T20 BRECOFLEX® polyurethane timing belt

Version:

  • Standard, single-sided
  • Preferred belt widths: 32, 50, 75, 100 mm (150 mm available for sizes from 1,500 mm to 15,000 mm)
  • In-between widths, larger widths and other dimensions are possible on request

Available endless lengths:

  • For standard lengths refer to table
  • Over 1,500 mm: any number of teeth available (minimum purchase amount for intermediate lengths on request)
  • Over 20,000 mm: please enquire
  • Under 1,500 mm: further lengths on request

Please consider our warranty.

standard storage goods
Length Teeth
[mm]
CAD 1500 75 CAD
CAD 1600 80 CAD
CAD 1700 85 CAD
CAD 1800 90 CAD
CAD 1900 95 CAD
CAD 2000 100 CAD
CAD 2120 106 CAD
CAD 2240 112 CAD
CAD 2360 118 CAD
CAD 2500 125 CAD
CAD 2660 133 CAD
CAD 2800 140 CAD
CAD 3000 150 CAD
CAD 3160 158 CAD
CAD 3360 168 CAD
CAD 3560 178 CAD
CAD 3760 188 CAD
CAD 4000 200 CAD
CAD 4260 213 CAD
CAD 4500 225 CAD
CAD 4760 238 CAD
CAD 5000 250 CAD
CAD 5300 265 CAD
CAD 5600 280 CAD
CAD 6000 300 CAD
CAD 6300 315 CAD
CAD 6700 335 CAD
CAD 7100 355 CAD
CAD 7500 375 CAD
CAD 8000 400 CAD
CAD 8500 425 CAD
CAD 9000 450 CAD

Belt width b [cm]

\begin{align}
b& = {F_U \over {z_e \cdot F_{Uspez}}} && F_U [N] \\
b& = {100 \cdot M \over {z_1 \cdot z_e \cdot M_{spez}}} && M [Nm]\\
b& = {1000 \cdot P \over {z_1 \cdot z_e  \cdot P_{spez}}} && P [kW]
\end{align}

Load bearing characteristics of the drive

when belt width [cm] is

\begin{align}
F_{U}& = {F_{Uspez} \cdot z_e \cdot b} &&[N]\\
M& = {{M_{spez} \cdot z_1 \cdot z_e \cdot b} \over {100}} &&[Nm]\\
P& = {{P_{spez} \cdot z_1 \cdot z_e \cdot b} \over {1000}} &&[kW]
\end{align}

Number of teeth in mesh

\begin{align}
 z_{e max}& = {12}\\
 z_e& = {{{z_1} \over {180}} \cdot \arccos{{t \cdot (z_2 - z_1)} \over {2\pi \cdot a}}}\\
 \end{align}

 

1. Tooth shear strength

specific belt tooth strength

Rotational speed n [rpm] Fuspez [N/cm] Mspez [Ncm/cm] Pspez [W/cm] Rotational speed n [rpm] Fuspez [N/cm] Mspez [Ncm/cm] Pspez [W/cm]
0 101,500 32,300 0,000 1600 49,200 15,660 26,200
20 98,100 31,200 0,654 1700 48,200 15,330 27,300
40 95,300 30,300 1,271 1800 47,200 15,010 28,300
60 92,800 29,500 1,856 1900 46,200 14,710 29,300
80 90,700 28,900 2,420 2000 45,300 14,420 30,200
100 88,700 28,200 2,960 2200 43,600 13,890 32,000
200 81,200 25,900 5,420 2400 42,100 13,400 33,700
300 75,900 24,200 7,590 2600 40,700 12,950 35,200
400 71,800 22,900 9,570 2800 39,400 12,530 36,700
500 68,400 21,800 11,410 3000 38,100 12,130 38,100
600 65,600 20,900 13,110 3200 37,000 11,770 39,400
700 63,100 20,100 14,730 3400 35,900 11,420 40,700
800 60,900 19,400 16,250 3600 34,900 11,090 41,800
900 59,000 18,780 17,700 3800 33,900 10,780 42,900
1000 57,200 18,220 19,080 4000 33,000 10,490 43,900
1100 55,600 17,710 20,400 4500 30,800 9,810 46,200
1200 54,200 17,240 21,700 5000 28,900 9,210 48,200
1300 52,800 16,800 22,900 5500 27,200 8,660 49,900
1400 51,500 16,400 24,000 6000 25,600 8,160 51,200
1500 50,300 16,020 25,200 6500 24,200 7,690 52,400

Rotational speeds over 6500 rpm and/or belt speeds over 40 m/s are in need of a special drive design. Please request for our advice.

2. Tension cord strength [N]

permitted tensile force of the belt Fzul

Belt width b [mm] 32 50 75 100 150
SYNCHROFLEX T20 4750 7750 12000 16000 24500
BRECOFLEX T20 4750 7750 12000 16000 24500
BRECOFLEX T20-DL 4750 7750 12000 16000 -
BRECOFLEX T20-T 4750 7750 12000 16000 -
BRECOFLEX T20-DR 4750 7750 12000 16000 -

3. Belt weights [kg/m]

Belt width b [mm] 32 50 75 100 150
SYNCHROFLEX T20 0,269 0,440 0,660 0,875 0,839
BRECOFLEX T20 0,236 0,368 0,552 0,736 1,095
BRECOFLEX T20-DL 0,319 0,499 0,753 1,004 -
BRECOFLEX T20-T 0,315 0,495 0,746 0,994 -
BRECOFLEX T20-DR 0,430 0,675 1,016 1,354 -

4. Flexibility

Minimum numbers of teeth, minimum diameter

( X ) without contraflexure

( X X ) with contraflexure

Belt type Number of teeth zmin ( X ) Tension roller dmin [mm] ( X ) Number of teeth zmin ( X X ) Tension roller dmin [mm] ( X X )
SYNCHROFLEX T20 15 120 25 120
BRECOFLEX T20 15 120 25 120
BRECOFLEX T20-DL 25 150 25 180
BRECOFLEX T20-T 15 120 25 180
BRECOFLEX T20-DR 25 150 25 180

T20 BRECOFLEX® Polyurethan-Zahnriemen