CHIORINO
Minimum pulleys number of teeth and minimum idler diameter.
Idlers are frequently a mean to apply strain to the drive when the
center distance is fixed but also to increase the number of teeth in
mesh to the small pulley. A toothed idler on the inside of the belt on
the loose side is recommended with respect to a back side idler. Drives
with inside flat idlers are not recommended as noise and irregular belt
wear may occur.
•
Diameter for inside idler must be >= of the diameter of the small
pulley in the drive
•
Idler should be positioned respecting: 2 x (small pulley diameter
+ large pulley diameter) < Center distance
•
Idler must be installed on a stiff support
•
Idlers width should be >= of pulley width
•
Idler position is on the loose side range of the belt drive
Flexibility
Type of belt
Profile
Cords
Timing
pulley
z min
Flat idler
min dia
(mm)
Timing
pulley
z min
Flat idler
min dia
(mm)
Timing
pulley
z min
Flat idler
min dia
(mm)
Timing
pulley
z min
Flat idler
min dia
(mm)
T2,5
standard
10
15mm
15
18mm
10
15mm
18
15mm
T5
standard
10
30mm
15
30mm
10
30mm
15
30mm
aramid
10
18mm
12
18mm
DT5
standard
10
30mm
15
30mm
aramid
10
18mm
12
18mm
T10
standard
12
60mm
20
60mm
20
60mm
aramid
15
60mm
20
60mm
stainless
12
60mm
20
60mm
HPL
15
100mm
30
100mm
HFE
10
50mm
15
50mm
DT10
standard
12
60mm
20
60mm
aramid
15
60mm
20
60mm
stainless
12
60mm
20
60mm
HFE
10
50mm
15
50mm
T10TP
standard
12
60mm
20
60mm
T20
standard
15
120mm
25
120mm
15
120mm
25
120mm
aramid
15
120mm
20
120mm
stainless
20
130mm
20
130mm
HFE
12
100mm
12
100mm
Flexibility
17