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The specific load F
Uspez
is the maximum load which one single
belt tooth 1 cm wide can withstand in all operating conditions.
This force is related to the drive rpm.
The total load F
U
transmissible by the belt in the dr ive is
calculated by:
F
U
[N] = F
Uspez
•
z
e
•
b
F
U
[N]
= peripheral force
F
Uspez
[N/cm] = specific load
z
e
= number of teeth in mesh in the small pulley
z
emax
= max. no of teeth in mesh to be considered
for the calculation of the drive
z
emax
= 12 for ELATECH
®
M
z
emax
= 6 for ELATECH
®
V
b [cm]
= belt width in cm
T2,5
Belt characteristics
• Polyurethane timing belt with steel tension cords
• Trapezoidal tooth profile according to DIN 7721 T1
• Metric pitch 2,5 mm
• Ideal for drives where high belt flexibility is requested
• Widely used for conveying, linear drive and light power tran-
smission applications
• Width tolerance: ±0,5 [mm]
• Length tolerance: ± 0,5 [mm/m]
• Thickness tolerance: ±0,2 [mm]
rpm
F
Uspez
[N/cm]
rpm
F
Uspez
[N/cm]
rpm
F
Uspez
[N/cm]
rpm
F
Uspez
[N/cm]
Belt width
b
[mm]
Allowable
tensile load
Type M
F
Tzul
[N]
Allowable
tensile load
Type V
F
Tzul
[N]
Breaking
load
Type M
F
Br
[N]
Specific
spring rate
C
spez
[N]
Weight
[kg/m]
4
6
10
20
50
120
180
240
540
1440
30000
45000
60000
135000
360000
500
750
1000
2250
6000
60
90
120
270
720
0,004
0,007
0,011
0,022
0,055
Tooth shear strength
Other widths are available on request.
0
12,35
20
12,04
40
11,77
60
11,53
80
11,32
100
11,14
200
10,45
300
9,95
400
9,55
500
9,23
600
8,96
700
8,72
Technical data
4500 5,63
5000 5,44
5500 5,28
6000 5,12
6500 4,98
7000 4,85
7500 4,73
8000 4,62
8500 4,51
9000 4,41
9500 4,31
10000 4,22
1900 7,11
2000 7,02
2200 6,86
2400 6,71
2600 6,57
2800 6,45
3000 6,33
3200 6,22
3400 6,11
3600 6,02
3800 5,92
4000 5,83
800
8,51
900
8,33
1000 8,16
1100 8,01
1200 7,87
1300 7,74
1400 7,61
1440 7,57
1500 7,50
1600 7,39
1700 7,29
1800 7,20
Load / Elongation [ % ]
Tooth shear strenght / rpm
F
Uspez [N/cm]