A Text Book on Engineering Graphics - Central Board of Secondary ...
A Text Book on Engineering Graphics - Central Board of Secondary ...
A Text Book on Engineering Graphics - Central Board of Secondary ...
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OPEN BEARING<br />
This bearing c<strong>on</strong>sists <strong>of</strong> a 'U' shaped cast ir<strong>on</strong> body with the similar shaped collared brass, br<strong>on</strong>ze<br />
or gun metal bush. The sole is recessed for better stability <strong>on</strong> the surface. This bearing is used for<br />
linear and zigzag shafts. The holes for the bolts in the sole plate are el<strong>on</strong>gated towards the width.<br />
This bearing is useful for shafts rotating at slow speeds. Now, let us understand the different parts<br />
shown in the (fig : 3.9)<br />
Questi<strong>on</strong>:<br />
R 5<br />
BODY<br />
R 8<br />
24<br />
80<br />
8<br />
R6<br />
54<br />
30<br />
6<br />
6<br />
OPEN BEARING<br />
Fig 3.9<br />
BUSH<br />
68 15<br />
4<br />
BEARINGS<br />
HOLES FOR BOLT<br />
(2 OFF) 24x15<br />
The figure given below (fig:3.10) shows the details <strong>of</strong> an 'Open bearing'. Assemble<br />
these parts correctly and then draw its following views to scale1 :1 :<br />
a. Fr<strong>on</strong>t view, right half in secti<strong>on</strong>.<br />
b. Top view.<br />
c. Side view as viewed from left.<br />
Write heading and scale used. Draw projecti<strong>on</strong> symbol. Give '6' important dimensi<strong>on</strong>s.<br />
94 ENGINEERING GRAPHICS<br />
8<br />
9<br />
144<br />
15<br />
200<br />
50<br />
42<br />
15<br />
28<br />
A
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