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Question:

Gear pressure angle problem (difference of pressure angle between 20 and 25 degrees)

Please introduce the difference: 1.20 degree pressure angle and pressure angle of 25 degrees with 2.20 degree pressure angle and 25 degree pressure angle of the advantages and disadvantages of either his own or experience can be copied, as long as it is comprehensive and detailed on the line!

Answer:

Research on knowledge, and the top value of 20 degree pressure angle is more reasonable, the.3 pressure angle is 25 degrees, means of gear tooth is hypertrophy, while the radial force due to a pressure angle greater than 20 degree pressure angle of the gear, but the 25 degree pressure angle of the gear tooth bending strength is strong, therefore, used in gear heavy machinery, and has a great impact in is more extensive. Hope to be able to help you
The pressure angle is less than 20 degree radial pressure angle of 25 degrees, this also means that the 20 degree pressure angle of the gear, for acting force more, for power loss less.2, based on the above reasons, the pressure angle seems to be as small as possible, but the pressure angle is small. The gear tooth, more thin, the bending strength is low, the overall balance
Panwei Hello! Answer to your question: in a pair of meshing gears, pressure angle of the gear method to produce radial force and pitch circle tangential force, radial force is not work, but is destructive, only the pitch circle of the tangential component is used to transmit torque and power. Therefore: 1, by geometric drawing, function calculation can be learned

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