Gates Mectrol produces a full line of high strength, low stretch flat belts for use in lifting and positioning applications.

These flat belts are normally sold in open ended lengths and are clamped on each end.

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 Flat Belt Specifications

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 Pulley Design Recommendations

 Gates Mectrol Catalog 

Applications	Belt Pitches
Lifting	F8, FL8, F12, FL12, F30, FX9, FX12
Conveying - General, Bulk & SheetRock	WF12

Nominal Thickness F8 0.080" FL8 0.080" WF12 0.125 F12 0.125" FL12 0.125" F30 * 3  mm FX9 0.090" FX12 0.120"

Flat Belt Availability

Application Characteristics  Heavy load lifting or lowering Allows for "slip" requirement Smooth uniform motion  Small bending radius for small design envelope  Very low stretch characteristics		Product Features Smooth, vibration free operation Small pulley diameters High strength, low stretch for long life Sealed edges, no cord fraying Easily guided with flanged pulleys Kevlar®  cord No lubrication needed No retensioning required
Additional Ordering information  Flat Belt Specifications

Flat Belt Availability
F8, F8U FL8 WF12 F12, F12U FL12 F30* FX9, FX12 Min. Welded Belt Length inch 19 21 21 20 24 N/A N/A mm 483 533 533 508 610 N/A N/A Standard Roll Length feet 200 200 200 200 200 200 200 meters 61 61 61 61 61 61 61 Standard Slitting Lanes inch 1 1 1 1 1 1 1 mm 25 25 25 25 25 25 25 All roll lengths are +/- 1%                                 Available Widths     Code Inch mm F8, FL8, F12, FL12, F8U, F12U WF12 F30* FX9, FX12     25 1/4 6.35             50 1/2 12.7 X           75 3/4 19.05 X     X     100 1 25.4 X   X X     150 1 1/2 38.1 X     X     200 2 50.8 X X X X     300 3 76.2 X X X X     400 4 101.6 X X X X     500 5 127.0   X         600 6 152.4   X         700 7 177.8   X         800 8 203.2   X                           Width Tolerances         Width F8,FL8,F12, FL12, F8U, F12U WF12 F30* FX9, FX12         Up to 2" +/-.020" +/-.020" +/-.030" +/-.030"         >2" - 4" +/-.030" +/-.030" +/-.030" +/-.030"         >4 - 6" N/A +/-.030" N/A N/A         >6" N/A +/-.060" N/A N/A         * Available after December 2007
Flat Belt Specifications
F8 FL8 WF12 F12 FL12 F30* FX9 FX12 Nominal Thickness inch   0.08 0.08 0.125 0.125 0.125 0.12 0.09 0.12 metric   2.0 2.0 3.0 3.0 3.0 3.0 2.3 3.0 Ultimate Tensile Strength per Inch or 25mm Belt Width Steel lbf/in 1570 3160 N/A 1570 5030 7020 N/A N/A N/25mm 6980 14060 N/A 6980 22380 31230 N/A N/A Kevlar lbf/in 1820 N/A 1360 2050 N/A N/A 4090 4680 N/25mm 8100 N/A 6050 9120 N/A N/A 18190 20820 Max. Allowable Belt Tension per Inch or 25mm Belt Width Steel and Kevlar Open Ended lbf/in 390 790 340 390 1250 1750 1020 1170 N/25mm 1730 3510 1510 1730 5560 7780 4540 5200 Welded lbf/in 240 240 180 240 N/A N/A N/A N/A N/25mm 1070 1070 800 1070 N/A N/A N/A N/A Specific Weight Steel lbf/ft/in 0.057 0.073 N/A 0.078 0.113 0.128 N/A N/A kgf/m/cm 0.033 0.043 N/A 0.046 0.066 0.075 N/A N/A Kevlar lbf/ft/in 0.045 N/A 0.045 0.066 N/A N/A 0.043 0.060 kgf/m/cm 0.026 N/A 0.026 0.039 N/A N/A 0.025 0.035 Specific Belt Stiffness (open ended) Steel lbf/in 109000 213600 N/A 109000 334600 440000 N/A N/A N/mm 19085 37410 N/A 19085 58600 77050 N/A N/A Kevlar lbf/in 60700 N/A 42000 60700 N/A N/A 90000 130000 N/mm 10635 N/A 7350 10635 N/A N/A 15760 22760 Min. Pulley Diameter     inch 2.0 2.375 2.0 2.0 3.0 5.0 3.0 4.0     mm 50 60 50 50 75 125 75 100 Min. Diameter of Tensioning Idler Running on Back of Belt   inch 3.0 4.75 3.0 3.0 4.75 8.0 4.5 6.0   mm 80 120 80 80 120 200 115 150 Standard Material       PU PU PU PU PU PU PU or TPR PU or TPR Standard Colors (N=Natural, BK=Black)   N BK N N BK BK BK BK *Available after December 2007
Pulley Design Recommendations Gates Mectrol flat belts have very high strength and extremely low stretch. They are designed to be run on flat faced pulleys with flanges.Crowned pulleys should not be used.                                                        Gates Mectrol flat belts are not recommended for applications which involve belt twisting. Should an application require that a belt be twisted 90°, the length over which the twist occurs should be a minimum of 15 inches for a one inch wide belt                                                       Gates Mectrol flat belts are not to be used in "lat" pulldown fitness machines or other machines in which belt twist is unrestricted.