Lovejoy RRU-150 Drop-Out Style Uniflex Coupling Hub 7/8 In Bore No Kw
68514413831, RRU Type Hubs without Keyway – Inch (Imperial) Bores
Dimensional Data
Bore Size | 7/8 in |
Coupling | RRU150 |
Set Screw Thread Size (Dimension T) | 3/8-16 |
Keyway Size (W x D) | No Keyway |
Overall Length | 7.660 in 194.56 mm |
Min. Bore (Dimensions ID1/ID2) | 0.750 in 19.05 mm |
Max. Bore (Dimensions ID1/ID2) | 2.125 in 53.98 mm |
Dimension BC | 4.380 in 111.25 mm |
Dimension D | 5.000 in 127.00 mm |
Dimension FD | 5.380 in 136.65 mm |
Dimension FL | 0.620 in 15.75 mm |
Dimension FL1 | 0.500 in 12.70 mm |
Dimension HD | 3.75 in 95.25 mm |
Dimension HL | 2.120 in 53.85 mm |
Dimension S | 3.440 in 87.38 mm |
Pin Location (Dimension SL) | 0.820 in |
Pin Size | 3/8 in |
Cubic inches | 61.36213 in³ |
Performance Data
Max. Torque | 1890.00 in·lb |
Max. Speed | 3000 rpm |
Max. Recommended End Play | 0.040 in 1.02 mm |
Max. Parallel Offset | 0.041 in 1.04 mm |
Max. Angular Offset | 3.00 º |
Wind-Up Angle at Max. Torque | 0.85 º |
Rated HP at 100 rpm | 3.02 hp |
# of Set Screws Required per Hub | 1 |
Max. Torque | 1890 in·lb |
Coupling Design
Coupling Design | Flexible Spring Type Coupling with Exclusive Triple Wound Spring Design
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Lovejoy RRU-150 Drop-Out Style Uniflex Coupling Hub 7/8 In Bore No Kw
This Lovejoy RRU steel coupling hub can be fastened with cap screws to both ends of a Uniflex double flange coupling for connecting rotating shafts and providing low backlash/windup.
The hub has a quick disconnect design to meet drop out requirements. This hub is made of steel for strength and durability, has a finished bore that fits onto shaft without the need for machining, and requires no lubrication.
It is resistant to oil, grease, dirt, and most industrial chemicals. This hub can be used with couplings 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.
