The Timken Company
The Timken Company
4500 Mt Pleasant St. NW
N. Canton, OH 44720
Phone: (234) 262-3000
E-Mail: CustomerCAD@timken.com • Web site: www.timken.com
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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.
UFH Type Uniflex Couplings w/ Keyway, Regular Version, Flange-to-Shaft Configuration - Imperial
UFH Type Uniflex Couplings w/ Keyway, Regular Version, Flange-to-Shaft Configuration - Imperial-2
Unit of Measure
Items UFH Type Uniflex Couplings w/ Keyway, Regular Version, Flange-to-Shaft Configuration - Imperial
68514456568
UFH Type with Keyway, Short Version - Inch (Imperial) Bores 		UFH Type Uniflex Couplings w/ Keyway, Regular Version, Flange-to-Shaft Configuration - Imperial
68514413870
UFH Type with Keyway, Short Version - Inch (Imperial) Bores 		UFH Type Uniflex Couplings w/ Keyway, Regular Version, Flange-to-Shaft Configuration - Imperial
68514413872
UFH Type with Keyway, Short Version - Inch (Imperial) Bores 		UFH Type Uniflex Couplings w/ Keyway, Regular Version, Flange-to-Shaft Configuration - Imperial
68514468125
UFH Type with Keyway, Short Version - Inch (Imperial) Bores 		UFH Type Uniflex Couplings w/ Keyway, Regular Version, Flange-to-Shaft Configuration - Imperial
68514413890
UFH Type with Keyway, Short Version - Inch (Imperial) Bores
Description  N/A UFH50S-CP-1/2-1/8X1/16KW N/A UFH75S-CP-5/8-3/16X3/32KW-2.38 PILOT N/A UFH75S-CP-3/4-3/16X3/32KW N/A UFH87S-CP-3/4-3/16X3/32KW N/A UFH100S-CP-1"-1/4X1/8KW
Bore Size  N/A 1/2 in N/A 5/8 in N/A 3/4 in N/A 3/4 in N/A 1 in
Hub Style N/A Short
Type N/A Flange-to-Shaft
Hub Size N/A UFH50S N/A UFH75S N/A UFH75S N/A UFH87S N/A UFH100S
Material N/A Steel
Set Screw Thread Size (Dimension T) N/A 1/4-20
Keyway Size (W x D) N/A 1/8 x 1/16 in N/A 3/16 x 3/32 in N/A 3/16 x 3/32 in N/A 3/16 x 3/32 in N/A 1/4 x 1/8 in
Weight N/A 0.48 lb N/A 0.87 lb N/A 0.87 lb N/A 1.40 lb N/A 2.30 lb
Dimension HD N/A 1.040 in26.42 mm N/A 1.420 in36.07 mm N/A 1.420 in36.07 mm N/A 1.730 in43.94 mm N/A 2.110 in53.59 mm
Overall Length N/A 1.500 in38.10 mm N/A 2.000 in50.80 mm N/A 2.000 in50.80 mm N/A 2.250 in57.15 mm N/A 2.880 in73.15 mm
Pin Location (Dimension SL) N/A 0.310 in N/A 0.41 in N/A 0.41 in N/A 0.44 in N/A 0.560 in
Color N/A Gray/Metallic
Operating Temperature Range N/A -40 to 250 ºF
Max. Torque N/A 82 in·lb N/A 175 in·lb N/A 175 in·lb N/A 346 in·lb N/A 565 in·lb
Length thru Bore N/A 0.500 in12.70 mm N/A 0.840 in21.34 mm N/A 0.840 in21.34 mm N/A 0.840 in21.34 mm N/A 1.000 in25.40 mm
Bore Type N/A Finished Bore
Min. Bore (Dimensions ID1/ID2) N/A 0.313 in7.95 mm N/A 0.375 in9.53 mm N/A 0.375 in9.53 mm N/A 0.438 in11.13 mm N/A 0.438 in11.13 mm
Max. Bore (Dimensions ID1/ID2) N/A 0.500 in13.00 mm N/A 0.750 in19.00 mm N/A 0.750 in19.00 mm N/A 0.875 in22.00 mm N/A 1.000 in25.00 mm
Max. Speed N/A 30000.00 rpm N/A 20000.00 rpm N/A 20000.00 rpm N/A 10000 rpm N/A 6000 rpm
Dimension BC N/A 1.500 in38.10 mm N/A 2.000 in50.80 mm N/A 2.000 in50.80 mm N/A 2.250 in57.15 mm N/A 2.680 in68.07 mm
Dimension D N/A 1.880 in47.75 mm N/A 2.880 in73.15 mm N/A 2.880 in73.15 mm N/A 2.750 in69.85 mm N/A 3.120 in79.25 mm
Flange Diameter (Dimension FD) N/A 2.000 in50.80 mm N/A 2.500 in63.50 mm N/A 2.500 in63.50 mm N/A 2.880 in73.15 mm N/A 3.250 in82.55 mm
Dimension FL N/A 0.250 in6.35 mm N/A 0.380 in9.65 mm N/A 0.380 in9.65 mm N/A 0.380 in9.65 mm N/A 0.380 in9.65 mm
Mounting Screw Thread Size N/A 1/4-20 N/A 1/4-20 N/A 1/4-20 N/A 1/4-20 N/A 5/16-18
Max. Recommended End Play N/A 0.010 in0.25 mm N/A 0.020 in0.51 mm N/A 0.020 in0.51 mm N/A 0.020 in0.51 mm N/A 0.020 in0.51 mm
Max. Parallel Offset N/A 0.014 in0.36 mm N/A 0.019 in0.48 mm N/A 0.019 in0.48 mm N/A 0.024 in0.61 mm N/A 0.030 in0.76 mm
Wind-Up Angle at Nominal Torque N/A 1.05 º N/A 1.12 º N/A 1.12 º N/A 1.17 º N/A 1.03 º
Wind-Up Angle at Max. Torque N/A 3.00 º
Rated HP at 100 rpm N/A 0.13 hp N/A 0.28 hp N/A 0.28 hp N/A 0.55 hp N/A 0.90 hp
# of Mounting Screws Required N/A 3
# of Set Screws Required N/A 1
Cubic inches N/A 6.00000 in³ N/A 12.50000 in³ N/A 12.50000 in³ N/A 18.66240 in³ N/A 30.42000 in³