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

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69790404386 N/A Grid Coupling Hub w/ Keyway N/A 1090 HUB 2-15/16 3/4X3/8KW N/A 2 15/16 in N/A 5/16-18 N/A 3/4 x 3/8 in N/A 3.880 in98.55 mm N/A 1090
69790405231 N/A Grid Coupling Solid Hub N/A 1020 HUB SOLID N/A N/A 8-32 N/A N/A 1.880 in47.75 mm N/A 1020
69790405232 N/A Grid Coupling Solid Hub N/A 1030 HUB SOLID N/A N/A 8-32 N/A N/A 1.880 in47.75 mm N/A 1030
69790405233 N/A Grid Coupling Solid Hub N/A 1040 HUB SOLID N/A N/A 10-24 N/A N/A 2.000 in50.80 mm N/A 1040
69790405234 N/A Grid Coupling Solid Hub N/A 1050 HUB SOLID N/A N/A 10-24 N/A N/A 2.380 in60.45 mm N/A 1050
69790405235 N/A Grid Coupling Solid Hub N/A 1060 HUB SOLID N/A N/A 10-24 N/A N/A 2.500 in63.50 mm N/A 1060
69790405236 N/A Grid Coupling Solid Hub N/A 1070 HUB SOLID N/A N/A 1/4-20 N/A N/A 3.000 in76.20 mm N/A 1070
69790405237 N/A Grid Coupling Solid Hub N/A 1080 HUB SOLID N/A N/A 1/4-20 N/A N/A 3.50 in88.90 mm N/A 1080
69790405238 N/A Grid Coupling Solid Hub N/A 1090 HUB SOLID N/A N/A 5/16-18 N/A N/A 3.880 in98.55 mm N/A 1090
69790405239 N/A Grid Coupling Solid Hub w/ Puller Hole N/A 1100 HUB SOLID W/PULLER HOLE N/A N/A No Setscrew N/A N/A 4.750 in120.65 mm N/A 1100
69790405240 N/A Grid Coupling Solid Hub w/ Puller Hole N/A 1110 HUB SOLID W/PULLER HOLE N/A N/A No Setscrew N/A N/A 5.880 in149.35 mm N/A 1120
69790405241 N/A Grid Coupling Solid Hub w/ Puller Hole N/A 1120 HUB SOLID W/PULLER HOLE N/A N/A No Setscrew N/A N/A 5.880 in149.35 mm N/A 1120
69790405242 N/A Grid Coupling Solid Hub w/ Puller Hole N/A 1130 HUB SOLID W/PULLER HOLE N/A N/A No Setscrew N/A N/A 6.380 in162.05 mm N/A 1130
69790405243 N/A Grid Coupling Solid Hub w/ Puller Hole N/A 1140 HUB SOLID W/PULLER HOLE N/A N/A No Setscrew N/A N/A 7.250 in184.15 mm N/A 1140
69790405458 N/A Grid Coupling Hub w/ Keyway N/A 1020 HUB 1/2 1/8X1/16KW N/A 1/2 in N/A 8-32 N/A 1/8 x 1/16 in N/A 1.880 in47.75 mm N/A 1020
69790405459 N/A Grid Coupling Hub w/ Keyway N/A 1020 HUB 5/8 3/16X3/32KW N/A 5/8 in N/A 8-32 N/A 3/16 x 3/32 in N/A 1.880 in47.75 mm N/A 1020
69790405460 N/A Grid Coupling Hub w/ Keyway N/A 1020 HUB 3/4 3/16X3/32KW N/A 3/4 in N/A 8-32 N/A 3/16 x 3/32 in N/A 1.880 in47.75 mm N/A 1020
69790405461 N/A Grid Coupling Hub w/ Keyway N/A 1020 HUB 7/8 3/16X3/32KW N/A 7/8 in N/A 8-32 N/A 3/16 x 3/32 in N/A 1.880 in47.75 mm N/A 1020
69790405462 N/A Grid Coupling Hub w/ Keyway N/A 1020 HUB 1" 1/4X1/8KW N/A 1 in N/A 8-32 N/A 1/4 x 1/8 in N/A 1.880 in47.75 mm N/A 1020
69790405463 N/A Grid Coupling Hub w/ Keyway N/A 1020 HUB 1-1/8 1/4X1/8KW N/A 1 1/8 in N/A 8-32 N/A 1/4 x 1/8 in N/A 1.880 in47.75 mm N/A 1020
69790405464 N/A Grid Coupling Hub w/ Keyway N/A 1030 HUB 5/8 3/16X3/32KW N/A 5/8 in N/A 8-32 N/A 3/16 x 3/32 in N/A 1.880 in47.75 mm N/A 1030
69790405465 N/A Grid Coupling Hub w/ Keyway N/A 1030 HUB 3/4 3/16X3/32KW N/A 3/4 in N/A 8-32 N/A 3/16 x 3/32 in N/A 1.880 in47.75 mm N/A 1030
69790405466 N/A Grid Coupling Hub w/ Keyway N/A 1030 HUB 7/8 3/16X3/32KW N/A 7/8 in N/A 8-32 N/A 3/16 x 3/32 in N/A 1.880 in47.75 mm N/A 1030
69790405467 N/A Grid Coupling Hub w/ Keyway N/A 1030 HUB 1" 1/4X1/8KW N/A 1 in N/A 8-32 N/A 1/4 x 1/8 in N/A 1.880 in47.75 mm N/A 1030
69790405468 N/A Grid Coupling Hub w/ Keyway N/A 1030 HUB 1-1/8 1/4X1/8KW N/A 1 1/8 in N/A 8-32 N/A 1/4 x 1/8 in N/A 1.880 in47.75 mm N/A 1030
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