Lovejoy RRU-125 Drop-Out Style Uniflex Coupling Hub 1/2 In Bore

68514446489, RRU Type Hubs without Keyway – Inch (Imperial) Bores

Dimensional Data

Bore Size	1/2 in
Coupling	RRU125
Set Screw Thread Size (Dimension T)	3/8-16
Keyway Size (W x D)	No Keyway
Overall Length	5.840 in 148.34 mm
Min. Bore (Dimensions ID1/ID2)	0.625 in 15.88 mm
Max. Bore (Dimensions ID1/ID2)	1.625 in 41.28 mm
Dimension BC	3.120 in 79.25 mm
Dimension D	3.560 in 90.42 mm
Dimension FD	3.680 in 93.47 mm
Dimension FL	0.500 in 12.70 mm
Dimension FL1	0.500 in 12.70 mm
Dimension HD	2.750 in 69.85 mm
Dimension HL	1.620 in 41.15 mm
Dimension S	2.620 in 66.55 mm
Pin Location (Dimension SL)	0.560 in
Pin Size	5/16 in
Cubic inches	21.93869 in³

Performance Data

Max. Torque	755.00 in·lb
Max. Speed	6000 rpm
Max. Recommended End Play	0.040 in 1.02 mm
Max. Parallel Offset	0.044 in 1.12 mm
Max. Angular Offset	4.50 º
Wind-Up Angle at Max. Torque	1.85 º
Rated HP at 100 rpm	1.21 hp
# of Set Screws Required per Hub	1
Max. Torque	755 in·lb

Coupling Design

Coupling Design

Flexible Spring Type Coupling with Exclusive Triple Wound Spring Design The Uniflex Coupling is an all steel, single piece coupling that solves a variety of application concerns including: high misalignment, space limitations, high temperature, and exceptionally low backlash/windup. The unique flexing center of the Uniflex consists of three opposingly wound square wire springs for forward or reverse operation. Two steel hubs are then brazed to the steel spring pack to create a durable one-piece flexible coupling.

Lovejoy RRU-125 Drop-Out Style Uniflex Coupling Hub 1/2 In Bore

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.

Lovejoy RRU-125 Drop-Out Style Uniflex Coupling Hub 1/2 In Bore

Asin	B004S2SYFY