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
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Item #

Item Name

Description 

Bore Size 

Set Screw Style Coupling Size (Dimension T)

Keyway Size (W x D)

Length thru Bore

Lovejoy® Grid Coupling Size

69790406151 N/A Grid Coupling Hub w/ Keyway N/A 1080 HUB 1-15/16 1/2X1/4KW N/A 1 5/16 in N/A 1/4-20 N/A 1/2 x 1/4 in N/A 3.50 in88.90 mm N/A 1080
69790406149 N/A Grid Coupling Hub w/ Keyway N/A 1080 HUB 1-3/8 5/16X5/32KW N/A 1 3/8 in N/A 1/4-20 N/A 5/16 x 5/32 in N/A 3.50 in88.90 mm N/A 1080
69790406150 N/A Grid Coupling Hub w/ Keyway N/A 1080 HUB 1-5/8 3/8X3/16KW N/A 1 5/8 in N/A 1/4-20 N/A 3/8 x 3/16 in N/A 3.50 in88.90 mm N/A 1080
69790406124 N/A Grid Coupling Hub w/ Keyway N/A 1080 HUB 1-3/4 3/8X3/16KW N/A 1 3/4 in N/A 1/4-20 N/A 3/8 x 3/16 in N/A 3.50 in88.90 mm N/A 1080
69790406125 N/A Grid Coupling Hub w/ Keyway N/A 1080 HUB 1-13/16 1/2X1/4KW N/A 1 13/16 in N/A 1/4-20 N/A 1/2 x 1/4 in N/A 3.50 in88.90 mm N/A 1080
69790406126 N/A Grid Coupling Hub w/ Keyway N/A 1080 HUB 1-7/8 1/2X1/4KW N/A 1 7/8 in N/A 1/4-20 N/A 1/2 x 1/4 in N/A 3.50 in88.90 mm N/A 1080
69790405500 N/A Grid Coupling Hub w/ Keyway N/A 1080 HUB 2" 1/2X1/4KW N/A 2 in N/A 1/4-20 N/A 1/2 x 1/4 in N/A 3.50 in88.90 mm N/A 1080
69790405501 N/A Grid Coupling Hub w/ Keyway N/A 1080 HUB 2-1/8 1/2X1/4KW N/A 2 1/8 in N/A 1/4-20 N/A 1/2 x 1/4 in N/A 3.50 in88.90 mm N/A 1080
69790406152 N/A Grid Coupling Hub w/ Keyway N/A 1080 HUB 2-3/16 1/2X1/4KW N/A 2 3/16 in N/A 1/4-20 N/A 1/2 x 1/4 in N/A 3.50 in88.90 mm N/A 1080
69790405502 N/A Grid Coupling Hub w/ Keyway N/A 1080 HUB 2-1/4 1/2X1/4KW N/A 2 1/4 in N/A 1/4-20 N/A 1/2 x 1/4 in N/A 3.50 in88.90 mm N/A 1080
69790405503 N/A Grid Coupling Hub w/ Keyway N/A 1080 HUB 2-3/8 5/8X5/16KW N/A 2 3/8 in N/A 1/4-20 N/A 5/8 x 5/16 in N/A 3.50 in88.90 mm N/A 1080
69790405504 N/A Grid Coupling Hub w/ Keyway N/A 1080 HUB 2-1/2 5/8X5/16KW N/A 2 1/2 in N/A 1/4-20 N/A 5/8 x 5/16 in N/A 3.50 in88.90 mm N/A 1080
69790405505 N/A Grid Coupling Hub w/ Keyway N/A 1080 HUB 2-5/8 5/8X5/16KW N/A 2 5/8 in N/A 1/4-20 N/A 5/8 x 5/16 in N/A 3.50 in88.90 mm N/A 1080
69790405506 N/A Grid Coupling Hub w/ Keyway N/A 1080 HUB 2-3/4 5/8X5/16KW N/A 2 3/4 in N/A 1/4-20 N/A 5/8 x 5/16 in N/A 3.50 in88.90 mm N/A 1080
69790405507 N/A Grid Coupling Hub w/ Keyway N/A 1080 HUB 2-7/8 3/4X3/8KW N/A 2 7/8 in N/A 1/4-20 N/A 3/4 x 3/8 in N/A 3.50 in88.90 mm N/A 1080
69790406153 N/A Grid Coupling Hub w/ Keyway N/A 1080 HUB 2-15/16 3/4X3/8KW N/A 2 15/16 in N/A 1/4-20 N/A 3/4 x 3/8 in N/A 3.50 in88.90 mm N/A 1080
69790405508 N/A Grid Coupling Hub w/ Keyway N/A 1080 HUB 3" 3/4X3/8KW N/A 3 in N/A 1/4-20 N/A 3/4 x 3/8 in N/A 3.50 in88.90 mm N/A 1080
69790406154 N/A Grid Coupling Hub w/ Keyway N/A 1090 HUB 1-7/8 1/2X1/4KW N/A 1 7/8 in N/A 5/16-18 N/A 1/2 x 1/4 in N/A 3.880 in98.55 mm N/A 1090
69790406155 N/A Grid Coupling Hub w/ Keyway N/A 1090 HUB 2" 1/2X1/4KW N/A 2 in N/A 5/16-18 N/A 1/2 x 1/4 in N/A 3.880 in98.55 mm N/A 1090
69790406127 N/A Grid Coupling Hub w/ Keyway N/A 1090 HUB 2-1/8 1/2X1/4KW N/A 2 1/8 in N/A 5/16-18 N/A 1/2 x 1/4 in N/A 3.880 in98.55 mm N/A 1090
69790406156 N/A Grid Coupling Hub w/ Keyway N/A 1090 HUB 2-3/16 1/2X1/4KW N/A 2 3/16 in N/A 5/16-18 N/A 1/2 x 1/4 in N/A 3.880 in98.55 mm N/A 1090
69790406128 N/A Grid Coupling Hub w/ Keyway N/A 1090 HUB 2-1/4 1/2X1/4KW N/A 2 1/4 in N/A 5/16-18 N/A 1/2 x 1/4 in N/A 3.880 in98.55 mm N/A 1090
69790406129 N/A Grid Coupling Hub w/ Keyway N/A 1090 HUB 2-3/8 5/8X5/16KW N/A 2 3/8 in N/A 5/16-18 N/A 5/8 x 5/16 in N/A 3.880 in98.55 mm N/A 1090
69790405509 N/A Grid Coupling Hub w/ Keyway N/A 1090 HUB 2-1/2 5/8X5/16KW N/A 2 1/2 in N/A 5/16-18 N/A 5/8 x 5/16 in N/A 3.880 in98.55 mm N/A 1090
69790405510 N/A Grid Coupling Hub w/ Keyway N/A 1090 HUB 2-5/8 5/8X5/16KW N/A 2 5/8 in N/A 5/16-18 N/A 5/8 x 5/16 in N/A 3.880 in98.55 mm N/A 1090
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