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GEARguard 6 Bolt Couplings

“Six” bolt couplings are used on six bolt hole gearbox output flanges. Spigots or pilots can be either male or female. IsoFlex couplings are configured to the most common flanges. Note certain couplings need a T bush kit.

 six bolt coupling

 

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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-6000-95 98.43 6 x 7/16inch M 63.5 150 50 31.75 925 1375 1575 Data Sheet
IFC-6000-HT 98.43 6 x 7/16inch M 63.5 150 50 31.75 1350 2020 2350 Data Sheet
IFC-6100-95 120.65 6 x 1/2inch UNC M 76.2 160 60 38.1 3050 4575 5175 Data Sheet
IFC-6125-95 120.65 6 x 1/2inch UNC F 76.2 160 60 38.1 3050 4575 5175 Data Sheet
IFC-6150-95 120.65 6 x M16 SHCS ** M 76.2 160 60 38.1 3050 4575 5175 Data Sheet
IFC-6300-95 152.4 6 x M16 SHCS ** M 95.25 212 73 38.1 3600 5400 6120 Data Sheet
IFC-6400-95 152.4 6 x M16 SHCS ** M 95.25 195 73 38.1 3000 4500 5100 Data Sheet
IFC-6400-HT 152.4 6 x M16 SHCS ** M 95.25 195 73 38.1 4400 6600 7480 Data Sheet
IFC-6500-95 260 3/4inch UNC M 170 330 95 45.0 8950 13400 Use Medium Data Sheet
IFC-6600-95 205 6 x M16 SHCS ** M 130 260 95 38.1 6000 9000 Use Medium Data Sheet
IFC-6155-95 120.65 6 x M16 SHCS ** M 76.2 160 60 38.1 3050 4575 5175 Data Sheet
IFC-6100-IV 120.65 16mm SHCS M 76.2 160 60 38.1 3050 4575 5175
IFC-6150-HT 120.65 16mm SHCS M 76.2 160 60 38.1
IFC-6100-HT 120.65 16mm SHCS M 76.2 160 60 38.1
IFC-6150-IV 120.65 16mm SHCS M 76.2 169 60 38.1 3050 4575 5175
IFC-6155-HT 120.65 16mm SHCS M 76.2 160 60 38.1
IFC-6300-IV 152.4 16mm SHCS M 95.25 212 73 38.1 3600 5400 6120
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-6000-95 3.88 7/16inch M 2.50 5.91 1.97 1.25 682 1013 1161 Data Sheet
IFC-6000-HT 3.88 7/16inch M 2.5 5.91 1.97 1.25 980 1460 1700 Data Sheet
IFC-6100-95 4.75 1/2inch UNC M 3.00 6.3 2.36 1.5 2248 3372 3814 Data Sheet
IFC-6125-95 4.75 1/2inch UNC F 3.00 6.3 2.36 1.5 2248 3372 3814 Data Sheet
IFC-6150-95 4.75 16mm SHCS M 3.00 6.3 2.36 1.5 2248 3506 3814 Data Sheet
IFC-6300-95 6.00 16mm SHCS M 3.75 8.35 2.87 1.5 2248 4090 4636 Data Sheet
IFC-6400-95 6.00 16mm SHCS M 3.75 7.68 2.87 1.5 2211 3317 3759 Data Sheet
IFC-6400-HT 6.00 16mm SHCS M 3.75 7.68 2.87 1.5 3243 4864 5513 Data Sheet
IFC-6500-95 10.24 3/4inch UNC M 6.69 12.99 3.74 1.77 6596 9894 9894 Data Sheet
IFC-6600-95 8.07 16mm SHCS M 5.12 10.24 3.74 1.5 5822 8733 8733 Data Sheet
IFC-6155-95 4.75 7/16inch M 3.00 6.3 2.36 1.5 2250 3350 3800 Data Sheet
IFC-6100-IV 4.75 1/2 M 3.00 6.3 2.36 1.5 2250 3350 3800
IFC-6150-HT 4.75 16mm SHCS M 3.00 6.3 2.36 1.5
IFC-6100-HT
IFC-6150-IV 4.75 16mm SHCS M 3.00 6.3 2.36 1.5 2250 3350 3800
IFC-6155-HT 4.75 7/16inch M 3.75 8.35 2.87 1.5
IFC-6300-IV 6.00 16mm SHCS M 3.75 8.35 2.87 1.5 2600 3900 4430
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