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Grinding wheel Structure of grinding wheel Abrasive grain (artificial abrasice) Grain size Grade Structure Bond Bond subdivision symbols Grinding wheel specification and indication method Grinding wheel's shapes and size Process of grinding wheel Grinding operations and how to select grinding wheel Basic conditions for selection Prerequisite for selection standart by JIS. Standard selection of grinding wheel by JIS. Processing conditions Management of grinding operation problem Grinding wheel safety Treatment and storage Installation Points of caution when using Safety level Protective equipment CBN and Diamond wheels Bond characteristics Application examples by bond Concentration Indication Wheel shape symbols Truing and dressing Basic conditions on wheel selection

Grinding wheel specification and indication method

The grinding wheel comes in an extraordinary variety of models depending on application.
This method for international unification of grinding wheel varieties took effect in 1965 as the ISO and JIS(Japan), ANSI(USA) and DIN(Germany), which are based on this method.

We can express the unity of specification in this variety as an example.

1 A  305X25X127.00  H  60  K  8  V  8J  2000

1	Shape type
A	Rim type
305X25X127.00	Outside diameter x Thickness x Hole diameter (DxTxH)
H	Kind of abrasive
60	Grain size
K	Grade
8	Structure
V	Kind of bond
8J	Subdivision symbol of bond
2000	Max speed in M/Min.