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FA Type (Alloy Steel) Flex Sleeves (with Seal)

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).
Unit of Measure

Specifications

Description 

 N/A FA-3.5S-SLEEVE-W/SEAL

Hub Style

 N/A Shrouded Bolt

Type

 N/A Sleeves

Material

 N/A Alloy Steel

Color

 N/A Metallic

Style

 N/A Alloy Steel Shrouded Bolt Sleeve

Application

 N/A Driver and Driven

Weight

 N/A 24.00 lb

Complete Coupling Weight

 N/A 130.00 lb

Dimensional Data

Size 

 N/A 3 1/2 in

Max. Bore (Dimensions ID1/ID2)

 N/A 4.882 in124 mm

Length thru Bore

 N/A 4.190 in106.43 mm

Distance between Shaft Ends (Dimension BSE)

 N/A 0.25 in6.35 mm

Dimension AD

 N/A 9.380 in238.25 mm

Dimension D

 N/A 7.910 in200.91 mm

Dimension FD

 N/A 11.00 in279.40 mm

Cubic inches

 N/A 506.99000 in³

Performance Data

Max. Speed (Unbalanced)

 N/A 3500 rpm

Max. Speed (Balanced)

 N/A 5250 rpm

Nominal Torque

 N/A 177000 in·lb

Max. Angular Misalignment (per Gear Mesh)

 N/A 1.50 º

Parallel Misalignment

 N/A 0.130 in

Features

Features 

 N/A
  • 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

Notes

Notes 

 N/A
  • 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.
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