Lovejoy UFH-50R Flange-to-Shaft Uniflex Coupling 5/16 In Bore No Kw w Ss
68514413851, UFH Type without Keyway, Regular & Short Version – Inch (Imperial) Bores
Dimensional Data
Bore Size | 5/16 in |
Hub Size | UFH50R |
Set Screw Thread Size (Dimension T) | 1/4-20 |
Keyway Size (W x D) | No Keyway |
Dimension HD | 1.040 in 26.42 mm |
Overall Length | 2.030 in 51.56 mm |
Pin Size | 0.125 in |
Pin Location (Dimension SL) | 0.310 in |
Length thru Bore | 0.640 in 16.26 mm |
Min. Bore (Dimensions ID1/ID2) | 0.313 in 7.95 mm |
Max. Bore (Dimensions ID1/ID2) | 0.500 in 13.00 mm |
Dimension BC | 1.500 in 38.10 mm |
Dimension D | 1.880 in 47.75 mm |
Flange Diameter (Dimension FD) | 2.000 in 50.80 mm |
Dimension FL | 0.250 in 6.35 mm |
Mounting Screw Thread Size | 1/4-20 |
Cubic inches | 8.12000 in³ |
Performance Data
Operating Temperature Range | -40 to 250 ºF |
Nominal Torque | 82 in·lb |
Rated Torque for 1.0 Service Factor | 82.00 in·lb |
Max. Speed | 30000.00 rpm |
Max. Recommended End Play | 0.035 in 0.89 mm |
Max. Parallel Offset | 0.021 in 0.53 mm |
Wind-Up Angle at Nominal Torque | 1.82 º |
Wind-Up Angle at Max. Torque | 4.5 º |
Rated HP at 100 rpm | 0.13 hp |
# of Set Screws Required | 1 |
Coupling Design
Coupling Design | Flexible Spring Type Coupling with Exclusive Triple Wound Spring Design
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Lovejoy UFH-50R Flange-to-Shaft Uniflex Coupling 5/16 In Bore No Kw w Ss.
This Lovejoy UFH Type Uniflex coupling is an all-steel, single-piece coupling that connects flange mounted equipment to a shaft.
The flexing center of the coupling consists of three opposingly wound square wire springs for forward or reverse operation, providing low backlash/windup.
Its compact, single-piece design allows for placement in tight places, and its all-metal design is durable and requires no lubrication.
This coupling is resistant to oil, grease, dirt, and most industrial chemicals and can withstand temperatures ranging from -40 to 450 degrees F. A set screw secures the coupling into position on the shaft.
This coupling is suitable for applications such as printing and binding registration, robotics/positioning, conveyors, machine tools, centrifugal pumps, agricultural machinery, blowers, winding machines, and steering mechanisms.
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.
