Lovejoy 1070 Grid Hub 42 mm Bore 12mm KW
69790405819, Grid Coupling Hubs – Metric Bore
Dimensional Data
Bore Size | 42 mm |
Lovejoy® Grid Coupling Size | 1070 |
Set Screw Style Coupling Size (Dimension T) | 1/4-20 |
Set Screw Style Coupling Location Size (Dimension SL) | 0.880 in 22.35 mm |
Keyway Size (W x D) | 12 x 3.3 mm |
Height | 3.440 in |
Width | 3.440 in |
Length thru Bore | 3.000 in 76.20 mm |
Overall Length | 6.120 in 155.50 mm |
Outside Diameter (Horiontal Style Cover) | 6.370 in 161.80 mm |
Outside Diameter (Vertical Style Cover) | 6.810 in 173.00 mm |
Min. Bore (Dimensions ID1/ID2) | 0.750 in 19.00 mm |
Max. Bore (Dimensions ID1/ID2) | 2.500 in 64.00 mm |
Dimension FD | 4.880 in 123.80 mm |
Dimension FL | 0.500 in 12.70 mm |
Dimension HD | 3.440 in 87.30 mm |
Dimension G1 | 0.118 in 3.00 mm |
Dimension L (Horizontal Style Cover) | 3.800 in 96.52 mm |
Dimension L (Vertical Style Cover) | 1.330 in 33.78 mm |
Max. Parallel Misalignment at Installation (Dimension P) | 0.0080 in |
Max. Parallel Misalignment during Operation (Dimension P) | 0.016 in |
Dimension R | 2.630 in 66.80 mm |
Dimension SL | 0.880 in 22.35 mm |
Distance between Shaft Ends (Dimension G) – Normal Gap | 0.118 in 3.00 mm |
Cubic inches | 35.50080 in³ |
Performance Data
Nominal Torque | 8800.00 in·lb 994.00 N·m |
Max. Speed (Horizontal Style Cover) | 4125.00 rpm |
Max. Speed (Vertical Style Cover) | 5500.00 rpm |
Max. Angular Misalignment at Installation (X-Y) | 0.005 in |
Max. Angular Misalignment during Operation (X-Y) | 0.020 in |
Lovejoy 1070 Grid Hub 42 mm Bore 12mm KW
Grid Hubs
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 metric 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.
