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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69790405567 N/A Grid Coupling Hub w/ Keyway & Puller Hole N/A 1140 HUB 5.9960/5.9975 KW&PH N/A 6 in N/A No Setscrew N/A 1 1/2 x 3/4 in N/A 7.250 in184.15 mm N/A 1140
69790405568 N/A Grid Coupling Hub w/ Keyway & Puller Hole N/A 1140 HUB 6.4960/6.4975 KW&PH N/A 6 1/2 in N/A No Setscrew N/A 1 1/2 x 3/4 in N/A 7.250 in184.15 mm N/A 1140
69790405569 N/A Grid Coupling Hub w/ Keyway & Puller Hole N/A 1140 HUB 6.9960/6.9975 KW&PH N/A 7 in N/A No Setscrew N/A 1 1/2 x 3/4 in N/A 7.250 in184.15 mm N/A 1140
69790405561 N/A Grid Coupling Hub w/ Keyway & Puller Hole N/A 1130 HUB 5.9960/5.9975 KW&PH N/A 6 in N/A No Setscrew N/A 1 1/2 x 3/4 in N/A 6.380 in162.05 mm N/A 1130
69790405565 N/A Grid Coupling Hub w/ Keyway & Puller Hole N/A 1140 HUB 4.9965/4.9980 KW&PH N/A 5 in N/A No Setscrew N/A 1 1/4 x 5/8 in N/A 7.250 in184.15 mm N/A 1140
69790405566 N/A Grid Coupling Hub w/ Keyway & Puller Hole N/A 1140 HUB 5.4960/5.4975KW&PH N/A 5 1/2 in N/A No Setscrew N/A 1 1/4 x 5/8 in N/A 7.250 in184.15 mm N/A 1140
69790405552 N/A Grid Coupling Hub w/ Keyway & Puller Hole N/A 1120 HUB 4.9965/4.9980 KW&PH N/A 5 in N/A No Setscrew N/A 1 1/4 x 5/8 in N/A 5.880 in149.35 mm N/A 1120
69790405559 N/A Grid Coupling Hub w/ Keyway & Puller Hole N/A 1130 HUB 4.9965/4.9980 KW&PH N/A 5 in N/A No Setscrew N/A 1 1/4 x 5/8 in N/A 6.380 in162.05 mm N/A 1130
69790405560 N/A Grid Coupling Hub w/ Keyway & Puller Hole N/A 1130 HUB 5.4960/5.4975 KW&PH N/A 5 1/2 in N/A No Setscrew N/A 1 1/4 x 5/8 in N/A 6.380 in162.05 mm N/A 1130
69790405556 N/A Grid Coupling Hub w/ Keyway & Puller Hole N/A 1130 HUB 3.8720/3.8735 KW&PH N/A 3 7/8 in N/A No Setscrew N/A 1 x 1/2 in N/A 6.380 in162.05 mm N/A 1130
69790405557 N/A Grid Coupling Hub w/ Keyway & Puller Hole N/A 1130 HUB 3.9970/3.9985 KW&PH N/A 4 in N/A No Setscrew N/A 1 x 1/2 in N/A 6.380 in162.05 mm N/A 1130
69790405558 N/A Grid Coupling Hub w/ Keyway & Puller Hole N/A 1130 HUB 4.4965/4.4980 KW&PH N/A 4 1/2 in N/A No Setscrew N/A 1 x 1/2 in N/A 6.380 in162.05 mm N/A 1130
69790405562 N/A Grid Coupling Hub w/ Keyway & Puller Hole N/A 1140 HUB 3.8720/3.8735 KW&PH N/A 3 7/8 in N/A No Setscrew N/A 1 x 1/2 in N/A 7.250 in184.15 mm N/A 1140
69790405563 N/A Grid Coupling Hub w/ Keyway & Puller Hole N/A 1140 HUB 3.9970/3.9985 KW&PH N/A 4 in N/A No Setscrew N/A 1 x 1/2 in N/A 7.250 in184.15 mm N/A 1140
69790405564 N/A Grid Coupling Hub w/ Keyway & Puller Hole N/A 1140 HUB 4.4965/4.4980 KW&PH N/A 4 1/2 in N/A No Setscrew N/A 1 x 1/2 in N/A 7.250 in184.15 mm N/A 1140
69790405539 N/A Grid Coupling Hub w/ Keyway & Puller Hole N/A 1110 HUB 3.8720/3.8735 KW&PH N/A 3 7/8 in N/A No Setscrew N/A 1 x 1/2 in N/A 5.00 in127.00 mm N/A 1110
69790405540 N/A Grid Coupling Hub w/ Keyway & Puller Hole N/A 1110 HUB 3.9970/3.9985 KW&PH N/A 4 in N/A No Setscrew N/A 1 x 1/2 in N/A 5.00 in127.00 mm N/A 1110
69790405541 N/A Grid Coupling Hub w/ Keyway & Puller Hole N/A 1110 HUB 4.4965/4.4980 KW&PH N/A 4 1/2 in N/A No Setscrew N/A 1 x 1/2 in N/A 5.00 in127.00 mm N/A 1110
69790405549 N/A Grid Coupling Hub w/ Keyway & Puller Hole N/A 1120 HUB 3.8720/3.8735 KW&PH N/A 3 7/8 in N/A No Setscrew N/A 1 x 1/2 in N/A 5.880 in149.35 mm N/A 1120
69790405550 N/A Grid Coupling Hub w/ Keyway & Puller Hole N/A 1120 HUB 3.9970/3.9985 KW&PH N/A 4 in N/A No Setscrew N/A 1 x 1/2 in N/A 5.880 in149.35 mm N/A 1120
69790405551 N/A Grid Coupling Hub w/ Keyway & Puller Hole N/A 1120 HUB 4.4965/4.4980 KW&PH N/A 4 1/2 in N/A No Setscrew N/A 1 x 1/2 in N/A 5.880 in149.35 mm N/A 1120
69790405530 N/A Grid Coupling Hub w/ Keyway & Puller Hole N/A 1100 HUB 3.8720/3.8735 KW&PH N/A 3 7/8 in N/A No Setscrew N/A 1 x 1/2 in N/A 4.750 in120.65 mm N/A 1100
69790405531 N/A Grid Coupling Hub w/ Keyway & Puller Hole N/A 1100 HUB 3.9970/3.9985 KW&PH N/A 4 in N/A No Setscrew N/A 1 x 1/2 in N/A 4.750 in120.65 mm N/A 1100
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
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