- 18 -
RN-RO-RV Gearboxes
-
Application radial load
k
(t)
Transmission
element
1,15 Gear - Tooth No. < 17
1,40 Chain sprocket - Tooth No. < 13
1,25 Chain sprocket - Tooth No. < 20
1,00 Chain sprocket - Tooth No. > 20
2,50
V-belt
pulley
1,25 Toothed-belt pulley
-
Catalogue radial load at shaft centre
[mm] 0 1 2 3 4 5 6
a
17.5 20 25 30 35 40 50
-
Radial load offset from centre
[mm] 0 1
2 3 4 5 6
a
17.5 20
25 30 35 40 50
b
15.5 23
24 27 31 37 39
c
33 43
49 57 66 77 89
Check both (*) and (**) comparisons
(*)
(**)
OUTPUT AXIAL LOADS
Axial load value, both on tensile and compressive stress, and
with radial load:
OUTPUT RADIAL LOADS
Radial (overhung) loads have to be checked with the rating factor given in the gearbox selection tables.
The k
(t)
. rating factor will vary according to the transmission element fitted on the gearbox output shaft according to the
below table.
External Loads
)
t
(
2
r
k
D
M
2000
F
r
r2
F
F
x
a
F
F
F
F
b
x
c
F
F
F
F
r
s(x)
r
r
s(x)
r
r2
r2b(x)
r
r2b(x)
2
2
2
0.2
F
F
r2
a2
F
r2
F
a2