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Fig. 3:
Crosskill rings. Note the direction of rotation of the shaft.
Start with a small ring, which must face the direction shown in fig. 4.
Then fit a bush, and a large ring above this, facing the direction shown in fig.
4. Finish with a small ring. Ensure that the rings fit tightly together. Fig.
4:
Welled rings. Start with two rings, screwed together as shown in fig. 5. Fill the
shaft until a gap of about 22 cm is lefl. Close off the shaft with two rings bolted
together. Ensure that the rings are packed tightly together.
Fig. 5:
roller middle
roller middle
roller middle
7
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