CHIARAVALLI
9
RADIAL LOADS F
R
CHC - RADIAL LOADS F
R
The radial loads is proportional to the requested torque and inversely proportional to the
transmission member diameter following this formula.
2000
T
T.e.f.
D
F
R
=
N
.
.
F
R
a
(b+x)
F
Rx
≤
.
N
F
R
= Radial load
T
= Nm (Torque)
T.e.f. = Transmission element factor
T.e.f. = 1,15 gear
= 1,4 chain spocket
= 1,75 v-pulley
= 2,5 flat-pulley
D
= Transmission element diameter
F
R
= Radial load on the centre line
a,b,x = see table
When the radial loads is not applied on the centre line of the shaft it is necessary to use the
following formula.
CONSTANTS’ VALUES
n2
10
40
60
80
100
120
150
180
250
400
CHC 16-20
2300
2300
2180
1980
1840
1630
1400
1320
1080
920
CHC 25
4800
4800
4370
3970
3680
3470
2710
2550
2150
1840
CHC 30
6300
6300
5550
5040
4510
3800
3530
3320
2800
2390
CHC 35-40
7500
7500
6590
5990
5230
4570
4240
3900
3350
2860
N
F
R
Output shaft radial loads & axial loads F
R
, F
A
CHC 16-20
CHC 25
CHC 30
CHC 35-40
a
103
116,5
130
147
b
83
91,5
100
112
min1
F
A
=
F
R
F
RX
F
R
x
L/2
L
1
5