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1050 HUB 28MM 8X3.3MM KW

BRAND: LoveJoy | MODEL: 69790405805 | CONDITION: NEW | SKU: 1800042
1050 HUB 28MM 8X3.3MM KW

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Weight: 3.60 lbs UOM: EA

Additional Description

Technical Specifications

Width 2.630 in
OD 5.430 in



    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.
  • 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
Description 1050 HUB 28MM 8X3.3MM KW
TypeGrid Coupling
Hub MaterialAlloy Steel
Bore TypeFinished Bore and Keyway
Weight3.60 lb
Dimensional Data
Bore Size28.00 mm
Lovejoy® Grid Coupling Size1050
Set Screw Style Coupling Size (Dimension T)10-24
Set Screw Style Coupling Location Size (Dimension SL)0.620 in15.75 mm
Keyway Size (W x D)8 x 3.3 mm
Height2.630 in
Width2.630 in
Length thru Bore2.380 in60.45 mm
Overall Length4.880 in123.80 mm
Outside Diameter (Horiontal Style Cover)5.430 in138.00 mm
Outside Diameter (Vertical Style Cover)5.810 in147.60 mm
Min. Bore (Dimensions ID1/ID2)0.500 in12.00 mm
Max. Bore (Dimensions ID1/ID2)1.875 in48.00 mm
Dimension FD3.880 in98.40 mm
Dimension FL0.470 in11.94 mm
Dimension HD2.630 in66.70 mm
Dimension G10.118 in3.00 mm
Dimension L (Horizontal Style Cover)3.180 in80.77 mm
Dimension L (Vertical Style Cover)1.240 in31.50 mm
Max. Parallel Misalignment at Installation (Dimension P)0.0080 in
Max. Parallel Misalignment during Operation (Dimension P)0.016 in
Dimension R2.380 in60.45 mm
Dimension SL0.620 in15.75 mm
Distance between Shaft Ends (Dimension G) - Normal Gap0.118 in3.00 mm
Cubic inches16.46222 in³
Performance Data
Nominal Torque3850.00 in·lb435.00 N·m
Max. Speed (Horizontal Style Cover)4500.00 rpm
Max. Speed (Vertical Style Cover)6000.00 rpm
Max. Angular Misalignment at Installation (X-Y)0.004 in
Max. Angular Misalignment during Operation (X-Y)0.015 in
Coupling Part Numbers
Falk™ Steelflex® Horizontal Cover Style Coupling Part Number1050T10
Morse® / Browning® Grid-Flex Horizontal Cover Style Coupling Part NumberGF2050H
Dodge® Grid-Lign® Horizontal Cover Style Coupling Part Number1050T10
Kop-Flex® / Kop-Grid® Horizontal Cover Style Coupling Part Number1050H
Falk™ Steelflex® Vertical Cover Style Coupling Part Number1050T20
Morse® / Browning® Grid-Flex Vertical Cover Style Coupling Part NumberGF2050V
Dodge® Grid-Lign® Vertical Cover Style Coupling Part Number1050T20
Kop-Flex® / Kop-Grid® Vertical Cover Style Coupling Part Number1050V
  • High tensile, shot-peened alloy steel grid springs and precision machined hubs ensure superior coupling performance and long life.
  • Lovejoy’s grid couplings with tapered grids are designed to be interchangeable with other industry standard grid couplings with both horizontal and vertical grid covers.
  • Lovejoy grid couplings are designed for ease of installation and maintenance reducing labor and downtime costs.
  • The torsional flexibility and resilience of Lovejoy grid couplings helps reduce vibration and cushions shock and impact loads.
  • Cover fasteners can be provided in either Inch or Metric sizes.
  • Excellent for use in applications where the equipment is close coupled or spaced apart requiring a spacer style coupling arrangement.
  • Stock spacer designs are available or requests for custom spacer lengths can be addressed by Lovejoy engineering.
  • Size 1020 thru 1090 hubs are provided with clearance fit bores and 2 set screws at 90°.
  • Size 1100 thru 1200 hubs are provided with interference fit bores and no set screws.
Lovejoy machines Inch bores and keyways to meet tolerances define in the ANSI/AGMA 9002-B04 Standard.