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Engineering Guide CDA3000
A-33
Appendix A Formula bank
DE
EN
1
2
3
4
5
6
7
A
Transversal forces
The expected transversal forces must be calculated in order to determine
the correct size of motor and gearing.
F
Q
=(M/r)
.
f
z
M
Torque
r
Radius
f
z
Supplement for radial force calculation
Tin
7290
kg/m³
Epoxy resin
1200
kg/m³
Rubber
920-990
kg/m³
Phenol resin, type 31
1400
kg/m³
Polyethylene
900-950
kg/m³
PVC
1300-1400
kg/m³
Transmission elements
Comments
Supplement fz
Cogwheels
≥
17 cogs
< 17 cogs
1
1.15
Chain wheels
≥
20 cogs
< 20 cogs
< 13 cogs
1
1.25
1.4
Narrow V-belt pulley
dependent on pre-tension
1.5-2
Flat belt with tension roller
dependent on pre-tension
2-2.5
Flat belt without tension
roller
dependent on pre-tension
2.3-3
Table 7.24
Transversal forces
Table 7.23
Density of various materials