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Part Number 69790491099, FLA Type (Flex-Flex All-Metal Labyrinth Seal) Flex Hubs - Rough Stock Bore

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FLA Type (Flex-Flex All-Metal Labyrinth Seal) Flex Hubs - Rough Stock Bore

For use with FLA (Flex-Flex All-Metal Labyrinth Seal) and FLAFR (Flex-Rigid All-Metal Labyrinth Seal) couplings.

The FLA Type coupling consists of two special FLA Type flex hubs, two FLA 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 FLA Type has a max angular misalignment of 3.0 degrees (1.5 degrees per gear mesh).

The FLAFR Type coupling consists of one special FLA flex hub, one FA rigid hub, one FLA flex 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 FLAFR Type has a max angular misalignment of 1.5 degrees (1.5 degrees per gear mesh).




Specifications  · Dimensional Data  · Performance Data  · Features  · Notes

Specifications

Description 
FLA-5.5-HUB-RSB

Hub Style
Exposed Bolt

Type
Gear Coupling Hubs

Hub Material
All Metal

Style
Unbored

Color
Metallic

Bore Type
Rough Stock Bore

Coupling Type
Gear

Complete Coupling Weight
435.00 lb

Weight
114.50 lb


Dimensional Data

Size
5 1/2

Length thru Bore
6.910 in
175.51 mm

Overall Length
14.13 in
358.90 mm

Max. Bore (Dimensions ID1/ID2)
3.000 in
76 mm

Dimension D
12.810 in
325.37 mm

Dimension FD
16.75 in
425.45 mm

Dimension HD
8.000 in
203.20 mm

Dimension W
1.880 in
47.75 mm

Center Line to Center Line of Teeth
11.000 in
279.40 mm

Distance between Shaft Ends (Dimension BSE)
0.31 in
7.87 mm

Cubic inches
442.24000 in³


Performance Data

Nominal Torque
732500.00 in·lb

Max. Speed (Unbalanced)
3880.00 rpm

Max. Speed (Balanced)
5820.00 rpm

Parallel Misalignment
0.096 in

Max. Angular Misalignment
1.50º per Gear Mesh


Features

Features 
  • All-Metal Labyrinth Seals
  • 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 
  • Exposed Bolt Design is standard.
  • Shrouded Bolt Design available upon request for sizes 1 through 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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