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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.
Unit of Measure

Notes

Disclaimer

 N/A Lovejoy: CAD Models are accurate envelope dimensions only. Features such as bore size and keyway are not rendered or are only representative. Contact Lovejoy Technical Support or refer to product catalogs for details.

Specifications

Description 

 N/A F 3.5 HUB 3" 3/4X3/8KW

Type

 N/A Gear Coupling Hubs

Hub Material

 N/A AISI 1045

Style

 N/A Bored

Color

 N/A Metallic

Coupling Type

 N/A Gear

Weight

 N/A 36.80 lb

Dimensional Data

Bore Size 

 N/A 3 in

Size

 N/A 3 1/2

Set Screw Style Coupling Size (Dimension T)

 N/A No Setscrew

Keyway Size (W x D)

 N/A 3/4 x 3/8 in

Length thru Bore

 N/A 4.190 in

Depth

 N/A 4.190 in106.43 mm

Max. Bore (Dimensions ID1/ID2)

 N/A 4.625 in125 mm

Dimension HD

 N/A 6.5 in165.10 mm

Cubic inches

 N/A 177.02750 in³

Performance Data

Nominal Torque

 N/A 151200 in·lb17100 N·m

Max Speed (Unbalanced)

 N/A 3500 rpm
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