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(11).Balancing the Grinding Wheel
Efficient balancing is essential in eliminating unnecessary stress in the wheel. It can also
help obtain high quality surface finishes, grinding accuracy, and extend the life of the
grinding wheel. In this case, the grinding wheel has to be balanced carefully. Static
balancing can better meet the requirements of machining.
The grinding wheel together with the wheel flange is fitted to balance the arbor and this
assembly is then placed on two accurate parallel knife edges of the wheel balancing base,
and balancing can be effected as follows: (see Fig.2).
•
The wheel balancing base must be leveled (Fig.1)
•
Allow the wheel to oscillate to find the center of gravity, which is then marked "S"
with chalk (Fig.3)
•
Apply the first balancing weight "G" opposite to this point "S" and screw it in. It
cannot be moved again (Fig.4)
•
Place two correction weight "K" anywhere around the periphery, but at equal
distance "a" from weight "G" (Fig 5)
•
Turn the wheel 90° at a time and see if it is balanced. If it is not, the correction
weight "K" must be moved until the wheel is balanced in any position (Fig. 6)
•
After balancing, the wheel must be given a test run of at least five minutes at full
working speed before being used or fine balanced.
Level
Wheel
Flange
Base
Balancing
Arbor
S
Fig.1
Fig.2
Fig.3
G
K
G
K
Fig.4
S
S
Fig.5
Fig.6
Property
of
Kent
Industrial
USA
Please
Do
Not
Reproduce
