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Item # 69790411805, FMM Type Mill Universal Hubs with Keyway - Inch (Imperial) Bore



FMM Type Mill Universal Hubs with Keyway - Inch (Imperial) 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).






Specifications  · Dimensional Data  · Performance Data  · Features  · Notes

Specifications

Description 

FMM 4.5 HUB 3-5/8 7/8X7/16KW

Hub Style

Exposed Bolt

Type

Gear Coupling Hubs

Hub Material

AISI 1045

Style

Bored

Color

Metallic

Coupling Type

Gear

Weight

110.00 lb

Complete Coupling Weight

310.00 lb


Dimensional Data

Bore Size 

3 5/8 in

Size

4 1/2

Set Screw Style Coupling Size (Dimension T)

No Setscrew

Keyway Size (W x D)

7/8 x 7/16 in

Length Through Bore for Universal Hub (LTB1)

9.00 in

Overall Length

14.630 in
371.60
mm

Max. Bore (Dimensions ID1/ID2)

6.000 in
165
mm

Dimension D

10.380 in
263.65
mm

Dimension FD

13.63 in
346.20
mm

Dimension HD

8.500 in
215.90
mm

Distance between Shaft Ends (Dimension BSE)

0.310 in
7.87
mm

Max. Length of Universal Hub (Dimension LTB1)

9.000 in
228.60
mm

Cubic inches

650.25000 in³


Performance Data

Nominal Torque

302400 in·lb

Max. Speed (Unbalanced)

2700 rpm

Max. Speed (Balanced)

4050.00 rpm

Parallel Misalignment

0.175 in

Max. Angular Misalignment

1.50º per Gear Mesh


Features

Features 

  • 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 supplied to customer specifications with straight or tapered bores


Notes

Notes 

  • LTB1 Dimensions are the maximum lengths of Universal Hubs kept in stock and altered to customer specifications. Longer length hubs are made to order.
  • 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 6.
  • 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 ANSI / AGMA 9002-B04.
  • For metric bore and keyway tolerances, consult Lovejoy Engineering Section.


 DOWNLOADS 

Gear Coupling Product Catalog
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F & FA Type Installation Instructions
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