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FMM 3 HUB 603/604 & 803/804 MF

BRAND: LoveJoy | MODEL: 69790492885 | CONDITION: NEW | SKU: 1799249
FMM 3 HUB 603/604 & 803/804 MF

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Actual product may vary
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Weight: 27.50 lbs UOM: EA

Additional Description



FMM Type Mill Universal Hubs - Finished (AISE Frame) Bore

The FMM Type coupling consists of one universal hub (FMM Mill Type), one standard F Type flex hub, two standard F Type flex sleeves, and one accessory kit. This coupling is supplied with exposed bolts as standard, with shrouded bolts are available upon request through size 5.5.

The FMM Type Mill Universal hub accommodates AISE Mill Motor frame sizes (with the two sleeves and second hub being standard F Type).

Description FMM 3 HUB 603/604 & 803/804 MF
Hub StyleExposed Bolt
TypeGear Coupling Hubs
Hub MaterialAISI 1045
StyleMill Motor Hub Bored
Coupling TypeGear
AISE Motor Frame Size603/604 & 803/804
Weight27.50 lb
Dimensional Data
Bore Size (Dimension TB)1.9980 to 1.9990 in
Set Screw Style Coupling Size (Dimension T)No Setscrew
Keyway Size (W x D)1/2 x 1/4 in
Max. Bore (Dimensions ID1/ID2)4.000 in107 mm
Dimension FD9.44 in239.78 mm
Dimension HD5.630 in143.00 mm
Cubic inches110.93915 in³
Performance Data
Nominal Torque94500 in·lb
Max. Speed (Unbalanced)4000 rpm
Max. Speed (Balanced)6000.00 rpm
  • Patented Vari-Crown® tooth form for long life
  • Standard 20° pressure angle
  • Heat treated bolts for greater strength
  • Corrosion resistant bolts and nuts for ease of maintenance
  • Provides parallel, angular misalignment and end float
  • Flex Half coupling interchangeable with industry standards
  • Long Universal Hub used for AISE Motor Frames
  • Counterbore is required for hub size 1.5.
  • Bore taper is 1-1/4 inch per foot on diameter.
  • Exposed Bolt Design is standard.
  • Shrouded Bolt Design available upon request for sizes 1.5 through 5.5.
  • Puller Holes are standard on sizes 4 through 6.
  • Puller Holes are available for sizes 1.5 through 3.5 at an additional charge.
  • Interference bores with no set screws are standard unless otherwise specified.
  • Inch bore and keyway tolerances conform to ANSI / AGMA 9002-B04.
  • For metric bore and keyway tolerances, consult Lovejoy Engineering Section.1/4 inch hub standoff.