SEO Version
77
ELA-flex SD
™
Minimum number of teeth and minimum diameter
Drive without reverse bending
• Timing pulley z
min
= 28
• Idler running on belt teeth d
min
= 120 mm
Drive with reverse bending and double sided belt
• Timing pulley z
min
= 28
• Idler running on belt back d
min
= 180 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]
40
55
85
115
150
10800 14800 22800 30900 41000
0,42 0,57 0,89 1,24 1,7
Flexibility
28,966 0,000
28,452 0,596
27,978 1,172
27,540 1,730
27,136 2,273
26,762 2,802
24,458 5,122
23,239 7,300
22,100 9,257
21,091 11,042
20,195 12,688
19,394 14,216
18,672 15,641
18,014 16,976
17,410 18,230
16,853 19,411
9,630 34,286
9,242 34,837
8,872 35,303
8,521 35,688
16,335 20,526
15,852 21,578
15,398 22,573
15,225 22,957
14,972 23,516
14,569 24,408
14,187 25,254
13,824 26,056
13,478 26,816
13,148 27,536
12,530 28,865
11,960 30,056
11,431 31,121
10,938 32,069
10,476 32,908
10,041 33,645
HTD14M
Belt characteristics
• Truly endless polyurethane timing belt with
round tooth profile and steel tension cords.
Produced according to ISO 13050
• Metric pitch 14 mm
• The round tooth profile, allows a uniform load
distribution that guarantees high perfor-
mance, high transmissible torque and
precise tooth engagement
• Transmissible power up to 200 kW
• Rpm up to 6.000 [1/min]
• Maximum width:
150 [mm]
• Width tolerance:
±1,0 [mm]
• Thickness tolerance:
±0,2 [mm]
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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