View cart
Add products to your shopping cart

Image for Illustration purposes only. Actual product may vary

  • BRAND:
  • SKU: 1800326
  • MODEL: 69790405539

1110 HUB 3.8720/3.8735 KW&PH

$406.89 Each


  • Free shipping on orders over $20
  • Typically ships in: 1 day
  • Weight: 38.9 lb

Select Quantity

Additional Description

    Lovejoy is pleased to be able to provide quality grid couplings covering a large number of industry standard sizes and lengths. The Lovejoy grid style coupling has proven itself in performance and popularity over a wide range of applications. Lovejoy’s grid style coupling design has demonstrated its ability to dampen vibration by as much as 30% and can cushion shock loads that could cause damage to both the driving and driven equipment. The tapered grid spring design absorbs impact energy by spreading the energy out over the full length of the grid spring thus reducing the magnitude of the torque spikes. The Lovejoy design uses a curved hub tooth profile which creates a progressive contact with the flexible grid spring as the application torque increases. This feature provides a more effective and efficient transmission of power in properly aligned couplings. Lovejoy’s versatile design of industry standard hubs and grid springs for both horizontal and vertical cover styles allow Lovejoy couplings to be interchangeable with other industry standard grid couplings and components. Proper grid coupling installation and maintenance can add to a longer coupling life. Grid spring replacement is simple and can be performed at a fraction of the cost and time of a complete coupling.
    The Lovejoy Grid coupling is an ideal coupling for applications where excellent performance is desired and additional requirements for vibration dampening may exist. The Horizontal Split Cover design is recommended in applications where there may be some constraints on the diameter of the coupling. The vertical design is recommended for applications where higher speed is one of the requirements.
  • Designed for ease of maintenance and grid spring replacement
  • High tensile grid springs ensure superior coupling performance and longer coupling life
  • Split covers allow for easy access to grid springs
  • Interchangeable with industry standard grid couplings
Description 1110 HUB 3.8720/3.8735 KW&PH
TypeGrid Coupling
Hub Material1045 Steel
Bore TypeFinished Bore and Keyway
Weight38.90 lb
Dimensional Data
Bore Size 3 7/8 in
Set Screw Style Coupling Size (Dimension T)No Setscrew
Keyway Size (W x D)1 x 1/2 in
Length thru Bore5.00 in127.00 mm
Overall Length10.190 in258.70 mm
Outside Diameter (Horiontal Style Cover)10.630 in270.00 mm
Outside Diameter (Vertical Style Cover)11.250 in285.80 mm
Min. Bore (Dimensions ID1/ID2)1.625 in41.00 mm
Max. Bore (Dimensions ID1/ID2)4.500 in117.00 mm
Dimension FD8.500 in215.90 mm
Dimension FL0.630 in16.00 mm
Dimension HD6.310 in160.30 mm
Dimension G10.177 in4.50 mm
Dimension L (Horizontal Style Cover)6.360 in161.54 mm
Dimension L (Vertical Style Cover)2.500 in63.50 mm
Dimension R4.880 in123.95 mm
Distance between Shaft Ends (Dimension G) - Normal Gap0.177 in4.50 mm
Cubic inches199.08050 in³
Performance Data
Nominal Torque82500.00 in·lb
Max. Speed (Horizontal Style Cover)2250.00 rpm
Max. Speed (Vertical Style Cover)3000.00 rpm
Max. Parallel Misalignment at Installation (Dimension P)0.0100 in
Max. Parallel Misalignment during Operation (Dimension P)0.020 in
Max. Angular Misalignment at Installation (X-Y)0.009 in
Max. Angular Misalignment during Operation (X-Y)0.035 in
Coupling Part Numbers
Lovejoy® Grid Coupling Size1110
Falk™ Steelflex® Horizontal Cover Style Coupling Part Number1110T10
Morse® / Browning® Grid-Flex Horizontal Cover Style Coupling Part NumberGF2110H
Dodge® Grid-Lign® Horizontal Cover Style Coupling Part Number1110T10
Kop-Flex® / Kop-Grid® Horizontal Cover Style Coupling Part Number1110H
Falk™ Steelflex® Vertical Cover Style Coupling Part Number1110T20
Morse® / Browning® Grid-Flex Vertical Cover Style Coupling Part NumberGF2110V
Dodge® Grid-Lign® Vertical Cover Style Coupling Part Number1110T20
Kop-Flex® / Kop-Grid® Vertical Cover Style Coupling Part Number1110V
  • High tensile, shot-peened alloy steel grid springs and precision machined hubs ensure superior coupling performance and long life.
  • Lovejoy’s grid couplings with tapered grids are designed to be interchangeable with other industry standard grid couplings with both horizontal and vertical grid covers.
  • Lovejoy grid couplings are designed for ease of installation and maintenance reducing labor and downtime costs.
  • The torsional flexibility and resilience of Lovejoy grid couplings helps reduce vibration and cushions shock and impact loads.
  • Cover fasteners can be provided in either Inch or Metric sizes.
  • Excellent for use in applications where the equipment is close coupled or spaced apart requiring a spacer style coupling arrangement.
  • Stock spacer designs are available or requests for custom spacer lengths can be addressed by Lovejoy engineering.
  • Size 1020 thru 1090 hubs are provided with clearance fit bores and 2 set screws at 90°.
  • Size 1100 thru 1200 hubs are provided with interference fit bores and no set screws.
Lovejoy machines Inch bores and keyways to meet tolerances define in the ANSI/AGMA 9002-B04 Standard.



OD 10.630 in

Return policy

Item must be unused.

Item must be in it's original package.

Restocking, shipping and handling fees may applied to any return with this manufacturer.

For more information please consult


Product's availability

State of California Proposition 65 Product Warning