How to interpret the logo of the grinding wheel

For the marking of grinding wheels, there is a unified norm in the world. China's national standard is formulated with reference to this norm. Its main elements include: shape, size, abrasive, particle size, hardness, texture, bonding agent, wire speed, and so on. For example, the following picture:

The shape of the grinding wheel: the most common is the flat shape, and then the flat shape is processed into a single-sided oblique, double-sided oblique and other different shapes according to the needs of various applications. The shape code of the Chinese national standard is represented by the initial letter of Pinyin, such as "P" for flat shape, "PDX" for single-sided oblique, "PDA" for single-sided concave, and so on.

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Saint-Gobain Abrasives has its own shape recognition system, which is based on a combination of US and Japanese shape definitions. For example, the flat code is "1A", the one-sided concave code is "5A", the double-sided concave code is "7A", and the like.

The method of expressing the size of the grinding wheel generally refers to: outer diameter x thickness x inner diameter, such as 600x75x305mm

If it is a non-flat shape, it is necessary to specify the detail size, such as the depth and diameter of the recess, the angle of the tilt, and the like. When the shape is very special and different from the standard shape, detailed drawings are required to be manufactured.