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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.
Specifications
| Description | UFH50R CPLG 1/2 1/8X1/16KW |
|---|---|
| Hub Style | Regular |
| Type | Flange-to-Shaft |
| Material | Steel |
| Weight | 0.50 lb |
| Color | Gray/Metallic |
| Bore Type | Finished Bore |
| # of Mounting Screws Required | 3 |
Dimensional Data
| Bore Size | 1/2 in |
|---|---|
| Hub Size | UFH50R |
| Set Screw Thread Size (Dimension T) | 1/4-20 |
| Keyway Size (W x D) | 1/8 x 1/16 in |
| Dimension HD | 1.040 in26.42 mm |
| Overall Length | 2.030 in51.56 mm |
| Pin Location (Dimension SL) | 0.310 in |
| Length thru Bore | 0.640 in16.26 mm |
| Min. Bore (Dimensions ID1/ID2) | 0.313 in7.95 mm |
| Max. Bore (Dimensions ID1/ID2) | 0.500 in13.00 mm |
| Dimension BC | 1.500 in38.10 mm |
| Dimension D | 1.880 in47.75 mm |
| Flange Diameter (Dimension FD) | 2.000 in50.80 mm |
| Dimension FL | 0.250 in6.35 mm |
| Mounting Screw Thread Size | 1/4-20 |
| Cubic inches | 8.12000 in³ |
Performance Data
| Operating Temperature Range | -40 to 250 ºF |
|---|---|
| Max. Torque | 82 in·lb |
| Max. Speed | 30000.00 rpm |
| Max. Recommended End Play | 0.035 in0.89 mm |
| Max. Parallel Offset | 0.021 in0.53 mm |
| Wind-Up Angle at Nominal Torque | 1.82 º |
| Wind-Up Angle at Max. Torque | 4.5 º |
| Rated HP at 100 rpm | 0.13 hp |
| # of Set Screws Required | 1 |
Coupling 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
- 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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