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Precision Gear Accuracy:
 
1, is mainly controlled precision gear gears operate passed between the precision gear, such as: stability, volatility of the instantaneous velocity of the drive, if the post becomes reverse operation, the backlash has reached a minimum, if there is impact load, should be slightly greater accuracy, thereby reducing the impact load to bring the gear damage.
2, if these design requirements are relatively high, the gear accuracy is also necessary to set too little higher, and vice versa can be set a little undercoat
3, however, the precision gear set too high, it will increase processing costs, a comprehensive balance
4, the above parameters you basically are more commonly used gear, its accuracy can be defined as: 7FL, accuracy or 7-6-6GM marked explanation:
7FL: tolerance three groups of the same precision gears 7, the tooth thickness deviation for class F, lower tooth thickness deviation is L level
7-6-6GM: The first group tolerance precision gear is 7, and the second set of gears with precision tolerance is 6, and the third group with precision tolerances gear 6, the tooth thickness deviation for Class G lower deviation of tooth thickness of the M-class
5, the gear accuracy is no formula, because the need to calculate, is to check the manual too.
6, the determination accuracy class is the result of a comprehensive analysis of the engineer, the drive requires precision, high load or alternating load ...... will be given a little high accuracy grade
7, there is 5,6,7,8,9,10 accuracy class level, the smaller the value, the higher accuracy
8, grade (tooth thickness) deviation level designers also integrated specific conditions given sophisticated transmission to a little higher, a little lower to the general machinery, closed to drive a little high, open drive to a low point.
9, (tooth thickness) deviation levels have C, D, E, F, G, H, J, K, L, M, N, P, R, S-class, C-class the largest gap, S-level minimum clearance.
10, regardless of accuracy class, or deviation level, given the higher processing costs are higher, then after a comprehensive analysis of the specific needs of a given appropriate level of precision and bias levels.