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

69790405471 N/A Grid Coupling Hub w/ Keyway N/A 1040 HUB 7/8 3/16X3/32KW N/A 7/8 in N/A 10-24 N/A 3/16 x 3/32 in N/A 2.000 in50.80 mm N/A 1040
69790406103 N/A Grid Coupling Hub w/ Keyway N/A 1040 HUB 15/16 1/4X1/8KW N/A 15/16 in N/A 10-24 N/A 1/4 x 1/8 in N/A 2.000 in50.80 mm N/A 1040
69790406107 N/A Grid Coupling Hub w/ Keyway N/A 1050 HUB 1" 1/4X1/8KW N/A 1 in N/A 10-24 N/A 1/4 x 1/8 in N/A 2.380 in60.45 mm N/A 1050
69790405478 N/A Grid Coupling Hub w/ Keyway N/A 1050 HUB 1-1/8 1/4X1/8KW N/A 1 1/8 in N/A 10-24 N/A 1/4 x 1/8 in N/A 2.380 in60.45 mm N/A 1050
69790406108 N/A Grid Coupling Hub w/ Keyway N/A 1050 HUB 1-3/16 1/4X1/8KW N/A 1 3/16 in N/A 10-24 N/A 1/4 x 1/8 in N/A 2.380 in60.45 mm N/A 1050
69790405479 N/A Grid Coupling Hub w/ Keyway N/A 1050 HUB 1-1/4 1/4X1/8KW N/A 1 1/4 in N/A 10-24 N/A 1/4 x 1/8 in N/A 2.380 in60.45 mm N/A 1050
69790405480 N/A Grid Coupling Hub w/ Keyway N/A 1050 HUB 1-3/8 5/16X5/532KW N/A 1 3/8 in N/A 10-24 N/A 5/16 x 5/32 in N/A 2.380 in60.45 mm N/A 1050
69790406109 N/A Grid Coupling Hub w/ Keyway N/A 1050 HUB 1-7/16 3/8X3/16KW N/A 1 7/16 in N/A 10-24 N/A 3/8 x 3/16 in N/A 2.380 in60.45 mm N/A 1050
69790405481 N/A Grid Coupling Hub w/ Keyway N/A 1050 HUB 1-1/2 3/8X3/16KW N/A 1 1/2 in N/A 10-24 N/A 3/8 x 3/16 in N/A 2.380 in60.45 mm N/A 1050
69790405482 N/A Grid Coupling Hub w/ Keyway N/A 1050 HUB 1-5/8 3/8X3/16KW N/A 1 5/8 in N/A 10-24 N/A 3/8 x 3/16 in N/A 2.380 in60.45 mm N/A 1050
69790406110 N/A Grid Coupling Hub w/ Keyway N/A 1050 HUB 1-11/16 3/8X3/16KW N/A 1 11/16 in N/A 10-24 N/A 3/8 x 3/16 in N/A 2.380 in60.45 mm N/A 1050
69790405483 N/A Grid Coupling Hub w/ Keyway N/A 1050 HUB 1-3/4 3/8X3/16KW N/A 1 3/4 in N/A 10-24 N/A 3/8 x 3/16 in N/A 2.380 in60.45 mm N/A 1050
69790406111 N/A Grid Coupling Hub w/ Keyway N/A 1050 HUB 1-13/16 1/2X1/4KW N/A 1 13/16 in N/A 10-24 N/A 1/2 x 1/4 in N/A 2.380 in60.45 mm N/A 1050
69790405484 N/A Grid Coupling Hub w/ Keyway N/A 1050 HUB 1-7/8 1/2X1/4KW N/A 1 7/8 in N/A 10-24 N/A 1/2 x 1/4 in N/A 2.380 in60.45 mm N/A 1050
69790406141 N/A Grid Coupling Hub w/ Keyway N/A 1050 HUB 7/8 3/16X3/32KW N/A 7/8 in N/A 10-24 N/A 3/16 x 3/32 in N/A 2.380 in60.45 mm N/A 1050
69790406106 N/A Grid Coupling Hub w/ Keyway N/A 1050 HUB 15/16 1/4X1/8KW N/A 15/16 in N/A 10-24 N/A 1/4 x 1/8 in N/A 2.380 in60.45 mm N/A 1050
69790406112 N/A Grid Coupling Hub w/ Keyway N/A 1060 HUB 1" 1/4X1/8KW N/A 1 in N/A 10-24 N/A 1/4 x 1/8 in N/A 2.500 in63.50 mm N/A 1060
69790406113 N/A Grid Coupling Hub w/ Keyway N/A 1060 HUB 1-1/8 1/4X1/8KW N/A 1 1/8 in N/A 10-24 N/A 1/4 x 1/8 in N/A 2.500 in63.50 mm N/A 1060
69790406114 N/A Grid Coupling Hub w/ Keyway N/A 1060 HUB 1-3/16 1/4X1/8KW N/A 1 3/16 in N/A 10-24 N/A 1/4 x 1/8 in N/A 2.500 in63.50 mm N/A 1060
69790406115 N/A Grid Coupling Hub w/ Keyway N/A 1060 HUB 1-1/4 1/4X1/8KW N/A 1 1/4 in N/A 10-24 N/A 1/4 x 1/8 in N/A 2.500 in63.50 mm N/A 1060
69790405485 N/A Grid Coupling Hub w/ Keyway N/A 1060 HUB 1-3/8 5/16X5/32KW N/A 1 3/8 in N/A 10-24 N/A 5/16 x 5/32 in N/A 2.500 in63.50 mm N/A 1060
69790406116 N/A Grid Coupling Hub w/ Keyway N/A 1060 HUB 1-7/16 3/8X3/16KW N/A 1 7/16 in N/A 10-24 N/A 3/8 x 3/16 in N/A 2.500 in63.50 mm N/A 1060
69790405486 N/A Grid Coupling Hub w/ Keyway N/A 1060 HUB 1-1/2 3/8X3/16KW N/A 1 1/2 in N/A 10-24 N/A 3/8 x 3/16 in N/A 2.500 in63.50 mm N/A 1060
69790405487 N/A Grid Coupling Hub w/ Keyway N/A 1060 HUB 1-5/8 3/8X3/16KW N/A 1 5/8 in N/A 10-24 N/A 3/8 x 3/16 in N/A 2.500 in63.50 mm N/A 1060
69790406117 N/A Grid Coupling Hub w/ Keyway N/A 1060 HUB 1-11/16 3/8X3/16KW N/A 1 11/16 in N/A 10-24 N/A 3/8 x 3/16 in N/A 2.500 in63.50 mm N/A 1060
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