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Truly Endless Belts
 

Truly Endless Belts

 

F-Series S-Series Belts

Both Synchro-Power® and Flex Belts are helically wound  

Certain power transmission and high performance positioning applications require more strength and stiffness than a welded belt can provide.

Gates Mectrol offers two types of truly endless belts to meet these needs.

  • Flex Belts - custom lengths 2500 mm (9") to 12500 mm (492").
    Unique process provides the flexibility to have custom sized belts without expensive tooling.  Produced with steel reinforcing cords and the same tough urethane as Gates Mectrol’s standard linear belts

 Flex Belt Specifications 2500 mm to 12500 mm 
Arrow Down Flex Belt Widths

  • Gates Synchro-Power® Cast Belts - available up to 2250 mm.
    Produced on fixed molds and have a continuously wound steel or aramid cord. They are available in stock sizes with aramid as well as steel reinforcing cords.

 Gates Synchro-Power® Belt Specifications up to 2250 mm
 Gates Synchro-Power® Belt Lengths and Widths

  Contact Application Engineer

 Gates Mectrol PDF File Gates Mectrol Catalog  

Product Features

  • Helically wound cords for high strength, truly endless power transmission capabilities                                            
  • High quality, thermo-set polyurethane designed specifically for timing belt applications (Gates Synchro-Power®) or thermoplastic urethane for longer length belts (Flex)                                               
  • Available with either steel or aramid reinforcement                                              
  • Standard molded sleeves (Gates Synchro-Power®) or custom length belts available - up to 12.5 meters (Flex)                                                 
  • Nylon tooth surface option on Flex Belts for quieter operation

 Common Applications

  • Power Transmission                                               
  • High power, high performance conveying                                         
  • Harsh environment
    - Abrasion and chemical resistance                                           
  • Applications where cleanliness is critical
       

Urethane sleeve timing belts include:                                          

  • Higher abrasion resistance                                           
  • UV stabilizer additive                                           
  • Flexibility in both color and hardness

     Gray Bullet Learn More Gates Mectrol PDF File

 

Truly Endless Timing Belts

Double sided, truly endless, urethane timing belt
is used in the textile industry for fiber winding.

 

Flex Belt Widths                    
    L H XH T5 AT5 T10 T10-HF AT10 T20 AT20 HTD5 HTD8
Minimum Length   99.0" 99.0" 99.0" 2.5 m 2.5 m 2.5 m 2.5 m 2.5 m 2.5 m 2.5 m 2.5 m 2.5 m
Maximum Length   492" 492" 492" 10.0 m 10.0 m 12.5 m 12.5 m 12.5 m 12.5 m 12.5 m 10.0 m 12.5 m
Minimum Width   .25" .50" 1.0" 10 mm 10 mm 10 mm 10 mm 16 mm 16 mm 25 mm 10 mm 16 mm
Maximum Width   6.0" 4.0" 4.0" 100 mm 100 mm 100 mm 100 mm 100 mm 150 mm 150 mm 150 mm 150 mm
                           
Flex Belt Width Tolerances  
    L H XH T5 AT5 T10 T10-HF AT10 T20 AT20 HTD5 HTD8
up to 50 mm    ±0.020" ±0.020" ±0.040" ±0.5 mm ±0.5 mm ±0.5 mm ±0.5 mm ±0.75 mm ±1.0 mm ±1.0 mm ±0.5 mm ±0.75 mm
up to 2"  
>50 mm - 100 mm   ±0.030" ±0.030" ±0.040" ±0.75 mm ±0.75 mm ±0.75 mm ±0.75 mm ±1.0 mm ±1.0 mm ±1.5 mm ±0.75 mm ±1.0 mm
>2" - 4"  
>100 mm - 150 mm   ±0.030" N/A N/A N/A N/A N/A N/A N/A ±1.0 mm ±1.5 mm ±0.75 mm ±1.0 mm
>4" - 6"  
                           
               
Flex Belt Specifications - custom lengths 2500 mm (9") to 12500 mm (492")                
    L H XH T5 AT5 T10 T10-HF AT10 T20 AT20 HTD5 HTD8
Pitch (inch and metric)   .375" .500" .875" 5 mm 5 mm 10 mm 10 mm 10 mm 20 mm 20 mm 5 mm 8 mm
Ultimate Tensile Strength per Inch or 25 mm Belt Width lbf/in 1220 1570 2760 800 1220 1570 2380 2760 2760 4310 2380 2570
N/25 mm 5430 6980 12280 3560 5430 6980 10590 12280 12280 19170 10590 11430
Max. Allowable Belt Tension per Inch or 25 mm Belt Width lbf/in 300 390 690 200 300 390 590 690 690 1070 590 640
N/25 mm 1330 1730 3070 890 1330 1730 2620 3070 3070 4760 2620 2850
Allowable Effective Tension for the Belt Teeth (15 and More Teeth in Mesh) lbf/in 360 440 880 200 290 380 380 580 710 1220 230 420
N/25 mm 1600 1960 3910 890 1290 1690 1690 2580 3160 5430 1020 1870
Specific Weight lbf/ft/in 0.059 0.066 0.180 0.037 0.055 0.074 0.079 0.096 0.125 0.169 0.070 0.101
kgf/m/cm 0.035 0.039 0.105 0.022 0.032 0.043 0.046 0.056 0.073 0.099 0.041 0.059
Min. No. of Pulley Teeth   10 14 18 10 15 14 12 15 15 18 14 20
Min. Pitch Diameter   1.19" 2.23" 5.01" 16 mm 24 mm 45 mm 38 mm 48 mm 96 mm 115 mm 22 mm 51 mm
Min. Diameter of Tension Idler Running on Back of Belt in 2.375 3.125 5.875 1.125 2.375 3.125 2.375 4.750 4.750 7.125 2.375 4.750
mm 60 80 150 30 60 80 60 120 120 180 60 120
Service Temperature Range   -20° C to +70° C (-4° F to 158° F)
Standard Color   White

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Gates Synchro-Power® Cast Belts Specifications - available up to 2250 mm    
                   
      T2.5 T5 DT5 AT5 T10 DT10 AT10
Pitch      2.5 mm 5 mm 5 mm 5 mm 10 mm 10 mm 10 mm
Ultimate Tensile Strength per Inch or 25mm Belt Width Steel lbf/in 260 740 740 1360 1650 1650 2250
N/25 mm 1160 3290 3290 6050 7340 7340 10010
Kevlar lbf/in N/A 1210 1210 N/A 1490 1490 N/A
N/25 mm N/A 5380 5380 N/A 6630 6630 N/A
Max. Allowable Belt Tension per Inch or 25 mm Belt Width Steel or Kevlar lbf/in 60 180 180 340 410 410 560
N/25 mm 270 800 800 1510 1820 1820 2490
Allowable Effective Tension for Belt Teeth (15 and More Teeth in Mesh)   lbf/in 60 200 200 290 380 380 580
N/25 mm 270 890 890 1290 1690 1690 2580
Specific Belt Weight Steel lbf/ft/in 0.024 0.035 0.044 0.058 0.075 0.101 0.111
kgf/m/cm 0.014 0.021 0.026 0.034 0.044 0.059 0.065
Kevlar lbf/ft/in N/A 0.033 0.037 N/A 0.062 0.082 N/A
kgf/m/cm N/A 0.020 0.023 N/A 0.036 0.048 N/A
Minimum Number of Pulley Teeth     12 10 12 15 14 18 15
Min. Pitch Diameter     10 mm 16 mm 20 mm 24 mm 45 mm 57 mm 48 mm
Min. Diameter of Tension Idler Running on Back of Belt   inch 0.787 1.125 0.787 2.375 3.125 2.250 4.750
  mm 20 30 20 60 80 57 120
Service Temperature Range     -5° C to +70° C (23° F to 158° F)
Hardness     90 Shore A
Standard Color     Natural, Blue
                   
Gates Synchro-Power® Cast Belt Width Tolerances        
                   
      T2.5 T5 DT5 AT5 T10 DT10 AT10
Slit Belts     ±0.3 mm ±0.5 mm ±0.5 mm ±0.5 mm ±0.5 mm ±0.5 mm ±0.75 mm


Gates Synchro-Power® Cast Belts - available up to 2250 mm
                       
Available from stock in sizes listed. For belt lengths not listed, consult a Gates Mectrol applications engineer.
                       
  Belt Length (mm)     Belt Length (mm)   Available Widths
No. of Teeth         No. of Teeth         Min. Max.
T2.5 T5 DT5   T10 DT10   T2.5 4 mm 180 mm
30   150     26 260 260   T5 6 mm 200 mm
33   165     37 370     DT5 6 mm 180 mm
36   180     40 400     T10 10 mm 200 mm
37   185     41 410     DT10 10 mm 180 mm
40   200     44 440     AT5 6 mm 200 mm
43   215     45 450     AT10 16 mm 200 mm
44   220     50 500          
45   225     53 530 530     Belt Length (mm)
48 120       56 560     No. of Teeth    
49   245     60 600 600   AT5 AT10
50   250     61 610     45 225  
51   255     63 630 630   50   500
52   260 260   66 660     51 255  
54   270     69 690     55 275  
55   275     70 700     56 280 560
56   280     72 720 720   30 300  
59 145 295     73 730     61   610
61   305     75 750     66   660
63   315     78 780     68 340  
64 160       80 800     70   700
66   330     81 810     73   730
68   340     84 840 840   75 375  
70   350     85 850     78 390 780
71 177.5 355     88 880     80   800
72 180       89 890     81   810
73 182.5 365     90 900     84 420 840
74 185       91 910     89   890
78   390     92 920 920   91 455  
80 200 400     95 950     92   920
82   410 410   96 960     96   960
84   420     97 970     98   980
89   445     98 980 980   100 500  
90   450     100 1000     101   1010
91   455     101 1010     105   1050
92 230   460   108 1080     108   1080
95   475     110 1100     109 545  
96   480 480   111 1110     115   1150
98 245       114 1140     120 600 1200
100   500     115 1150     121   1210
102   510     121 1210 1210   122 610  
103     515   124 1240 1240        
105   525     125 1250 1250   125   1250
106 265       130 1300     126 630  
109   545     132 1320 1320   132 660 1320
110   550     135 1350 1350   140   1400
112   560     139 1390     144 720  
114 285       140 1400     150 750 1500
115   575     142 1420 1420   156 780  
116 290       144 1440     160   1600
118   590 590   145 1450     165 825  
120   600     146 1460     170   1700
122 305 610     150 1500     180   1800
124   620 620   156 1560     195 975  
126   630     160 1600     210 1050  
127 317.5       161 1610 1610   225 1125  
128   640     170 1700     300 1500  
130   650     175 1750          
132 330 660     178 1780          
135   675     180 1800          
138   690     188 1880 1880        
140   700     196 1960          
144   720     225 2250          
145   725                  
150   750 750                
152 380                    
156   780                  
158 395                    
160   800                  
163   815 815                
168 420 840                  
170   850                  
172     860                
180   900                  
188   940 940                
192 480                    
198   990                  
200 500                    
215   1075                  
216 540                    
220   1100                  
240 600                    
243   1215                  
248 620                    
260 650                    
263   1315                  
276   1380                  
280 700                    
312 780                    
366 915                    
380 950                    

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