Question

The size of the grinding wheel is represented by-
1. Wheel's diameter x thickness x hole size
2. Hole size x wheel's circumference x thickness
3. Thickness x Hole size x wheel's radius
4. Hole size x thickness

Answer 1

Correct Answer - Option 1 : Wheel's diameter x thickness x hole size

Concept:

• A grinding wheel consists of the abrasive that does the cutting, and the bond that holds the abrasive particles together.
• A standard marking system is used to specify and identify grinding wheels.
• The following is the sequence of arrangement:
• Abrasive type – Grain size – Grade of bond – Structure – Bond type

32	A	49	H	8	V	BE
Position 0	Position 1	Position 2	Position 3	Position 4	Position 5	Position 6
Manufacturer’s Symbol for abrasive (Optional)	Type of abrasive grit size	Grain size	Grade	Structure (Optional)	Type of bond	Manufacturer’s own mark (Optional)

 

The size of the grinding wheel is normally specified by the 

• Diameter of wheel
• Diameter of spindle hole
• Face width (thickness) of the wheel