F Type Rigid Hubs, Metric Bore & Keyway - Exposed and Shrouded Bolt Designs

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

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).

The FRR Type coupling consists of two rigid hubs and one accessory kit. Exposed bolts (E) are also the standard design for this coupling, though shrouded bolt (S) designs are available upon request through size 5.5. The FRR Type coupling does not accommodate for any angular misalignment.

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

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Item #

Description 

Bore Size

Keyway Size (W x D)

Nominal Torque

Max Speed (Unbalanced)

Length thru Bore

Dimension FD

Dimension HD

N/A F 4E HUB RGD 120MM N7 KW N/A 120.00 mm N/A 32 x 7.4 mm N/A 24900 N·m220500 in·lb N/A 3000 rpm N/A 4.440 mm112.78 in N/A 12.50 in317.50 mm N/A 9.250 in9.25 mm
N/A F 5E HUB RGD 175MM 45X10.4MMK N/A 175.00 mm N/A 45 x 10.4 mm N/A 49100 N·m434700 in·lb N/A 2500 rpm N/A 5.690 mm144.53 in N/A 15.31 in388.87 mm N/A 11.560 in11.56 mm
N/A F 6E HUB RGD 180MM M7 KW N/A 180 mm N/A 45 x 10.4 mm N/A 84700 N·m749700 in·lb N/A 2100 rpm N/A 7.41 mm188.21 in N/A 18.00 in457.20 mm N/A 14.000 in14.00 mm
N/A F 5E HUB RGD 200MM 45X10.4MMK N/A 200 mm N/A 45 x 10.4 mm N/A 49100 N·m434700 in·lb N/A 2500 rpm N/A 5.690 mm144.53 in N/A 15.31 in388.87 mm N/A 11.560 in11.56 mm
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