The Timken Company
The Timken Company
4500 Mt Pleasant St. NW
N. Canton, OH 44720
Phone: (234) 262-3000
E-Mail: CustomerCAD@timken.com • Web site: www.timken.com
Print Back
    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.
Features
  • 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
Grid Coupling Hubs - Inch Bore / Keyway, Horizontal & Vertical Cover Style
Grid Coupling Hubs - Inch Bore / Keyway, Horizontal & Vertical Cover Style-2
Unit of Measure
Items Grid Coupling Hubs - Inch Bore / Keyway, Horizontal & Vertical Cover Style
69790405462
Grid Coupling Hub w/ Keyway 		Grid Coupling Hubs - Inch Bore / Keyway, Horizontal & Vertical Cover Style
69790405463
Grid Coupling Hub w/ Keyway 		Grid Coupling Hubs - Inch Bore / Keyway, Horizontal & Vertical Cover Style
69790405458
Grid Coupling Hub w/ Keyway 		Grid Coupling Hubs - Inch Bore / Keyway, Horizontal & Vertical Cover Style
69790405460
Grid Coupling Hub w/ Keyway 		Grid Coupling Hubs - Inch Bore / Keyway, Horizontal & Vertical Cover Style
69790405459
Grid Coupling Hub w/ Keyway
Description  N/A 1020-HUB-1"-1/4X1/8KW N/A 1020-HUB-1-1/8-1/4X1/8KW N/A 1020-HUB-1/2-1/8X1/16KW N/A 1020-HUB-3/4-3/16X3/32KW N/A 1020-HUB-5/8-3/16X3/32KW
Bore Size  N/A 1 in N/A 1 1/8 in N/A 1/2 in N/A 3/4 in N/A 5/8 in
Type N/A Grid Coupling
Hub Material N/A 1045 Steel
Set Screw Style Coupling Size (Dimension T) N/A 8-32
Set Screw Style Coupling Location Size (Dimension SL) N/A 0.500 in12.70 mm
Keyway Size (W x D) N/A 1/4 x 1/8 in N/A 1/4 x 1/8 in N/A 1/8 x 1/16 in N/A 3/16 x 3/32 in N/A 3/16 x 3/32 in
Length thru Bore N/A 1.880 in47.75 mm
Style N/A Bored
Overall Length N/A 3.880 in98.50 mm
Outside Diameter (Horiontal Style Cover) N/A 4.000 in101.60 mm
Outside Diameter (Vertical Style Cover) N/A 4.380 in111.30 mm
Color N/A Gray/Metallic
Nominal Torque N/A 460.00 in·lb
Bore Type N/A Finished Bore and Keyway
Min. Bore (Dimensions ID1/ID2) N/A 0.500 in12 mm
Max. Bore (Dimensions ID1/ID2) N/A 1.125 in28.00 mm
Max. Speed (Horizontal Style Cover) N/A 4500.00 rpm
Max. Speed (Vertical Style Cover) N/A 6000.00 rpm
Dimension FD N/A 2.500 in63.50 mm
Dimension FL N/A 0.380 in9.65 mm
Dimension HD N/A 1.560 in39.70 mm
Dimension G1 N/A 0.118 in3.00 mm
Dimension L (Horizontal Style Cover) N/A 2.620 in66.55 mm
Dimension L (Vertical Style Cover) N/A 0.960 in24.38 mm
Max. Parallel Misalignment at Installation (Dimension P) N/A 0.0060 in
Max. Parallel Misalignment during Operation (Dimension P) N/A 0.012 in
Dimension R N/A 1.880 in47.75 mm
Dimension SL N/A 0.500 in12.70 mm
Distance between Shaft Ends (Dimension G) - Normal Gap N/A 0.118 in3.00 mm
Max. Angular Misalignment at Installation (X-Y) N/A 0.002 in
Max. Angular Misalignment during Operation (X-Y) N/A 0.009 in
Moment of Inertia (Horizontal Style Cover) WR N/A
Moment of Inertia (Vertical Style Cover) WR N/A
Lovejoy® Grid Coupling Size N/A 1020
Falk™ Steelflex® Horizontal Cover Style Coupling Part Number N/A 1020T10
Morse® / Browning® Grid-Flex Horizontal Cover Style Coupling Part Number N/A GF2020H
Dodge® Grid-Lign® Horizontal Cover Style Coupling Part Number N/A 1020T10
Kop-Flex® / Kop-Grid® Horizontal Cover Style Coupling Part Number N/A 1020H
Falk™ Steelflex® Vertical Cover Style Coupling Part Number N/A 1020T20
Morse® / Browning® Grid-Flex Vertical Cover Style Coupling Part Number N/A GF2020V
Dodge® Grid-Lign® Vertical Cover Style Coupling Part Number N/A 1020T20
Kop-Flex® / Kop-Grid® Vertical Cover Style Coupling Part Number N/A 1020V
Weight N/A 0.91 lb N/A 0.79 lb N/A 1.15 lb N/A 1.09 lb N/A 1.12 lb
Weight - Solid N/A
Cubic inches N/A 4.57517 in³