T20 CONTI® SYNCHROFLEX polyurethane timing belt

Version:

  • Standard, single-sided
  • Standard T profile according to DIN 7721 with metric pitch and trapezoidal teeth
  • The technical data refer to the standard casting polyurethane and standard steel tension members
  • Preferred belt widths: 32, 50, 75, 100 mm

On request:

  • Double-sided; with flights on the back of the belt; with reinforced back of the belt; polyurethane special materials; further tension member versions (steel, textile tension member); antistatic, coloured, mechanical reworked
  • In-between widths, larger widths and other dimensions

Please consider our warranty.

standard storage goods
Length Teeth
[mm]
CAD 1260 63 CAD
CAD 1460 73 CAD
CAD 1780 89 CAD
CAD 1880 94 CAD
CAD 2360 118 CAD
CAD 2600 130 CAD
CAD 3100 155 CAD
CAD 3620 181 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 CONTI® SYNCHROFLEX Polyurethan-Zahnriemen