20
After being balanced for the first time, the wheel must be mounted on the grinding
spindle of the machine and dressed. This can be done with the parallel dresser on the spindle carrier or
with one fitted on the table. When dressing the wheel from the table, the table must be locked
longitudinally and then cross-traversed with the hand-wheel. The wheel must be dressed until it runs
dead true. The grinding finish is improved, if any part of the wheel is out-of -truth in the side walls,
the wheel is also removed.
After this first balancing, the wheel must be removed from the spindle again and then carefully re-
dressed. After being fitted to the spindle again and re-dressed, it is ready for use.
As wear can lead to unbalance, the wheel should be re-checked and if necessary,
rebalanced.
Grinding wheel absorbs humidity and coolant, it is therefore advisable not to short the coolant supply
when the wheel is stationary, otherwise the wheel will absorb liquid on one
side only and will then be out of balance. If the wheel is allowed to stand for any length
of time, coolant will collect at the lowest point. Idling is essential to throw-off coolant by
centrifugal force.
Prior to placing the flange-mounted grinding wheel to the spindle, the flange bore and spindle taper
must be absolutely clean, and the wheel is pushed by hand onto the spindle.
Subsequently, tighten the wheel flange securely with a fixed bolt or nut.(Fig.7 or Fig.9)
Use an extractor to release the wheel flange from spindle taper. (Fig.8 or Fig.10)
General type spindle:
Fixed nut
Extractor
Fig.7
Fig.8
American type spindle:
Fixed nut
Extractor
Fig.9
Fig.10
Property
of
Kent
Industrial
USA
Please
Do
Not
Reproduce
