Fine Cyclo W-Series
High precision gearbox with extremely large hollow shaft & built-in pre-stage
High load precision gearbox with huge hollow bore and integrated pre-stage.
- Less than 1 arcmin Lost Motion
- Ideal for robot base axes
- Input and output on same side
- Hollow shaft rotates with output speed
- Additional ratios possible on request (different pre-stage)
- Motor coupling and adapter on request
| Zero Mechanical Backlash | |
| Lost Motion | <1 arcmin |
| Number of Sizes | 2 |
| Reduction Ratios | depending on pre-stage |
| Nominal Torque | 2453 Nm / 4000 Nm |
| Acceleration Torque | 6130 Nm / 10000 Nm |
| Max. Momentary Peak Torque | 9810 Nm / 20000 nm |
| Output Speed | 30 rpm / 25 rpm |
| Max. Bending Moment | 9565 Nm / 22000 Nm |
| Bending Stiffness | up to 15700 Nm/arcmin |
| Max. Axial Load | 13734 N / 29400 N |
| Torsional stiffness | up to 1960 Nm/arcmin |
Key Product Facts
Advantages of Fine Cyclo W-Series
Main dimensions and mass
| Size | Length L [mm] | Diameter G [mm] | Diameter D [mm] | Diameter H [mm] | Mass [kg] |
|---|---|---|---|---|---|
| W55 | 129.5 | 355 | 258 | 90 | 68 |
| W70 | 175.5 | 470 | 390 | 138 | 95 |
Design of input stage on customer request
Torque and Speed main data
| Size | Nominal output torque (1) [Nm] |
Max Accel. / decel. torque [Nm] | Max output speed [rpm] |
|---|---|---|---|
| W55 | 2453 | 6130 | 30 |
| W70 | 4000 | 10000 | 25 |
(1) at output speed n2=15 rpm
Output bearing capacity
| Size | Max permissible bending moment [Nm] | Max permissible axial load [N] |
|---|---|---|
| W55 | 9565 | 13734 |
| W70 | 22000 | 29400 |
Available ratios
| Size | Ratios |
|---|---|
| W55 | 64 |
| W70 | 87.3 |
Additional ratios 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
Ready to Design Your Zero Backlash Gearbox?
Cycloidal Gearbox design is simple. with our online Product Configurator. This tool streamlines the selection process, enabling you to build a best motion control product for your specific application. Choose Sumitomo as your go-to Cycloidal Gearbox manufacturer.