T1/2"-PAZ BRECO® polyurethane timing belt (open length)

Version:

  • Tooth side with nylon
  • Standard delivery in rolls of 50 or 100 m
  • Cut to lengths / lengths > 100 m on request
  • Standard material: TPUST1 (further materials on request)
  • Steel tension member (standard)
  • Stainless steel tension member (minimum purchase amount on request)
  • Belt widths: 12.7, 19.1, 25.4, 38.1, 50.8, 76.2, 101.6, 152.4 mm (in-between widths on request)

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 44,0 2000 22,1
20 42,7 2200 21,5
40 41,6 2400 20,9
60 40,7 2600 20,3
80 39,8 2800 19,81
100 39,1 3000 19,33
200 36,1 3200 18,88
300 34,1 3400 18,45
400 32,5 3600 18,05
500 31,1 3800 17,68
600 30,0 4000 17,32
700 29,1 4500 16,49
800 28,2 5000 15,74
900 27,5 5500 15,07
1000 26,8 6000 14,46
1100 26,2 6500 13,89
1200 25,6 7000 13,36
1300 25,1 7500 12,87
1400 24,6 8000 12,42
1500 24,1 8500 11,99
1600 23,7 9000 11,58
1700 23,2 9500 11,19
1800 22,9 10000 10,83
1900 22,5

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] 12,7 19,1 25,4 38,1 50,8 76,2 101,6 152,4
BRECO T 1/2´´ 1000 1600 2200 3200 4400 6600 8800 13200

Specific elasticity Cspez [N]:

Bsp: 10[6] = 106

Belt width b [mm] 12,7 19,1 25,4 38,1 50,8 76,2 101,6 152,4
BRECO T 1/2´´ 0,25*10[6] 0,4*10[6] 0,55*10[6] 0,8*10[6] 1,1*10[6] 1,65*10[6] 2,2*10[6] 3,3*10[6]

Belt weights [kg/m]:

Belt width b [mm] 12,7 19,1 25,4 38,1 50,8 76,2 101,6 152,4
BRECO T 1/2´´ 0,053 0,081 0,108 0,161 0,216 0,324 0,432 0,648

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 1/2´´ 14 60 20 80

T1/2"-PAZ BRECO® Polyurethan-Zahnriemen (Meterware)