4 Bolt Couplings

Four bolt couplings are used on four bolt hole gearbox output flanges. Spigots or pilots can be either male or female. Isoflex couplings are configured to the most common flanges.

* Spicer bolt pattern






View:


ModelGearbox Flange
Bolt Circle
Diameter (mm)(in)
Gearbox Flange
Bolt Size
Gearbox Flange
Index Ring
Type
Gearbox Flange
Index Ring
Diameter (mm)(in)
Isoflex Coupling
Outside
Diameter (mm)(in)
Isoflex Coupling
Inside
Diameter (mm)(in)
Isoflex Coupling
Thickness (mm)(in)
Heavy Duty (Nm)(ftlb)Medium Duty (Nm)(ftlb)Pleasure Craft (Nm)(ftlb)Data Sheet
IFC-4200-90783.07M10M10FF501.971254.92351.3825.00.98500369750553850626Download
IFC-4300-SP82.553 1/4" PCD3/8 inch UNF3/8 inch UNFFF66.802.6301254.92451.7725.00.98500369750553850626Download
IFC-4300-9582.553.253/8inch3/8inchFF63.52.501254.92351.3825.00.98500369750553850626Download
IFC-4400-951003.94M1010mmFF652.561455.71501.9725.00.98500369750553850626Download
IFC-4500-HT107.954.257/16 inch7/16 inchFF63.52.501485.83451.7728.61.1311808701770130420001474Download
IFC-4500-IV-HT107.954.257/16inch7/16inchFF63.52.501505.91542.12361.4211808551770128020001445Download
IFC-4500-95107.954.257/16inch7/16inchFF63.52.501505.91451.7728.61.1367549710007371150848Download
IFC-4550-HT107.954.257/16inch7/16inchFF63.52.501505.91451.7728.61.13900663135099515301128Download
IFC-4550-95107.954.257/16inch7/16inchFF63.52.501505.91451.7728.61.13435321650479740545Download
IFC-4600-95803.15M10M10MM602.361254.92351.3825.00.98375276560413640472Download
IFC-4700-95*95.253.75 rect7/16inch rect7/16inchFF69.852.751355.31501.9732.01.266004429006631000737Download
IFC-4800-95*79.3753.13 rect3/8inch rect3/8inchFF60.332.381254.92351.3825.00.98310228465343525387Download
IFC-4900-95*120.654.75 rect1/2inch rect1/2inchFF95.253.751756.89501.9736.51.4412008841800132720001474Download