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All Product Types > INDUSTRIAL MOTION PRODUCTS > Couplings & Power Transmission Parts Catalog > Specialty Products - Deltaflex, Uniflex, Saga, Rigid Sleeve, Shaft Collars > Uniflex Couplings > UFH Type with Keyway, Short Version - Inch (Imperial) Bores > Part Number 68514413872  
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Part Number 68514413872, UFH Type with Keyway, Short Version - Inch (Imperial) Bores


UFH Type - Flange-to-Shaft
    A flange-to-shaft configuration, this couples flange mounted equipment to a shaft with all the benefits of Uniflex versatility. The stock flange plate is the same as used on the UF Type.

    The one-piece UFH Type coupling is similar to the U Type, except that one hub is replaced by a flange plate. Stock flange sizes are shown in the Dimensional Data table below but other sizes can be made to order. As with the other Uniflex styles, this coupling compensates for high degrees of angular and parallel misalignment with very little backlash or windup and is reliable in harsh or severe environments.

    Regular and short versions are available for each size to accommodate different overall length requirements. For increased versatility, the hub can be modified with a tapered, spline, hex or square bore. The standard hub is furnished with either a pre-drilled pin hole or with a keyway and set screw. Specify when ordering.
    Note: The UFH Type coupling does not come with assembly hardware. Assembly hardware must be purchased separately.



Unit of Measure: Imperial Metric Both

Specifications  · Dimensional Data  · Performance Data  · Coupling Design  · Notes

Specifications

Description 
UFH75S-CP-3/4-3/16X3/32KW

Hub Style
Short

Type
Flange-to-Shaft

Material
Steel

Weight
0.87 lb

Color
Gray/Metallic

Bore Type
Finished Bore

# of Mounting Screws Required
3


Dimensional Data

Bore Size 
3/4 in

Hub Size
UFH75S

Set Screw Thread Size (Dimension T)
1/4-20

Keyway Size (W x D)
3/16 x 3/32 in

Dimension HD
1.420 in
36.07 mm

Overall Length
2.000 in
50.80 mm

Pin Location (Dimension SL)
0.41 in

Length thru Bore
0.840 in
21.34 mm

Min. Bore (Dimensions ID1/ID2)
0.375 in
9.53 mm

Max. Bore (Dimensions ID1/ID2)
0.750 in
19.00 mm

Dimension BC
2.000 in
50.80 mm

Dimension D
2.880 in
73.15 mm

Flange Diameter (Dimension FD)
2.500 in
63.50 mm

Dimension FL
0.380 in
9.65 mm

Mounting Screw Thread Size
1/4-20

Cubic inches
12.50000 in³


Performance Data

Operating Temperature Range
-40 to 250 ºF

Max. Torque
175 in·lb

Max. Speed
20000.00 rpm

Max. Recommended End Play
0.020 in
0.51 mm

Max. Parallel Offset
0.019 in
0.48 mm

Wind-Up Angle at Nominal Torque
1.12 º

Wind-Up Angle at Max. Torque
3.00 º

Rated HP at 100 rpm
0.28 hp

# of Set Screws Required
1


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.


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Uniflex Installation Instructions
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