Page 234 - CITS - Fitter Trade Practical - Volume -2

FITTER - CITS

• place a ring or two parallel blocks of equal size to support the inner ring of the bearing. (Fig 2)
• put a dummy between the ram and the shaft

• Gently press the shaft to come out of the bearing. (Fig 2)

• Support the extracted shaft by hand to prevent damage.

• Never apply direct hammer blows on the bearing. (Fig 3)

Method II using bearing puller
• Fit the bearing pullers spindle on the centre hole of the shaft. (Fig 4).

• Place the legs of the bearing.
• Slowly tighten the spindle of the puller by a spanner so that the puller is ready to take the strain (Fig 4)

• For dismounting the bearing special type of puller with bracket attachment shown in (Fig 5) is used so that
pulling force is applied on the inner ring of the bearing.

• Use a keeper puller plate along with the puller when pullers legs tend to engage with the outer ring of the bear-
ing. (Fig 6)

• Rotate the outer ring or the puller during dismounting if the pullers legs has to engage the outer ring of the
bearing, when the bearing is to be used again. (Fig 7)

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CITS : C G & M - Fitter - Exercise 94