H1-HH-3-A flender gearbox repair Helical gear Reduction Box H1

Flender/Flender Gear Units/Helical gear Reduction Box H1

. Kgmsliding factor nCnequivalent radius of curvature according to Table 4.4 vmmean sum of velocities4.3 Efciency 1 Since the calculation method for the coefcient of friction according to [WECH8 ] is based on his experimental results, the following limits must be taken into account regarding the validity range of this method (Table 4.: Sliding factor gmThe sliding factor gmrepresents the ratio of the mean sliding velocity to the circumferential speed of the pinion. In order to determine gm, the integral of the relative sliding velocity along the path of contact is calculated and isdivided by the length of the path of contact (Table 4.: Mean sum of velocities mSince the sum of velocities changes only slightly along the path of contact, it is possible to obtain good approximation by using the mean sum of velocities min the calculation. This is found by combining the respective sums of velocities in the prole and lengthwise directions, and (Table 4.:Table 4.8 Limits of the equation for the coefcient of friction according to [ WECH8 ] Designation Formula No. Ranges of validity1N mm0 for right hand helix angles(4. (4.1 4 Load Capacity and Efciency 4.4 Stress Analysis 4.4.1 Preliminary Considerations Different rating standards are available for bevel gears (see Sect. 4.2.1 ). These calculation methods are suitable to quickly obtain an initial conclusion on the loadcapacity of gear pair when certain basic variables are specied. Nevertheless,methods of this kind, which are based exclusively on analytical approaches