Page 260 - Analysis and Design of Machine Elements

Analysis and Design of Machine Elements
238
Table 9.1 Matching parameters of worms and wormgears [6, 7].
Centre Reference Number of
distance a, Module m, diameter d , Number of teeth of a Profile shift
1
2
3
(mm) (mm) (mm) m d ,(mm ) thread z 1 wormgear z 2 coefficient x 2
1
50 1 18 18 1 82 0.000
1.25 22.4 35 1 62 0.040
1.6 20 51.2 1 51 −0.500
2
4
2 22.4 89.6 1 39 −0.100
2
4
2.5 28 175 1 29 −0.100
2
4
6
100 2 35.5 142 1 82 0.125
2.5 28 175 70 −0.600
45 281.25 62 0.000
3.15 35.5 352.25 1 53 −0.3889

2
4
4 40 640 1 41 −0.500
2
4
5 50 1250 1 31 −0.500
2
4
6
160 3.15 56 555.6 1 83 0.4048
4 40 640 70 0.000
71 1136 62 0.125
5 50 1250 1 53 0.500
2
4
6.3 63 2500.47 1 41 −0.1032
2
4
8 80 5120 1 31 −0.500
2
4
6
(Continued)