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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| IFC8100(95) | 190.5 | 8 x M16 SHCS ** | M | 152.4 | 275 | 95 | 38.1 | 8500 | 12750 | Use Medium | Data Sheet |
| IFC8100 HT | 190.5 | 8 x M16 SHCS ** | M | 152.4 | 275 | 95 | 38.1 | 8500 | 12750 | Use Medium | Data Sheet |
| IFC8200(95) | 190.5 | 8 x M16 SHCS ** | M | 152.4 | 242 | 95 | 38.1 | 4500 | 6750 | Use Medium | Data Sheet |
| IFC8200 HT | 190.5 | 8 x M16 SHCS ** | M | 152.4 | 242 | 95 | 38.1 | 7900 | 11850 | Use Medium | Data Sheet |
| IFC8300(95) | 152.4 | 8 x M16 SHCS ** | M | 85.73 | 195 | 73 | 38.1 | 3000 | 4500 | Use Medium | Data Sheet |
| IFC8400(95) | 200 | 8 x M16 SHCS ** | M | 110 | 275 | 75 | 38.1 | 7000 | 10500 | Use Medium | Data Sheet |
| IFC8400 HT | 200 | 8 x M16 SHCS ** | M | 110 | 275 | 75 | 38.1 | 10500 | 15750 | Use Medium | Data Sheet |
| IFC8500(95) | 222.25 | 8 x M20 | M | 127 | 315 | 75 | 45.0 | 8500 | 12750 | Use Medium | Data Sheet |
| IFC8534(95) | 222.25 | 8 x 3/4inch | M | 127 | 315 | 75 | 45.0 | 8500 | 12750 | Use Medium | Data Sheet |
| IFC8600(95) | 230 | 8 x M20 | M | 150 | 315 | 100 | 45.0 | 8650 | 12975 | Use Medium | Data Sheet |
| IFC8690(95) | 228.6 | 8 x 3/4inch | M | 152.4 | 300 | 95 | 45.0 | 8650 | 12975 | Use Medium | Data Sheet |
| IFC8695(95) | 241.3 | 8 x 3/4inch | M | 152.4 | 330 | 95 | 45.0 | 9000 | 13500 | Use Medium | Data Sheet |
| IFC8695 HT | 241.3 | 8 x 3/4inch | M | 152.4 | 330 | 95 | 45.0 | 13350 | 20100 | Use Medium | Data Sheet |
| IFC8700(95) | 280 | 8 x 7/8inch | F | 200 | 355 | 75 | 50.0 | 10000 | 15000 | Use Medium | Data Sheet |
| IFC8800(95) | 340 | 8 x 1inch | M | 180 | 455 | 130 | 60.0 | 22500 | 33750 | Use Medium | Data Sheet |
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| IFC8100(95) | 7.50 | 8 x M16 SHCS ** | M | 6.00 | 10.83 | 3.74 | 1.5 | 6265 | 9397 | Use Medium | Data Sheet |
| IFC8100 HT | 7.50 | 8 x M16 SHCS ** | M | 6.00 | 10.83 | 3.74 | 1.5 | 6150 | 9220 | Use Medium | Data Sheet |
| IFC8200(95) | 7.50 | 8 x M16 SHCS ** | M | 6.00 | 9.53 | 3.74 | 1.5 | 3317 | 4975 | Use Medium | Data Sheet |
| IFC8200 HT | 7.50 | 8 x M16 SHCS ** | M | 6.00 | 9.53 | 3.74 | 1.5 | 5822 | 8733 | Use Medium | Data Sheet |
| IFC8300(95) | 6.00 | 8 x M16 SHCS ** | M | 3.38 | 7.68 | 2.87 | 1.5 | 2211 | 3317 | Use Medium | Data Sheet |
| IFC8400(95) | 7.87 | 8 x M16 SHCS ** | M | 4.33 | 10.83 | 2.95 | 1.5 | 6150 | 7600 | Use Medium | Data Sheet |
| IFC8400 HT | 7.87 | 8 x M16 SHCS ** | M | 4.33 | 10.83 | 2.95 | 1.5 | 7600 | 11400 | Use Medium | Data Sheet |
| IFC8500(95) | 8.75 | 8 x M20 | M | 5.00 | 12.40 | 2.95 | 1.8 | 6265 | 9397 | Use Medium | Data Sheet |
| IFC8534(95) | 8.75 | 8 x 3/4inch | M | 5.00 | 12.40 | 2.95 | 1.8 | 6265 | 9397 | Use Medium | Data Sheet |
| IFC8600(95) | 9.06 | 8 x M20 | M | 5.91 | 12.40 | 3.94 | 1.8 | 6375 | 9563 | Use Medium | Data Sheet |
| IFC8690(95) | 9.00 | 8 x 3/4inch | M | 6.00 | 11.81 | 3.74 | 1.8 | 6375 | 9563 | Use Medium | Data Sheet |
| IFC8695(95) | 9.50 | 8 x 3/4inch | M | 6.00 | 13.0 | 3.74 | 1.8 | 6633 | 9950 | Use Medium | Data Sheet |
| IFC8695 HT | 9.50 | 8 x 3/4inch | M | 6.00 | 13.0 | 3.74 | 1.77 | 9650 | 14500 | Use Medium | Data Sheet |
| IFC8700(95) | 11.02 | 8 x 7/8inch | F | 7.87 | 13.98 | 2.95 | 2.0 | 7370 | 11055 | Use Medium | Data Sheet |
| IFC8800(95) | 13.39 | 8 x 1inch | M | 7.09 | 17.91 | 5.12 | 2.4 | 16583 | 24874 | Use Medium | Data Sheet |
