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.
| 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 |
