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GEARguard 8 Bolt Couplings

“Eight” bolt couplings are used on eight bolt hole gearbox output flanges. Spigots or pilots can be either male or female. IsoFlex couplings are configured to the most common flanges. On “eight” bolt couplings, special steel spigots, pilots or registers are fitted to maintain absolute dimensions.

Note certain couplings need a T bush kit. IsoFlex can supply certain adapters.

 

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Imperial Metric

Coupling Model Gearbox Flange Bolt
Circle Diameter
(mm)
Gearbox Flange Bolt
Size
Gearbox Flange Index
Ring Type
Gearbox Flange Index
Ring Diameter
(mm)
Isoflex Coupling
Outside Diameter
(mm)
Isoflex Coupling
Inside Diameter
(mm)
Isoflex Coupling
Thickness
(mm)
Heavy Duty
(Nm)
Medium Duty
(Nm)
Pleasure Craft
(Nm)
Download
IFC-8100-95 190.5 8 x M16 SHCS ** M 152.4 275 95 38.1 6850 10275 Use Medium Data Sheet
IFC-8100-HT 190.5 8 x M16 SHCS ** M 152.4 275 95 38.1 8500 12750 Use Medium Data Sheet
IFC-8200-95 190.5 8 x M16 SHCS ** M 152.4 242 95 38.1 4500 6750 Use Medium Data Sheet
IFC-8200-HT 190.5 8 x M16 SHCS ** M 152.4 242 95 38.1 7900 11850 Use Medium Data Sheet
IFC-8300-95 152.4 8 x M16 SHCS ** M 95.25 195 73 38.1 3000 4500 Use Medium Data Sheet
IFC-8400-95 200 8 x M16 SHCS ** M 110.01 275 75 38.1 7000 10500 Use Medium Data Sheet
IFC-8400-HT 200 8 x M16 SHCS ** M 110.01 275 75 38.1 8500 12750 Use Medium Data Sheet
IFC-8500-95 222.25 8 x M20 M 127 315 75 45.0 8500 12750 Use Medium Data Sheet
IFC-8534-95 222.25 8 x 3/4inch UNC M 127 315 75 45.0 8500 12750 Use Medium Data Sheet
IFC-8600-95 230 8 x M20 M 150.01 315 100 45.0 8650 12975 Use Medium Data Sheet
IFC-8690-95 228.6 8 x 3/4inch UNC M 152.4 300 95 45.0 8650 12975 Use Medium Data Sheet
IFC-8695-95 241.3 8 x 3/4inch UNC M 152.4 330 95 45.0 9000 13500 Use Medium Data Sheet
IFC-8695-HT 241.3 8 x 3/4inch UNC M 152.4 330 95 45.0 13350 20100 Use Medium Data Sheet
IFC-8700-95 280 8 x 7/8inch UNC F 200 355 75 50.0 10000 15000 Use Medium Data Sheet
IFC-8800-95 340 8 x 1inch UNC M 180.01 455 130 60.0 22500 33750 Use Medium Data Sheet
IFC-8900-95 300 7/8inch UNC M 180 400 130 50 18300 27500 Use Medium
Coupling Model Gearbox Flange Bolt
Circle Diameter
(in)
Gearbox Flange Bolt
Size
Gearbox Flange Index
Ring Type
Gearbox Flange Index
Ring Diameter
(in)
Isoflex Coupling
Outside Diameter
(in)
Isoflex Coupling
Inside Diameter
(in)
Isoflex Coupling
Thickness
(in)
Heavy Duty
(ftlb)
Medium Duty
(ftlb)
Pleasure Craft
(ftlb)
Download
IFC-8100-95 7.50 16mm SHCS M 6.00 10.83 3.74 1.5 6265 9397 Use Medium Data Sheet
IFC-8100-HT 7.50 16m SHCS M 6.00 10.83 3.74 1.5 6150 9220 Use Medium Data Sheet
IFC-8200-95 7.50 16mm SHCS M 6.00 9.53 3.74 1.5 3317 4975 Use Medium Data Sheet
IFC-8200-HT 7.50 16mm SHCS M 6.00 9.53 3.74 1.5 5822 8733 Use Medium Data Sheet
IFC-8300-95 6.00 16mm SHCS M 3.75 7.68 2.87 1.5 2211 3317 Use Medium Data Sheet
IFC-8400-95 7.87 16mm SHCS M 4.33 10.83 2.95 1.5 6150 7600 Use Medium Data Sheet
IFC-8400-HT 7.87 16mm SHCS M 4.33 10.83 2.95 1.5 7600 11400 Use Medium Data Sheet
IFC-8500-95 8.75 8 x M20 M 5.00 12.40 2.95 1.8 6265 9397 Use Medium Data Sheet
IFC-8534-95 8.75 3/4inch UNC M 5.00 12.40 2.95 1.77 6265 9397 Use Medium Data Sheet
IFC-8600-95 9.06 20mm M 5.91 12.40 3.94 1.77 6375 9563 Use Medium Data Sheet
IFC-8690-95 9.00 3/4inch UNC M 6.00 11.81 3.74 1.77 6375 9563 Use Medium Data Sheet
IFC-8695-95 9.50 3/4inch UNC M 6.00 12.99 3.74 1.77 6633 9950 Use Medium Data Sheet
IFC-8695-HT 9.50 3/4inch UNC M 6.00 12.99 3.74 1.77 9650 14500 Use Medium Data Sheet
IFC-8700-95 11.02 7/8inch UNC F 7.87 13.98 2.95 1.97 7370 11055 Use Medium Data Sheet
IFC-8800-95 13.39 1inch UNC M 7.09 17.91 5.12 2.36 16583 24874 Use Medium Data Sheet
IFC-8900-95 11.80 7/8inch UNC M 7.09 15.75 5.12 1.97 13200 20000 Use Medium
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