HTD8M-HP CONTI® SYNCHRODRIVE polyurethane timing belt (open length)

Version:

  • single-sided; standard colour black
  • HP reinforced tension member version

High capacity profile HTD (high torque drive) with a round tooth for a perfect meshing behaviour and optimised force - and load distribution according to the design ISO/F DIS 13050

The technical data refer to standard polyurethane (thermoplastic) and standard steel cord tension members (two-filament arrangement S+Z).

On request:

  • Polyurethane special materials
  • additional tension member versions (steel)
  • optional with nylon tooth facing (PAZ) and/or backing (PAR)
  • antistatic
  • In-between width
  • Special lengths
  • endless joined timing belts (V) with more than 1000mm length and 5mm pitch

Standard lengths: 30m and/or 60m

Please consider our warranty.

standard storage goods
Cut to length
[mm]
CAD 30000 CAD
CAD 60000 CAD
CAD CAD

1. Tooth shear strength

specific tooth force

Rotational speed n [rpm] Ftspez [N/cm] Rotational speed n [rpm] Ftspez [N/cm]
0 76,440 1900 40,427
20 75,137 2000 39,670
40 73,930 2200 38,254
60 72,804 2400 36,949
80 71,750 2600 35,739
100 70,758 2800 34,611
150 68,512 3000 33,555
200 66,534 3200 32,563
300 63,169 3400 31,626
400 60,373 3600 30,739
500 57,980 3800 29,898
600 55,889 4000 29,096
700 54,033 4500 27,248
800 52,363 5000 25,585
900 50,846 5500 24,074
1000 49,457 6000 22,689
1100 48,174 6500 21,410
1200 46,984 7000 20,223
1300 45,873 7500 19,116
1400 44,832 8000 18,077
1500 43,853 8500 17,100
1600 42,928 9000 16,177
1700 42,051 9500 15,303
1800 41,219 10000 14,472

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] 10 15 20 30 50 85 100
HTD8M-HF 650 975 1300 1950 3250 5525 6500
HTD8M-HP 1200 1800 2400 3600 6000 10200 12000

Specific elasticity Cspez [N]:

Bsp: 10[6] = 106

Belt width b [mm] 10 15 20 30 50 85 100
HTD8M-HF 2,0*10[5] 3,0*10[5] 4,0*10[5] 6,0*10[5] 1,0*10[6] 1,7*10[6] 2,0*10[6]
HTD8M-HP 3,5*10[5] 5,25*10[5] 7,0*10[5] 1,05*10[6] 1,75*10[6] 2,975*10[6] 3,5*10[6]

Belt weights [kg/m]:

Belt width b [mm] 10 15 20 30 50 85 100
HTD8M-HF 0,054 0,081 0,108 0,162 0,27 0,459 0,54
HTD8M-HP 0,0632 0,0948 0,1264 0,1896 0,316 0,5372 0,632

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)
HTD8M-HF 16 40,74 60
HTD8M-HP 20 50,93 100

HTD8M-HP CONTI® SYNCHRODRIVE Polyurethan-Zahnriemen (Meterware)