F Type Flex Hubs with Keyway - Metric Bore

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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Item #

Description 

Bore Size

Keyway Size (W x D)

Nominal Torque

Max Speed (Unbalanced)

Length thru Bore

Dimension HD

N/A F 1 HUB 35MM J7 10X3.3MM KW N/A 35.00 mm N/A 10 x 3.3 mm N/A 850 N·m7600 in·lb N/A 6000 rpm N/A 1.690 in N/A 2.310 in58.67 mm
N/A F 1.5 HUB 32MM 10X3.3MM KW N/A 32.00 mm N/A 10 x 3.3 mm N/A 2140 N·m18900 in·lb N/A 5500 rpm N/A 1.940 in N/A 3.000 in76.20 mm
N/A F 2 HUB 32MM 10X3.3MM KW N/A 32.00 mm N/A 10 x 3.3 mm N/A 3560 N·m31500 in·lb N/A 5000 rpm N/A 2.440 in N/A 4.000 in101.60 mm
N/A F 2.5 HUB 65MM *5/8X5/16KW N/A 65.00 mm N/A 5/8 x 5/16 mm N/A 6410 N·m56700 in·lb N/A 4400 rpm N/A 3.030 in N/A 4.630 in117.60 mm
N/A F 3 HUB 45MM 14X3.8MM KW N/A 45.00 mm N/A 14 x 3.8 mm N/A 10700 N·m94500 in·lb N/A 4000 rpm N/A 3.590 in N/A 5.630 in143.00 mm
N/A F 3 HUB 70.000/70.030MM KW N/A 70.00 mm N/A 20 x 4.9 mm N/A 10700 N·m94500 in·lb N/A 4000 rpm N/A 3.590 in N/A 5.630 in143.00 mm
N/A F 4 HUB 135MM S7 36X8.4MM KW N/A 135.00 mm N/A 36 x 8.4 mm N/A 24900 N·m220500 in·lb N/A 3000 rpm N/A 4.750 in N/A 7.500 in190.50 mm
N/A F 4.5 HUB 110MM P7 28X6.4MM KW N/A 110.00 mm N/A 28 x 6.4 mm N/A 34200 N·m302400 in·lb N/A 2700 rpm N/A 6.030 in N/A 8.500 in215.90 mm
N/A F 4.5 HUB 137.9MM 36X8.4MM KW N/A 137.90 mm N/A 36 x 8.4 mm N/A 34200 N·m302400 in·lb N/A 2700 rpm N/A 5.310 in N/A 8.500 in215.90 mm
N/A F 4.5 HUB 150MM 36X8.4MM KW N/A 150.00 mm N/A 36 x 8.4 mm N/A 34200 N·m302400 in·lb N/A 2700 rpm N/A 5.310 in N/A 8.500 in215.90 mm
N/A F 4.5 HUB 150MM S7 36X8.4MMKW N/A 150.00 mm N/A 36 x 8.4 mm N/A 34200 N·m302400 in·lb N/A 2700 rpm N/A 5.310 in N/A 8.500 in215.90 mm
N/A F 4.5 HUB 160MM 40X9.4MM KW N/A 160.00 mm N/A 40 x 9.4 mm N/A 34200 N·m302400 in·lb N/A 2700 rpm N/A 5.310 in N/A 8.500 in215.90 mm
N/A F 5 HUB 165MM 40X9.4MM KW N/A 165 mm N/A 40 x 9.4 mm N/A 49100 N·m434700 in·lb N/A 2500 rpm N/A 6.030 in N/A 9.500 in241.30 mm
N/A F 5.5 HUB 120MM P7 32X7.4MM KW N/A 120.00 mm N/A 32 x 7.4 mm N/A 64800 N·m573300 in·lb N/A 2200 rpm N/A 6.910 in N/A 10.50 in266.70 mm
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