Lovejoy UFH-125S Flange-to-Shaft Uniflex Coupling 3/4 In Bore with Kw

68514413903, UFH Type with Keyway, Short Version – Inch (Imperial) Bores

Dimensional Data

Bore Size	3/4 in
Hub Size	UFH125S
Set Screw Thread Size (Dimension T)	3/8-16
Keyway Size (W x D)	3/16 x 3/32 in
Dimension HD	2.170 in 55.12 mm
Overall Length	2.820 in 71.63 mm
Pin Location (Dimension SL)	0.62 in
Length thru Bore	1.100 in 27.94 mm
Min. Bore (Dimensions ID1/ID2)	0.625 in 15.88 mm
Max. Bore (Dimensions ID1/ID2)	1.25 in 32.00 mm
Dimension BC	3.120 in 79.25 mm
Dimension D	3.560 in 90.42 mm
Flange Diameter (Dimension FD)	3.680 in 93.47 mm
Dimension FL	0.500 in 12.70 mm
Mounting Screw Thread Size	5/16-18
Cubic inches	38.18957 in³

Performance Data

Operating Temperature Range	-40 to 250 ºF
Max. Torque	755 in·lb
Max. Speed	6000 rpm
Max. Recommended End Play	0.020 in 0.51 mm
Max. Parallel Offset	0.030 in 0.76 mm
Wind-Up Angle at Nominal Torque	1.22 º
Wind-Up Angle at Max. Torque	3.00 º
Rated HP at 100 rpm	1.21 hp
# of Set Screws Required	1

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.

Notes

Notes

Total backlash is approximately 1/3 of windup at maximum torque – consult Lovejoy Engineering for more information. OAL & Dimension FL Tolerance + .12 inch. Mounting screws not supplied.

Lovejoy UFH-125S Flange-to-Shaft Uniflex Coupling 3/4 In Bore with Kw

 

This Lovejoy UFH Type coupling is a short, 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 keyway prevents the shaft from rotating in the hub. 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.

Lovejoy UFH-125S Flange-to-Shaft Uniflex Coupling 3/4 In Bore with Kw

Asin	B004S2T9GM