Lovejoy U-87S Shaft-to-Shaft Uniflex Coupling 7/8 In Bore A/B w Kw
Lovejoy 68514413426 U-87S Shaft-to-Shaft Uniflex Coupling , 7/8″ Bore A, 7/8″ Bore B, 1.73″ OD, 2.91″ Overall Length, 346 in-lbs Max Torque, 10000 RPM Maximum, 3/16″ x 3/32″ Keyways
Dimensional Data
Bore Size | 7/8 x 7/8 in |
Hub Size | U87S |
Set Screw Thread Size (Dimension T) | 1/4-20 |
Keyway Size (W x D) | 3/16 x 3/32 in |
Dimension HD | 1.730 in43.94 mm |
Overall Length | 2.910 in73.91 mm |
Pin Size | 0.188 in |
Pin Location (Dimension SL) | 0.44 in |
Length thru Bore | 0.840 in21.34 mm |
Min. Bore (Dimensions ID1/ID2) | 0.438 in11.00 mm |
Max. Bore (Dimensions ID1/ID2) | 0.875 in22.23 mm |
Cubic inches | 8.70934 in³ |
Performance Data
Operating Temperature Range | -40 to 250 ºF |
Max. Torque | 346 in·lb |
Max. Speed | 10000 rpm |
Axial Misalignment (∆ Ka) | 0.020 in0.51 mm |
Max. Parallel Misalignment | 0.024 in0.61 mm |
Wind-Up Angle at Nominal Torque | 1.17 º |
Wind-Up Angle at Max. Torque | 3.00 º |
Rated HP at 100 rpm | 0.55 hp |
# of Set Screws Required per Hub | 1 |
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 other transmission and mechanical power products.
The company, founded in 1900, is headquartered in Downers Grove, IL.
