SEO Version
69
ELA-flex SD
™
Minimum number of teeth and minimum diameter
Drive without reverse bending
• Timing pulley z
min
= 15
• Idler running on belt teeth d
min
= 50 mm
Drive with reverse bending and double sided belt
• Timing pulley z
min
= 25
• Idler running on belt back d
min
= 120 mm
rpm
[min
-1
]
M
spez
[Ncm/cm]
P
spez
[W/cm]
rpm
[min
-1
]
M
spez
[Ncm/cm]
P
spez
[W/cm]
rpm
[min
-1
]
M
spez
[Ncm/cm]
P
spez
[W/cm]
0
1200
3400
20
1300
3600
40
1400
3800
60
1440
4000
80
1500
4500
100
1600
5000
200
1700
5500
300
1800
6000
400
1900
6500
500
2000
7000
600
2200
7500
700
2400
8000
800
2600
8500
900
2800
9000
1000
3000
9500
1100
3200
10000
Tooth shear strength
Other widths are available on request
ELA-flexSD
™
Technical data
Belt width [mm]
Allowable tensile load [N]
Weight [kg/m]
16
25
32
50
75
100
150
2600 4000 5100 7900 11900 15800 23700
0,09 0,14 0,18 0,29 0,43 0,57 0,86
Belt characteristics
• Truly endless polyurethane timing belt with steel
tension cords. Metric pitch 10 mm
• Tooth profile and dimension are optimised to
guarantee uniform load distribution and mini
mum deformation under load
• High resistance and low stretch steel cords to
guarantee high stability and low elongation
• Reduced polygonal effect with reduced drive
vibration and noise
• Transmissible power up to 70 kW
• Rpm up to 10.000 [1/min]
• Maximum width:
150 [mm]
• Width tolerance:
±0,5 [mm]
• Thickness tolerance:
±0,2 [mm]
Flexibility
12,048 0,000
11,871 0,249
11,706 0,490
11,550 0,726
11,403 0,955
11,265 1,180
10,684 2,238
10,215 3,209
9,793 4,102
9,424 4,934
9,097 5,716
8,808 6,456
8,547 7,159
8,309 7,831
8,093 8,474
7,893 9,091
5,317 18,931
5,180 19,529
5,048 20,088
4,924 20,625
4,636 21,846
4,377 22,915
4,140 23,841
3,923 24,648
3,724 25,348
3,538 25,933
3,365 26,423
3,202 26,825
3,048 27,127
2,903 27,358
2,766 27,516
2,636 27,598
7,708 9,685
7,534 10,256
7,372 10,807
7,310 11,022
7,219 11,339
7,076 11,855
6,939 12,352
6,810 12,836
6,688 13,305
6,570 13,759
6,349 14,625
6,147 15,447
5,959 16,223
5,782 16,953
5,618 17,649
5,464 18,308
AT10
The total power “P” and the total torque
“M” transmitted by the belt, are calcula-
ted with the following formulas:
P [Kw] = P
spez
•
z
e
•
z
k
•
b / 1000
M [Nm] = M
spez
•
z
e
•
z
k
•
b / 100
Z
e
=
P
= power in Kw
M
= torque in Nm
P
spez
= specific power
M
spez
= specific torque
z
e
= number of teeth in mesh of
the small pulley
z
emax
= 12
z
k
= number of teeth of the small
pulley
b
= belt width in cm
A
= centre distance [mm]
( )
⎥
⎥
⎦
⎤
⎢
⎢
⎣
⎡
⋅π⋅
− ⋅
⋅
⋅
A 2
z z t
arccos
180
Z
k
g
k
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