The Timken Company
The Timken Company
4500 Mt Pleasant St. NW
N. Canton, OH 44720
Phone: (234) 262-3000
E-Mail: CustomerCAD@timken.com • Web site: www.timken.com
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Imperial/Inch HercuFlex® Gear Couplings Hubs can be used for either FX (flanged style) or CX (continuous sleeve style).
FXCX HercuFlex Universal Hub Dim Drawing
Unit of Measure
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Part Number

Description 

Bore Size 

Keyway Size 

Nominal Torque

Max Speed (Unbalanced)

Length thru Bore

Dimension HD

CAD

697904339857 N/A FCX-4.5-HUB-3-3/8-7/8X7/16KW; N/A 4-5/16 in N/A 7/8X7/16 in N/A 427,460 in·lb48,296 N·m N/A 2700 rpm N/A 5.31 in N/A 9.09 in230.9 mm N/A
697904337136 N/A FCX-3.5-HUB-3-5/16-7/8X7/16KW; N/A 3-5/16 in N/A 7/8X7/16 in N/A 203,550 in·lb22,998 N·m N/A 3500 rpm N/A 4.19 in N/A 6.87 in174.5 mm N/A
697904334715 N/A FCX-2.5-HUB-3-5/8-7/8X7/16KW; N/A 4-7/16 in N/A 7/8X7/16 in N/A 9005 N·m N/A 4400 rpm N/A 3.03 in N/A 4.97 in126.4 mm N/A
697904339871 N/A FCX-4.5-HUB-3-5/8-7/8X7/16KW; N/A 4-7/8 in N/A 7/8X7/16 in N/A 427,460 in·lb48,296 N·m N/A 2700 rpm N/A 5.31 in N/A 9.09 in230.9 mm N/A
697904338492 N/A FCX-4-HUB-3-7/16-7/8X7/16KW; N/A 3-7/16 in N/A 7/8X7/16 in N/A 311,540 in·lb35,199 N·m N/A 3000 rpm N/A 4.75 in N/A 8.1 in205.7 mm N/A
697904338508 N/A FCX-4-HUB-3-7/8-1"X1/2KW; N/A 3-7/8 in N/A 1x1/2 in N/A 311,540 in·lb35,199 N·m N/A 3000 rpm N/A 4.75 in N/A 8.1 in205.7 mm N/A
697904337174 N/A FCX-3.5-HUB-3-9/16-7/8X7/16KW; N/A 3-9/16 in N/A 7/8X7/16 in N/A 203,550 in·lb22,998 N·m N/A 3500 rpm N/A 4.19 in N/A 6.87 in174.5 mm N/A
697904341485 N/A FCX-5-HUB-3-9/16-7/8X7/16KW; N/A 3-9/16 in N/A 7/8X7/16 in N/A 584,890 in·lb66,084 N·m N/A 2500 rpm N/A 6.03 in N/A 10.24 in260 mm N/A
697904338522 N/A FCX-4-HUB-4"-1"X1/2KW; N/A 4 in N/A 1x1/2 in N/A 311,540 in·lb35,199 N·m N/A 3000 rpm N/A 4.75 in N/A 8.1 in205.7 mm N/A
697904341492 N/A FCX-5-HUB-4"-1"X1/2KW; N/A 4 in N/A 1x1/2 in N/A 584,890 in·lb66,084 N·m N/A 2500 rpm N/A 6.03 in N/A 10.24 in260 mm N/A
697904337198 N/A FCX-3.5-HUB-4-1/16-1"X1/2KW; N/A 4-1/16 in N/A 1x1/2 in N/A 203,550 in·lb22,998 N·m N/A 3500 rpm N/A 4.19 in N/A 6.87 in174.5 mm N/A
697904341508 N/A FCX-5-HUB-4-1/16-1"X1/2KW; N/A 4-1/16 in N/A 1x1/2 in N/A 584,890 in·lb66,084 N·m N/A 2500 rpm N/A 6.03 in N/A 10.24 in260 mm N/A
697904337204 N/A FCX-3.5-HUB-4-1/2-1"X1/2KW; N/A 4-1/2 in N/A 1x1/2 in N/A 203,550 in·lb22,998 N·m N/A 3500 rpm N/A 4.19 in N/A 6.87 in174.5 mm N/A
697904337211 N/A FCX-3.5-HUB-4-1/4-1"X1/2KW; N/A 4-1/4 in N/A 1x1/2 in N/A 203,550 in·lb22,998 N·m N/A 3500 rpm N/A 4.19 in N/A 6.87 in174.5 mm N/A
697904341522 N/A FCX-5-HUB-4-1/4-1"X1/2KW; N/A 4-1/4 in N/A 1x1/2 in N/A 584,890 in·lb66,084 N·m N/A 2500 rpm N/A 6.03 in N/A 10.24 in260 mm N/A
697904338560 N/A FCX-4-HUB-4-1/8-1"X1/2KW; N/A 4-1/8 in N/A 1x1/2 in N/A 311,540 in·lb35,199 N·m N/A 3000 rpm N/A 4.75 in N/A 8.1 in205.7 mm N/A
697904337235 N/A FCX-3.5-HUB-4-11/16-1-1/4X5/8KW; N/A 4-11/16 in N/A 1-1/4x5/8 in N/A 203,550 in·lb22,998 N·m N/A 3500 rpm N/A 4.19 in N/A 6.87 in174.5 mm N/A
697904341546 N/A FCX-5-HUB-4-11/16-1-1/4X5/8KW; N/A 4-11/16 in N/A 1-1/4x5/8 in N/A 584,890 in·lb66,084 N·m N/A 2500 rpm N/A 6.03 in N/A 10.24 in260 mm N/A
697904338577 N/A FCX-4-HUB-4-11/16-1-1/4X5/8KW; N/A 4-11/16 in N/A 1-1/4x5/8 in N/A 311,540 in·lb35,199 N·m N/A 3000 rpm N/A 4.75 in N/A 8.1 in205.7 mm N/A
697904339970 N/A FCX-4.5-HUB-4-13/16-1-1/4X5/8KW; N/A 6-1/16 in N/A 1-1/4x5/8 in N/A 427,460 in·lb48,296 N·m N/A 2700 rpm N/A 5.31 in N/A 9.09 in230.9 mm N/A
697904341553 N/A FCX-5-HUB-4-13/16-1-1/4X5/8KW; N/A 4-13/16 in N/A 1-1/4x5/8 in N/A 584,890 in·lb66,084 N·m N/A 2500 rpm N/A 6.03 in N/A 10.24 in260 mm N/A
697904339987 N/A FCX-4.5-HUB-4-15/16-1-1/4X5/8KW; N/A 6-1/4 in N/A 1-1/4x5/8 in N/A 427,460 in·lb48,296 N·m N/A 2700 rpm N/A 5.31 in N/A 9.09 in230.9 mm N/A
697904341560 N/A FCX-5-HUB-4-15/16-1-1/4X5/8KW; N/A 4-15/16 in N/A 1-1/4x5/8 in N/A 584,890 in·lb66,084 N·m N/A 2500 rpm N/A 6.03 in N/A 10.24 in260 mm N/A
697904339994 N/A FCX-4.5-HUB-4-3/16-1"X1/2KW; N/A 6-3/4 in N/A 1x1/2 in N/A 427,460 in·lb48,296 N·m N/A 2700 rpm N/A 5.31 in N/A 9.09 in230.9 mm N/A
697904337266 N/A FCX-3.5-HUB-4-3/16-1"X1/2KW; N/A 4-3/16 in N/A 1x1/2 in N/A 203,550 in·lb22,998 N·m N/A 3500 rpm N/A 4.19 in N/A 6.87 in174.5 mm N/A
Unit of Measure
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