Uniflex Coupling
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.
- Flexible triple wound spring design coupling
- Addresses high misalignment, space limits, high temps, & has low backlash/windup
- Smaller and lighter than most couplings of comparable torque ratings
- Applications include: textile equipment, printing and binding registration, robotics/positioning, conveyors, carton folding and gluing equipment, machine tools, centrifugal pumps, agricultural machinery, blowers, winding machines, and steering mechanisms
Resources
Uniflex Coupling Additional Resources
Features
- Compensates for high degrees of misalignment (up to 4.5° angular, up to .045 inches parallel)
- One piece, simple to install – nothing to replace, no wearing parts, & no lubrication
- Well suited for applications with inaccessible mounting locations
- All metal design – can be used in applications with severe environmental concerns
- Standard couplings withstand temperatures to 250°F (due to soldering); special designs to 600° F (stainless steel w/electron beam weld)
- Unaffected by oil, grease, dirt and most industrial chemicals
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U TypeThis is a durable one-piece flexible coupling for general purpose shaft-to-shaft applications. It is the basis for all Uniflex coupling types. |
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RRU TypeThis design offers “quick disconnect” for drop out requirements. It can also accommodate a slightly larger shaft diameter than the standard U Type. |
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UF TypeThis flange-to-flange type is designed to connect flange mounted equipment to another flange while compensating for misalignment. It is also the center drop out section of the RRU Type. |
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UFH TypeA 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. |
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Wind |
Misalignment Capability |
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|
at Max |
Max |
Max Parallel |
Max Rec |
Max |
HP/100 |
Max |
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|
Size |
Torque* |
Offset |
in |
mm |
in |
mm |
in-lb |
Nm |
RPM |
RPM |
|
18 Reg |
1.80° |
3.0° |
0.008 |
0.20 |
0.010 |
0.25 |
18 |
2.0 |
0.03 |
30,000 |
|
25 Reg |
1.80° |
4.5° |
0.011 |
0.28 |
0.020 |
0.51 |
34 |
3.8 |
0.05 |
30,000 |
|
37 Reg |
1.78° |
4.5° |
0.014 |
0.36 |
0.020 |
0.51 |
39 |
4.4 |
0.06 |
30,000 |
|
50 Reg |
1.82° |
4.5° |
0.021 |
0.53 |
0.035 |
0.89 |
82 |
9.3 |
0.13 |
30,000 |
|
62 Reg |
0.85° |
3.0° |
0.019 |
0.48 |
0.035 |
0.89 |
126 |
14.2 |
0.20 |
20,000 |
|
75 Reg |
1.82° |
4.5° |
0.028 |
0.71 |
0.040 |
1.02 |
175 |
19.8 |
0.28 |
20,000 |
|
87 Reg |
1.68° |
4.5° |
0.035 |
0.89 |
0.040 |
1.02 |
346 |
39.1 |
0.55 |
10,000 |
|
100 Reg |
1.03° |
3.0° |
0.030 |
0.76 |
0.040 |
1.02 |
565 |
63.8 |
0.90 |
6,000 |
|
125 Reg |
1.85° |
4.5° |
0.044 |
1.12 |
0.040 |
1.02 |
755 |
85.3 |
1.21 |
6,000 |
|
137 Reg |
1.85° |
3.0° |
0.035 |
0.89 |
0.040 |
1.02 |
1,260 |
142.4 |
2.02 |
6,000 |
|
150 Reg |
0.85° |
3.0° |
0.041 |
1.04 |
0.040 |
1.02 |
1,890 |
213.5 |
3.02 |
3,000 |
|
25 Short |
1.07° |
3.0° |
0.007 |
0.18 |
0.015 |
0.38 |
34 |
3.8 |
0.05 |
30,000 |
|
37 Short |
1.09° |
3.0° |
0.009 |
0.23 |
0.015 |
0.38 |
39 |
4.4 |
0.06 |
30,000 |
|
50 Short |
1.05° |
3.0° |
0.014 |
0.36 |
0.010 |
0.25 |
82 |
9.3 |
0.13 |
30,000 |
|
62 Short |
0.85° |
3.0° |
0.019 |
0.48 |
0.020 |
0.51 |
126 |
14.2 |
0.20 |
20,000 |
|
75 Short |
1.12° |
3.0° |
0.019 |
0.48 |
0.020 |
0.51 |
175 |
19.8 |
0.28 |
20,000 |
|
87 Short |
1.17° |
3.0° |
0.024 |
0.61 |
0.020 |
0.51 |
346 |
39.1 |
0.55 |
10,000 |
|
100 Short |
1.03° |
3.0° |
0.030 |
0.76 |
0.020 |
0.51 |
565 |
63.8 |
0.90 |
6,000 |
|
125 Short |
1.22° |
3.0° |
0.030 |
0.76 |
0.020 |
0.51 |
755 |
85.3 |
1.21 |
6,000 |
|
137 Short |
1.35° |
3.0° |
0.350 |
0.89 |
0.020 |
0.51 |
1,260 |
142.4 |
2.02 |
6,000 |
|
150 Short |
0.85° |
3.0° |
0.041 |
1.04 |
0.020 |
0.51 |
1,890 |
213.5 |
3.03 |
3,000 |
Note: * Total backlash is approximately 1/3 of windup at max torque – consult Lovejoy Engineering for more information.
Please see downloadable Specialty Products catalog for dimensional data.
For other coupling types: see Coupling Preselection Guide