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

697904334678 N/A FCX-2.5-HUB-3-3/16-3/4X3/8KW; N/A 4-3/16 in N/A 3/4X3/8 in N/A 9005 N·m N/A 4400 rpm N/A 3.03 in N/A 4.97 in126.4 mm N/A
697904331011 N/A FCX-1-HUB-1-13/16-1/2X1/4KW; N/A 1-13/16 in N/A 1/2X1/4 in N/A 11,300 in·lb1,277 N·m N/A 6000 rpm N/A 1.69 in N/A 2.49 in63.3 mm N/A
697904331059 N/A FCX-1-HUB-1-3/8-5/16X5/32KW; N/A 1-3/8 in N/A 5/16X5/32 in N/A 11,300 in·lb1,277 N·m N/A 6000 rpm N/A 1.69 in N/A 2.49 in63.3 mm N/A
697904333053 N/A FCX-2-HUB-15/16-1/4X1/8KW; N/A 15/16 in N/A 1/4x1/8 in N/A 26,100 in·lb2,949 N·m N/A 5500 rpm N/A 2.44 in N/A 3.29 in83.5 mm N/A
697904331950 N/A FCX-1.5-HUB-1-5/8-3/8X3/16KW; N/A 1 5/8 in N/A 3/8x3/16 in N/A 26,100 in·lb2,949 N·m N/A 5500 rpm N/A 1.94 in N/A 3.29 in83.5 mm N/A
697904331974 N/A FCX-1.5-HUB-1-7/16-3/8X3/16KW; N/A 1 7/16 in N/A 3/8x3/16 in N/A 26,100 in·lb2,949 N·m N/A 5500 rpm N/A 1.94 in N/A 3.29 in83.5 mm N/A
697904333107 N/A FCX-2-HUB-1-7/8-1/2X1/4KW; N/A 1-7/8 in N/A 1/2X1/4 in N/A 26,100 in·lb2,949 N·m N/A 5500 rpm N/A 2.44 in N/A 3.29 in83.5 mm N/A
697904335576 N/A FCX-3-HUB-1-9/16-3/8X3/16KW; N/A 1-9/16 in N/A 3/8x3/16 in N/A N/A 4000 rpm N/A 3.59 in N/A 5.88 in149.4 mm N/A
697904334456 N/A FCX-2.5-HUB-2-1/16-1/2X1/4KW; N/A 2-5/16 in N/A 1/2X1/4 in N/A 9005 N·m N/A 4400 rpm N/A 3.03 in N/A 4.97 in126.4 mm N/A
697904334463 N/A FCX-2.5-HUB-2-1/2-5/8X5/16KW; N/A 2-5/8 in N/A 5/8X5/16 in N/A 9005 N·m N/A 4400 rpm N/A 3.03 in N/A 4.97 in126.4 mm N/A
697904334470 N/A FCX-2.5-HUB-2-1/4-1/2X1/4KW; N/A 2-7/16 in N/A 1/2X1/4 in N/A 9005 N·m N/A 4400 rpm N/A 3.03 in N/A 4.97 in126.4 mm N/A
697904333206 N/A FCX-2-HUB-2-1/8-1/2X1/4KW; N/A 2-1/8 in N/A 1/2X1/4 in N/A 26,100 in·lb2,949 N·m N/A 5500 rpm N/A 2.44 in N/A 3.29 in83.5 mm N/A
697904334494 N/A FCX-2.5-HUB-2-11/16-5/8X5/16KW; N/A 2-9/16 in N/A 5/8X5/16 in N/A 9005 N·m N/A 4400 rpm N/A 3.03 in N/A 4.97 in126.4 mm N/A
697904335644 N/A FCX-3-HUB-2-13/16-3/4X3/8KW; N/A 2-13/16 in N/A 3/4X3/8 in N/A N/A 4000 rpm N/A 3.59 in N/A 5.88 in149.4 mm N/A
697904335668 N/A FCX-3-HUB-2-3/16-1/2X1/4KW; N/A 2-3/16 in N/A 1/2X1/4 in N/A N/A 4000 rpm N/A 3.59 in N/A 5.88 in149.4 mm N/A
697904336955 N/A FCX-3.5-HUB-2-3/4-5/8X5/16KW; N/A 2-3/4 in N/A 5/8X5/16 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
697904336979 N/A FCX-3.5-HUB-2-5/16-5/8X5/16KW; N/A 2-5/16 in N/A 5/8X5/16 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
697904338331 N/A FCX-4-HUB-2-5/8-5/8X5/16KW; N/A 2-5/8 in N/A 5/8X5/16 in N/A N/A 3000 rpm N/A 4.75 in N/A 8.1 in205.7 mm N/A
697904334593 N/A FCX-2.5-HUB-2-9/16-5/8X5/16KW; N/A 3-5/16 in N/A 5/8X5/16 in N/A 9005 N·m N/A 4400 rpm N/A 3.03 in N/A 4.97 in126.4 mm N/A
697904339758 N/A FCX-4.5-HUB-3"-3/4X3/8KW; N/A 3-7/16 in N/A 3/4X3/8 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
697904337037 N/A FCX-3.5-HUB-3-1/16-3/4X3/8KW; N/A 3-1/16 in N/A 3/4X3/8 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
697904335767 N/A FCX-3-HUB-3-1/2-7/8X7/16KW; N/A 3-1/2 in N/A 7/8X7/16 in N/A N/A 4000 rpm N/A 3.59 in N/A 5.88 in149.4 mm N/A
697904334630 N/A FCX-2.5-HUB-3-1/4-3/4X3/8KW; N/A 4-1/16 in N/A 3/4X3/8 in N/A 9005 N·m N/A 4400 rpm N/A 3.03 in N/A 4.97 in126.4 mm N/A
697904339789 N/A FCX-4.5-HUB-3-1/4-3/4X3/8KW; N/A 4-1/2 in N/A 3/4X3/8 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
697904337068 N/A FCX-3.5-HUB-3-1/8-3/4X3/8KW; N/A 3-1/8 in N/A 3/4X3/8 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
Unit of Measure
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