圈上海充通大峰 Fundamental Law of Gearing Involute curve 口 "String” There are 2 common profiles that give tangent to constant angular velocity ratios base circle >Cycloidal and normal >Involute to involute The involute profile can maintain the same velocity ratio even if there is some misalignment in the distance between the shafts. >We can equate the angular velocity ratio to the gear ratio! Base circle or evolute 圈上泽夫道大学 Involute Profile(渐开线齿廓) One tooth profile that satisfies the law of gearing is the involute profile and is used universally for gear teeth. It is the path traced by a point on a line as the line rolls without slipping on the circumference of a circle The circular cross section of the cylinder is the base circle(基圆). 1212  There are 2 common profiles that give constant angular velocity ratios  Cycloidal  Involute  The involute profile can maintain the same velocity ratio even if there is some misalignment in the distance between the shafts.  We can equate the angular velocity ratio to the gear ratio! Fundamental Law of Gearing Involute Profile（渐开线齿廓）  One tooth profile that satisfies the law of gearing is the involute profile and is used universally for gear teeth.  It is the path traced by a point on a line as the line rolls without slipping on the circumference of a circle  The circular cross section of the cylinder is the base circle（基圆）