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FA Type (Alloy Steel) Flex Hubs with Keyway - Inch (Imperial) Bore

For use with FA (Alloy Steel) Flex-Flex couplings.

The FA Type coupling provides a higher nominal torque value than standard F Type couplings, and consists of two FA Type flex hubs, two FA Type sleeves (with seals) 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 FA Type has a max angular misalignment of 3.0 degrees (1.5 degrees per gear mesh).

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Bore Size  (in)

Keyway Size  (in)

Part Number

Description 

Bore Size 

Keyway Size 

Nominal Torque

Max. Speed (Unbalanced)

Length Through Bore (LTB)

Dimension FD

Dimension HD

N/A FA-3.5-HUB-3-5/8-7/8X7/16KW N/A 3 5/8 in N/A 7/8 x 7/16 in N/A 177000 in·lb20000 N·m N/A 3500 rpm N/A 4.190 in106.43 mm N/A 11.00 in279.40 mm N/A 6.5 in165.10 mm
N/A FA-5.5-HUB-7"-1-3/4X3/4KW N/A 7 in N/A 1 3/4 x 3/4 in N/A 670700 in·lb75790 N·m N/A 2200 rpm N/A 6.910 in175.51 mm N/A 16.75 in425.45 mm N/A 10.50 in266.70 mm
N/A FA-6-HUB-8"-2"X3/4KW N/A 8 in N/A 2 x 3/4 in N/A 877100 in·lb99110 N·m N/A 2100 rpm N/A 7.41 in188.21 mm N/A 18.00 in457.20 mm N/A 11.50 in292.10 mm
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