Robust Gear and Industries
768 Westgate Road Units 3&4 L6L 5N2 Oakville, ON, Canada

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Engineering Capacity Specifications of Herringbone Gears 1. Circular pitch(CP) - is a direct measurement of the distance between the center of one tooth to the center of the adjacent tooth. Maximum CP up to 72inches in diameter. 2. Diametrical pitch - is the ratio of the number of teeth to the pitch diameter (in inches) of a gear. Maximum of 2DP.... 3. Module(mod or M) - is used for metric gears and is the ratio of pitch diameter (in millimeters) to the number of teeth. Maximum of 12 Module. 4. Pressure angle - is the angle of tooth drive action, or, the angle between the line of force between meshing teeth and the tangent to the pitch circle at the point of mesh. Typical pressure angles are 14.5 or 20. 380 maximum BHN specifications.