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Mathematical model and bearing contacts of the ZN-type worm gear set cut by oversize hob cutters |
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| Authors: | Hong-Sheng Fang Chung-Biau Tsay |
| Affiliation: | a MIRL, Industrial Technology Research Institute, Hsinchu, Taiwan, ROC b Department of Mechanical Engineering, National Chiao Tung University, Hsinchu 30050, Taiwan, ROC |
| Abstract: | The ZN-type oversize hob cutter for cutting of worm gears is investigated. The mathematical model of the ZN-type worm gear set is developed based on the cutting mechanism and hob cutter parameters. Influences of oversize hob cutter regrinding, worm-thread number and assembly errors on the bearing contacts and kinematical errors of the ZN-type worm gear set are investigated. A numerical example is given to demonstrate the bearing contacts and kinematical errors of the worm gear set. |
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