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  • F Type Gear Coupling
  • FFR Type Gear Coupling
  • FFR Type Gear Coupling Diagram
  • F Type Universal Rigid Hubs w/ Center - Imperial-2
F Type Flex Hubs with Keyway - Inch (Imperial) Bores

For use with F (Flex-Flex) or FFR (Flex-Rigid) couplings.

The F Type coupling consists of two flex hubs, two sleeves and one accessory kit. Exposed bolts (E) are the standard design for this coupling, though shrouded bolt (S) designs are available upon request through size 5.5. The F Type has a max angular misalignment of 3.0 degrees (1.5 degrees per gear mesh).

The FFR Type coupling consists of one flex hub, one rigid hub, one sleeve, and one accessory kit. Exposed bolts (E) are the standard design for this coupling, though shrouded bolt (S) designs are available upon request through size 5.5. The FFR Type has a max angular misalignment of 1.5 degrees (1.5 degrees per gear mesh).

For larger torques, consider the FHD Type gear coupling in sizes 10 through 30.

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Bore Size  (in)

Keyway Size  (in)

Part Number

Description 

Bore Size 

Keyway Size 

Nominal Torque

Max Speed (Unbalanced)

Length thru Bore

Dimension HD

CAD

N/A F-1-HUB-1"-1/4X1/8KW N/A 1 in N/A 1/4 x 1/8 in N/A 7600 in·lb850 N·m N/A 6000 rpm N/A 1.690 in N/A 2.310 in58.67 mm N/A
N/A F-1-HUB-1.125/1.126-1/4X1/8KW-SS N/A 1 1/8 in N/A 1/4 x 1/8 in N/A 7600 in·lb850 N·m N/A 6000 rpm N/A 1.690 in N/A 2.310 in58.67 mm N/A
N/A F-1-HUB-1.250/1.251-1/4X1/8KW N/A 1 1/4 in N/A 1/4 x 1/8 in N/A 7600 in·lb850 N·m N/A 6000 rpm N/A 1.690 in N/A 2.310 in58.67 mm N/A
N/A F-1-HUB-1.375/1.376-5/16X5/32KW N/A 1 3/8 in N/A 5/16 x 5/32 in N/A 7600 in·lb850 N·m N/A 6000 rpm N/A 1.690 in N/A 2.310 in58.67 mm N/A
N/A F-1-HUB-1.625/1.626-3/8X3/16KW N/A 1 5/8 in N/A 3/8 x 3/16 in N/A 7600 in·lb850 N·m N/A 6000 rpm N/A 1.690 in N/A 2.310 in58.67 mm N/A
N/A F-1-HUB-1-1/2-3/8X3/16KW N/A 1 1/2 in N/A 3/8 x 3/16 in N/A 7600 in·lb850 N·m N/A 6000 rpm N/A 1.690 in N/A 2.310 in58.67 mm N/A
N/A F-1-HUB-1-1/4-1/4X1/8KW N/A 1 1/4 in N/A 1/4 x 1/8 in N/A 7600 in·lb850 N·m N/A 6000 rpm N/A 1.690 in N/A 2.310 in58.67 mm N/A
N/A F-1-HUB-1-1/8-1/4X1/8KW N/A 1 1/8 in N/A 1/4 x 1/8 in N/A 7600 in·lb850 N·m N/A 6000 rpm N/A 1.690 in N/A 2.310 in58.67 mm N/A
N/A F-1-HUB-1-3/8-5/16X5/32KW N/A 1 3/8 in N/A 5/16 x 5/32 in N/A 7600 in·lb850 N·m N/A 6000 rpm N/A 1.690 in N/A 2.310 in58.67 mm N/A
N/A F-1-HUB-1-5/8-3/8X3/16KW N/A 1 5/8 in N/A 3/8 x 3/16 in N/A 7600 in·lb850 N·m N/A 6000 rpm N/A 1.690 in N/A 2.310 in58.67 mm N/A
N/A F-1-HUB-3/4-3/16X3/32KW N/A 3/4 in N/A 3/16 x 3/32 in N/A 7600 in·lb850 N·m N/A 6000 rpm N/A 1.690 in N/A 2.310 in58.67 mm N/A
N/A F-1-HUB-7/8-3/16X3/32KW N/A 7/8 in N/A 3/16 x 3/32 in N/A 7600 in·lb850 N·m N/A 6000 rpm N/A 1.690 in N/A 2.310 in58.67 mm N/A
N/A F-1-HUB-14T 12/24DP-SAE C N/A 1 in N/A 1/4 x 1/8 in N/A 7600 in·lb850 N·m N/A 6000 rpm N/A 1.690 in N/A 2.310 in58.67 mm N/A
N/A F-1.5-HUB-1.125/1.126-1/4X1/8KW N/A 1 1/8 in N/A 1/4 x 1/8 in N/A 18900 in·lb2140 N·m N/A 5500 rpm N/A 1.940 in N/A 3.000 in76.20 mm N/A
N/A F-1.5-HUB-1.250/1.251-1/4X1/8KW N/A 1 1/4 in N/A 1/4 x 1/8 in N/A 18900 in·lb2140 N·m N/A 5500 rpm N/A 1.940 in N/A 3.000 in76.20 mm N/A
N/A F-1.5-HUB-1.8735/1.8740-1/2X1/4KW-SS N/A 1 7/8 in N/A 1/2 x 1/4 in N/A 18900 in·lb2140 N·m N/A 5500 rpm N/A 1.940 in N/A 3.000 in76.20 mm N/A
N/A F-1.5-HUB-1-1/2-3/8X3/16KW N/A 1 1/2 in N/A 3/8 x 3/16 in N/A 18900 in·lb2140 N·m N/A 5500 rpm N/A 1.940 in N/A 3.000 in76.20 mm N/A
N/A F-1.5-HUB-1-1/4-1/4X1/8KW N/A 1 1/4 in N/A 1/4 x 1/8 in N/A 18900 in·lb2140 N·m N/A 5500 rpm N/A 1.940 in N/A 3.000 in76.20 mm N/A
N/A F-1.5-HUB-1-1/8-1/4X1/8KW N/A 1 1/8 in N/A 1/4 x 1/8 in N/A 18900 in·lb2140 N·m N/A 5500 rpm N/A 1.940 in N/A 3.000 in76.20 mm N/A
N/A F-1.5-HUB-1-3/4-3/8X3/16KW N/A 1 3/4 in N/A 3/8 x 3/16 in N/A 18900 in·lb2140 N·m N/A 5500 rpm N/A 1.940 in N/A 3.000 in76.20 mm N/A
N/A F-1.5-HUB-1-3/8-5/16X5/32KW N/A 1 3/8 in N/A 5/16 x 5/32 in N/A 18900 in·lb2140 N·m N/A 5500 rpm N/A 1.940 in N/A 3.000 in76.20 mm N/A
N/A F-1.5-HUB-1-3/8-3/8X3/16KW N/A 1 3/8 in N/A 3/8 x 3/16 in N/A 18900 in·lb2140 N·m N/A 5500 rpm N/A 1.940 in N/A 3.000 in76.20 mm N/A
N/A F-1.5-HUB-1-5/8-3/8X3/16KW N/A 1 5/8 in N/A 3/8 x 3/16 in N/A 18900 in·lb2140 N·m N/A 5500 rpm N/A 1.940 in N/A 3.000 in76.20 mm N/A
N/A F-1.5-HUB-1-7/8-1/2X1/4KW N/A 1 7/8 in N/A 1/2 x 1/4 in N/A 18900 in·lb2140 N·m N/A 5500 rpm N/A 1.940 in N/A 3.000 in76.20 mm N/A
N/A F-1.5-HUB-2"-1/2X1/4KW N/A 2 in N/A 1/2 x 1/4 in N/A 18900 in·lb2140 N·m N/A 5500 rpm N/A 1.940 in N/A 3.000 in76.20 mm N/A
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