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LoveJoy 69790403868 FA 4.5 HUB RSB

BRAND: LoveJoy | MODEL: 69790403868 | CONDITION: NEW | SKU: 1796006
LoveJoy 69790403868 FA 4.5 HUB RSB

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Weight: 83.00 lbs UOM: EA

Additional Description



FA Type (Alloy Steel) Flex Hubs - Rough Stock 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).

Description FA 4.5 HUB RSB
Hub StyleExposed Bolt
TypeGear Coupling Hubs
Hub MaterialAlloy Steel
Bore TypeRough Stock Bore
Coupling TypeGear
Weight83.00 lb
Complete Coupling Weight250.00 lb
Dimensional Data
Size4 1/2
Set Screw Style Coupling Size (Dimension T)No Setscrew
Height8.500 in
Width8.500 in
Length Through Bore (LTB)5.310 in134.87 mm
Overal Coupling Length (OAL)10.94 in277.88 mm
Max. Bore (Dimensions ID1/ID2)6.000 in167 mm
Dimension AD11.500 in292.10 mm
Dimension D10.380 in263.65 mm
Dimension HD8.500 in215.90 mm
Distance between Shaft Ends (Dimension BSE)0.310 in7.87 mm
Cubic inches383.64750 in³
Performance Data
Nominal Torque354000 in·lb40000 N·m
Max. Speed (Unbalanced)2700 rpm
Max. Speed (Balanced)4050.00 rpm
Parallel Misalignment0.175 in
Max. Angular Misalignment1.50º per Gear Mesh
  • Molded seals maintain proper lubricant retention during misalignment conditions
  • AISI 4140 Alloy Steel Construction
  • 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
  • Exposed Bolt Design is standard.
  • Shrouded Bolt Design available upon request for sizes 1 through 5.5.
  • Puller Holes are standard on sizes 4 through 7.
  • Puller Holes are available for sizes 1 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 AGMA 9002-B04.
  • For metric bore and keyway tolerances, consult Lovejoy Engineering Section.