sectional view from the front, with left half in section, and


(ii) View from above.

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