Technical data HTD20M

1. Tooth shear strength

specific tooth force

Rotational speed n [rpm] Ftspez [N/cm] Rotational speed n [rpm] Ftspez [N/cm]
0 194,81 1900 92,80
20 191,42 2000 90,62
40 188,09 2200 86,52
60 184,98 2400 82,75
80 182,05 2600 79,25
100 179,29 2800 75,99
150 173,01 3000 72,93
200 167,46 3200 70,06
300 157,96 3400 67,34
400 150,03 3600 64,78
500 143,22 3800 62,34
600 137,25 4000 60,02
700 131,94 4500 54,66
800 127,16 5000 49,84
900 122,81 5500 45,45
1000 118,82 6000 41,44
1100 115,13 6500 37,73
1200 111,71    
1300 108,51    
1400 105,51    
1500 102,69    
1600 100,02    
1700 97,49    
1800 95,09    

The specific tooth force Ftspez is the maximum force N a belt tooth with a width of 1 cm can transmit. This value depends on the rotational speed of the drive pulley. The calculation takes into account each identical carrying values for each meshing tooth. With more than 12 meshing teeth ze is limited to 12.

\begin{align}
F_t&= {F_{tspez} \cdot z_e \cdot b}\\
F_t& = {\text{Tangential force}}\\
F_{tspez}&= {\text{Specific tooth force in N/cm}}\\
b& = \text{Belt width in cm} \\
z_e&= \text{Number of meshing teeth}\\
z_{emax}&= 12
\end{align}

2. Tension cord strength (M) Ftzul [N] (open length)

permitted tensile force of the belt cross-section

Belt width b [mm] 50 75 100 150
HTD20M-HP-PAZ 32500 47500 62500 95000

Specific elasticity Cspez [N]:

Bsp: 10[6] = 106

Belt width b [mm] 50 75 100 150
HTD20M-HP-PAZ 8,50*10[6] 12,75*10[6] 17,00*10[6] 25,50*10[6]

Belt weights [kg/m]:

Belt width b [mm] 50 75 100 150
HTD20M-HP-PAZ 1.00 1.5 2.0 3.0

3. Flexibility

Minimum number of teeth, minimum diameter

 

( X ) without contraflexure

 

 

( X X ) with contraflexure

 

Belt type Number of teeth Tension roller Tension roller
  zmin (X) dmin [mm] (X) dmin [mm] (XX)
HTD20M-HP-PAZ 30 190,99 250