Lovejoy 1090 HUB 2-3/8.
Lovejoy 69790406129 1090 Grid Coupling Hub, Inch, 2.375″ Bore, 7.88″ Overall Coupling Length, 33000 in-lbs Max Torque, 0.625″ x 0.312″ Keyway.
Dimensional Data
Bore Size | 2 3/8 in |
Set Screw Style Coupling Size (Dimension T) | 5/16-18 |
Set Screw Style Coupling Location Size (Dimension SL) | 1.030 in 26.16 mm |
Keyway Size (W x D) | 5/8 x 5/16 in |
Length thru Bore | 3.880 in 98.55 mm |
Overall Length | 7.880 in 200 mm |
Outside Diameter (Horiontal Style Cover) | 8.390 in 213.00 mm |
Outside Diameter (Vertical Style Cover) | 7.880 in 200.20 mm |
Min. Bore (Dimensions ID1/ID2) | 1.062 in 27.00 mm |
Max. Bore (Dimensions ID1/ID2) | 3.500 in 89.00 mm |
Dimension FD | 5.880 in 149.20 mm |
Dimension FL | 0.500 in 12.70 mm |
Dimension HD | 4.870 in 123.70 mm |
Dimension G1 | 0.118 in 3.00 mm |
Dimension L (Horizontal Style Cover) | 4.800 in 121.92 mm |
Dimension L (Vertical Style Cover) | 1.860 in 47.24 mm |
Dimension R | 3.750 in 95.25 mm |
Dimension SL | 1.030 in 26.16 mm |
Distance between Shaft Ends (Dimension G) – Normal Gap | 0.118 in 3.00 mm |
Cubic inches | 92.02157 in³ |
Performance Data
Nominal Torque | 33000.00 in·lb |
Max. Speed (Horizontal Style Cover) | 3600.00 rpm |
Max. Speed (Vertical Style Cover) | 4000.00 rpm |
Max. Parallel Misalignment at Installation (Dimension P) | 0.0080 in |
Max. Parallel Misalignment during Operation (Dimension P) | 0.016 in |
Max. Angular Misalignment at Installation (X-Y) | 0.007 in |
Max. Angular Misalignment during Operation (X-Y) | 0.028 in |
This Lovejoy 1000 series grid coupling assembly hub replaces existing hubs on Lovejoy 1000 series style grid couplings and is made of stamped steel for strength and durability. Grid couplings, a type of flexible coupling, use a flexible grid that fits into slotted hubs to transmit torque and offset rotational misalignment.
The serpentine shape of the grid absorbs impact energy, reduces vibration, and transmits torque from one hub to the other through the grid. This hub is suitable for both horizontal and vertical-style coupling designs and uses imperial unit measurements for industry consistency and interchangeability. It has an operating temperature range of -40 to 250 degrees F (-40 to 121 degrees C).
Together with the other component parts of the coupling assembly, the grid supports constant angular misalignments up to 0.25 degrees. It meets International Organization for Standardization (ISO) 9001 for quality assurance. Lovejoy 1000 series grid couplings are suitable for use in various industrial power transmission applications such as pumps, mixers, crushers, fans, compressors, conveyors, pulverizers, and other equipment found in the steel, pulp, paper, mining, aggregate, and construction industries.
Flexible couplings are used to link two rotating shafts that are not aligned in order to transmit the rotational power, known as torque, from one shaft to the other. Most flexible couplings consist of two hubs and a middle assembly; each hub attaches to a shaft while the middle assembly flexes between the hubs to accommodate the misalignment of the two shafts.
Shaft misalignments are generally either parallel or angular and cause complications to transmitting rotational power from one shaft to another in the form of stresses, loads, vibrations, and other forces, which vary from one type of misalignment to another. Flexible couplings are used in a broad range of applications, such as in motor vehicles, conveyors, escalators, agricultural, forestry and mining equipment, aeronautics, robotics and space exploration, among others.
Lovejoy manufactures flexible couplings, universal joints, variable speed drives and various other transmission and mechanical power products. Their products meet the standards of the International Organization for Standardization (ISO), the Deutsches Institut für Normung (DIN), the American National Standards Institute (ANSI), the American Gear Manufacturers Association (AGMA), the Society of Automotive Engineers (SAE) and Japanese Industrial Standards (JIS) for quality assurance. The company, founded in 1900, is based in Downers Grove, IL.
