T20-PAZ BRECO® polyurethane timing belt (open length)

Version:

  • Tooth side with nylon
  • Standard delivery length: in rolls of 50 m
  • Please specify shorter dimensions (cut to length) separately
  • Please specify lengths above 50 m separately
  • Standard material: TPUST1 (further materials on request)
  • Steel tension members (standard)
  • Belt widths: 25, 32, 50, 75, 100, 150 mm (in-between widths on request)

Please consider our warranty.

standard storage goods
Cut to length
[mm]
50000
100000

1. Tooth shear strength

specific tooth force

Rotational speed n [rpm] Ftspez [N/cm] Rotational speed n [rpm] Ftspez [N/cm]
0 101,5 1600 49,2
20 98,1 1700 48,2
40 95,3 1800 47,2
60 92,8 1900 46,2
80 90,7 2000 45,3
100 88,7 2200 43,6
200 81,2 2400 42,1
300 75,9 2600 40,7
400 71,8 2800 39,4
500 68,4 3000 38,1
600 65,6 3200 37,0
700 63,1 3400 35,9
800 60,9 3600 34,9
900 59,0 3800 33,9
1000 57,2 4000 33,0
1100 55,6 4500 30,8
1200 54,2 5000 28,9
1300 52,8 5500 27,2
1400 51,5 6000 25,6
1500 50,3 6500 24,2

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] 25 32 50 75 100 150
BRECO T 20 3500 4500 7000 10500 14000 20000

Specific elasticity Cspez [N]:

Bsp: 10[6] = 106

Belt width b [mm] 25 32 50 75 100 150
BRECO T 20 0,87*10[6] 1,13*10[6] 1,75*10[6] 2,63*10[6] 3,5*10[6] 5,0*10[6]

Belt weights [kg/m]:

Belt width b [mm] 25 32 50 75 100 150
BRECO T 20 0,184 0,236 0,368 0,552 0,736 1,095

Pulley width [mm]:

Belt width b [mm] 25 32 50 75 100 150
BRECO T 20 32 40 60 85 110 160

3. Flexibility

Minimum number of teeth, minimum diameter

 

( X ) without contraflexure

 

 

( X X ) with contraflexure

 

Belt type Number of teeth Tension roller Number of teeth Tension roller
  zmin (X) dmin [mm] (X) zmin (XX) dmin [mm] (XX)
BRECO T 20 15 120 25 120

T20-PAZ BRECO® polyurethane timing belt (open length)