L-PAZ BRECOFLEX® polyurethane timing belt

Version:

  • Nylon tooth facing
  • 3/8" = 9,525 mm
  • Preferred belt widths: 9.53, 12.7, 19.1, 25.4, 50.8, 101.6 mm
  • In-between widths, larger widths and other dimensions are possible on request

Available endless lengths:

  • For standard delivery lengths refer to table
  • Under 1,066.8 mm: further lengths on request
  • Over 1,066.8 mm: any number of teeth available (minimum purchase amount for intermediate lengths on request)
  • Over 14,992.35 mm: please enquire
  • A length of 1,066.8 mm and over available, minimum purchase amount on request

Please consider our warranty.

standard storage goods
Length Teeth
[mm]
CAD 314,33 33 CAD
CAD 381 40 CAD
CAD 476,25 50 CAD
CAD 514,35 54 CAD
CAD 533,4 56 CAD
CAD 571,5 60 CAD
CAD 609,6 64 CAD
CAD 647,7 68 CAD
CAD 685,8 72 CAD
CAD 723,9 76 CAD
CAD 762 80 CAD
CAD 819,15 86 CAD
CAD 876,3 92 CAD
CAD 933,45 98 CAD
CAD 990,6 104 CAD
CAD 1066,8 112 CAD
CAD 1143 120 CAD
CAD 1219,2 128 CAD
CAD 1371,6 144 CAD
CAD 1447,8 152 CAD
CAD 1524 160 CAD
CAD 1600,2 168 CAD
CAD 1676,4 176 CAD
CAD 1790,7 188 CAD
CAD 1905 200 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 37,400 5,670 0,000 2000 18,780 2,850 5,960
20 36,300 5,500 0,115 2200 18,220 2,760 6,370
40 35,300 5,350 0,224 2400 17,710 2,690 6,750
60 34,500 5,230 0,329 2600 17,250 2,610 7,120
80 33,800 5,120 0,429 2800 16,810 2,550 7,470
100 33,100 5,020 0,526 3000 16,400 2,490 7,810
200 30,700 4,650 0,974 3200 16,020 2,430 8,140
300 28,900 4,380 1,377 3400 15,660 2,370 8,450
400 27,500 4,180 1,749 3600 15,320 2,320 8,760
500 26,400 4,010 2,100 3800 15,000 2,270 9,050
600 25,500 3,860 2,430 4000 14,690 2,230 9,330
700 24,700 3,740 2,740 4500 13,990 2,120 9,990
800 24,000 3,630 3,040 5000 13,360 2,030 10,610
900 23,300 3,530 3,330 5500 12,790 1,939 11,170
1000 22,700 3,450 3,610 6000 12,270 1,860 11,690
1100 22,200 3,370 3,880 6500 11,790 1,787 12,160
1200 21,700 3,290 4,140 7000 11,340 1,719 12,600
1300 21,300 3,220 4,390 7500 10,930 1,656 13,010
1400 20,800 3,160 4,630 8000 10,540 1,597 13,380
1500 20,400 3,100 4,870 8500 10,170 1,542 13,720
1600 20,100 3,040 5,100 9000 9,830 1,490 14,040
1700 19,720 2,990 5,320 9500 9,500 1,440 14,330
1800 19,390 2,940 5,540 10000 9,190 1,393 14,590
1900 19,080 2,890 5,750

Rotational speeds over 10000 rpm and/or belt speeds over 80 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] 9,53 12,7 19,1 25,4 38,1 50,8 76,2 101,6
BRECOFLEX L 420 630 1050 1470 2240 3080 46,9 6300

3. Belt weights [kg/m]

Belt width b [mm] 9,53 12,7 19,1 25,4 38,1 50,8 76,2 101,6
BRECOFLEX L 0,038 0,044 0,066 0,088 0,133 0,178 0,266 0,356

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 )
BRECOFLEX L 15 60 20 60

L-PAZ BRECOFLEX® Polyurethan-Zahnriemen