AT3 BRECO® polyurethane timing belt (open length)

Version:

  • Standard material: TPUST1 (other materials can be requested)
  • E tension member
  • Minimum length endless joined: 880 mm
  • Preferred delivery in rolls of 50 m or 100 m
  • Preferred timing belt widths: 8, 10, 20, 25 mm

Note:

  • Please specify shorter dimensions (cut to length) separately
  • Please specify lengths above 100 m separately
  • VA tension member available (Ask for minimum order quantity)
  • In-between belt widths are available

Please consider our warranty.

standard storage goods
Cut to length
[mm]
CAD 50000 CAD
CAD 100000 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 38,5 2000 24,764
20 38,099 2200 24,174
40 37,719 2400 23,63
60 37,359 2600 23,123
80 37,015 2800 22,65
100 36,687 3000 22,206
200 35,24 3200 21,788
300 34,034 3400 21,392
400 33,002 3600 21,017
500 32,099 3800 20,661
600 31,297 4000 20,322
700 30,575 4500 19,537
800 29,919 5000 18,829
900 29,317 5500 18,185
1000 28,762 6000 17,593
1100 28,247 6500 17,046
1200 27,766 7000 16,538
1300 27,315 7500 16,063
1400 26,89 8000 15,618
1500 26,489 8500 15,198
1600 26,109 9000 14,802
1700 25,749 9500 14,426
1800 25,405 10000 14,069
1900 25,077    

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] 8 10 20 25
BRECO AT 3 320 400 800 1000

Specific elasticity Cspez [N]:

Bsp: 10[6] = 106

Belt width b [mm] 8 10 20 25
BRECO AT 3 8,0*10[4] 10,0*10[4] 20,0*10[4] 25,0*10[4]

Belt weights [kg/m]:

Belt width b [mm] 8 10 20 25
BRECO AT 3 0,018 0,022 0,044 0,054

Pulley width [mm]:

Belt width b [mm] 8 10 20 25
BRECO AT 3 12 15 26 32

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 AT 3 15 30 25 30

AT3 BRECO® Polyurethan-Zahnriemen (Meterware)