Fine Cyclo UA-Series
Double stage high precision high torque density gearbox
Spur gear pre-stage and three or four (UA115) eccentrics providing high transmission accuracy, minimum speed ripples and minimum vibration.
The new UA series offers improved performance in torque density, positioning accuracy, and movement accuracy. Additionally, the Fine Cycle UA series has improved output bearings, and is highly efficient even at low speeds.
- Less than 0.5 arcmin Lost Motion
- Ideal for applications with traverse movements
- Highest Torque density available on the market
- Highest overall available Torque
- High input and output speeds possible
- Additional ratios available on request
Variants:
- Basic design to be fully integrated in robotic arms
- Fully sealed version including motor flange available
| Zero Mechanical Backlash | |
| Lost Motion | <0.5 arcmin |
| Number of Sizes | 8 |
| Reduction Ratios | 60:1 to 283:1 (availability depending on size) |
| Nominal Output Torque | 174 Nm up to 16685 Nm |
| Acceleration Torque | 625 Nm up to 30000 Nm |
| Max. Momentary Peak Torque | 1250 Nm up to 60000 Nm |
| Output Speed | up to 60 rpm |
| Max. Bending Moment | 883 Nm up to 44000 Nm |
| Bending Stiffness | up to 25000 Nm/arcmin |
| Max. Axial Load | 3924 N up to 29000 N |
| Torsional stiffness | up to 6000 Nm/arcmin |
Key Product Facts
Advantages of Fine Cyclo UA-Series
Up to 88000 Nm Momentary Bending Moment
Main dimensions and mass
| Size | Length L (1) [mm] | Diameter G [mm] | Diameter D [mm] | Diameter d1 max (2) [mm] | Mass (1) [kg] |
|---|---|---|---|---|---|
| UA15 | 104 | 133 | 90 | 28 | 8.5 |
| UA25 | 109 | 165 | 110 | 28 | 13 |
| UA35 | 130 | 189 | 130 | 38 | 20 |
| UA45 | 138 | 224 | 155 | 38 | 30 |
| UA55 | 158.5 | 244 | 174 | 42 | 43 |
| UA65 | 170 | 295 | 210 | 42 | 55 |
| UA80 | 194 | 325 | 238 | 42 | 90 |
| UA115 | 272 | 570 | 400 | on request | 260 |
Diameter G = Casing diameter
Diameter D = Output major diameter
Diameter d1 = Input shaft diameter
(1) dependent upon the input design
(2) please contact us for alternative diameters
Torque and Speed main data
| Size | Nominal output torque (1) [Nm] | Max Accel. / decel. torque [Nm] | Max output speed [rpm] |
|---|---|---|---|
| UA15 | 250 | 625 | 60 |
| UA25 | 500 | 1250 | 50 |
| UA35 | 900 | 2250 | 40 |
| UA45 | 1320 | 3300 | 30 |
| UA55 | 2000 | 5000 | 30 |
| UA65 | 3430 | 8575 | 30 |
| UA80 | 5000 | 12500 | 25 |
| UA115 | 12000 | 30000 | 25 |
(1) at output speed n2=15 rpm
Output bearing capacity
| Size | Max permissible bending moment [Nm] | Max permissible axial load push / pull [N] |
|---|---|---|
| UA15 | 883 | 3924 |
| UA25 | 1666 | 5194 |
| UA35 | 2156 | 7840 |
| UA45 | 3430 | 8820 |
| UA55 | 4000 | 10780 |
| UA65 | 7056 | 11000 |
| UA80 | 7056 | 13734 |
| UA115 | 44000 | 29000 |
Available ratios
| Size | Ratios |
|---|---|
| UA15 | 60 / 78 / 116 / 139 / 154 / 171 |
| UA25 | 78 / 88 / 115 / 124 / 145 / 173 |
| UA35 | 82 / 87 / 121 / 152 / 166 |
| UA45 | 82 / 99 / 121 / 130 / 152 / 166 |
| UA55 | 81 / 97 / 126 / 145 / 169 / 241 |
| UA65 | 89 / 121 / 136 / 144 / 163 / 171 / 199 / 249 |
| UA80 | 93 / 103 / 122 / 155 / 166 / 190 / 239 / 283 |
| UA115 | depending on prestage |
Above technical specifications are intended for rough preselection only.
How often does the Fine Cyclo® require maintenance?
Customers should never open the Fine Cyclo. The reduction stages of the FA-Series reducers are lubricated for life. Additionally, their internal components are matched in such a way that makes re-assembly very difficult for untrained personnel. If desired, customers may return Fine Cyclos to Sumitomo for grease replenishment after 5 years in order to increase service life.
Related Fine Cyclo® products
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