Overview and designations
Designs and options - G, H, EP, A, E, and iFit gear units
As a trusted partner in the field of power transmission, WeDrive specializes in providing tailored, high-quality industrial components for global trade. Recognizing the critical role that reliable gear units and motors play in your production lines, we are dedicated to supplying genuine Rossi solutions—renowned for their durability, Italian engineering excellence, and modular flexibility.
Coaxial and Helical In-line Gear Units
| Designation |
Description |
| iFit-IC |
Helical in-line gearmotors, easy to configure and directly integrate with any industrial machine |
| E Series |
Coaxial gear reducers & gearmotors with universal fixing housing and reinforced output support |
| E.. Foot |
Foot-mounted coaxial gear units, output shaft with key |
| E.. Flange |
B5 flange-mounted coaxial gear units, output shaft with key |
By choosing WeDrive, you gain a partner dedicated to streamlining your procurement process through transparent delivery timelines and professional export handling. We are committed to bridging the gap between world-class Rossi Italian engineering and your local operational needs.
Parallel-shaft Helical Gear Units
| Designation |
Description |
| iFit-IP |
Parallel shaft helical gearmotors, highly interchangeable design |
| G Series Parallel |
Helical gear reducers and gearmotors, parallel shafts |
| GX Series |
Standard and extended centre distance model helical gear reducers equipped with extruder support |
| G.. Foot |
Foot-mounted design, output shaft with key or hollow shaft |
| G.. Flange |
B5 flange-mounted design, hollow shaft with shrink disk or keyway |
Helical-bevel Gear Units
| Designation |
Description |
| iFit-IO |
Bevel helical gearmotors, premium efficiency electric motors integration |
| G Series Right Angle |
Bevel helical gear reducers exalting traditional strength and accuracy |
| H Series |
High-torque helical & bevel helical gear reducers for heavy applications |
| H.. Solid |
Foot/flange-mounted design, solid output shaft with key |
| H.. Hollow |
Hollow shaft with keyway or shrink disk |
Worm Gear Units
| Designation |
Description |
| A Series |
Worm gear reducers & gearmotors with universal mounting foot housing |
| AS Series |
Worm gearmotors with high interchangeability standard fit |
| A.. Solid |
Foot or Flange-mounted design, output shaft with key |
| A.. Hollow |
Hollow shaft with keyway |
Planetary Gear Units
| Designation |
Description |
| EP Series |
Planetary/epicyclic gear reducers & gearmotors for advanced applications |
| EP King |
High torque and combined gear reducers for customized heavy-duty solutions |
| EP Winch |
Planetary gearbox for winches with rotating-housing |
| EPS Series |
Planetary slewing drives offering highest output torque range |
Industrial Gearbox H Series Power Range
The following table shows an overview of the heavy-duty capacities.
| Sizes |
Nominal torque
classes kNm |
Nominal gear ratio ranges |
| Helical |
Bevel-Helical |
Combined |
| H 100 | 7.2 | 7.1 – 100 | 7.1 – 80 | 14 – 80 |
| H 125 | 13.6 | 6.3 – 355 | 12.5 – 355 |
| H 140 | 23.4 | 6.3 – 355 | 12.5 – 355 |
| H 160 | 38.0 | 8.0 – 450 | 16 – 450 |
| H 180 | 61.0 | 6.3 – 355 | 12.5 – 355 |
| H 200 | 83.0 | 6.3 – 355 | 12.5 – 355 |
| H 225 | 117.0 | 7.1 – 400 | 14 – 400 |
| H 250 | 185.0 | 7.1 – 400 | 14 – 400 |
| H 280 | 285.0 | 8.0 – 450 | 16.0 – 450 | - |
| H 320 | 500.0 | 7.1 – 400 | 14.0 – 400 | - |
Gear units - Type Designation
The following example shows the structure of the modular Rossi type designation:
Example: H RCI 250 UO3A
| H |
Rossi Industrial gear unit series (High-torque) |
| RCI |
Gear unit design:
- I = Helical gear unit
- RCI = Bevel-helical gear unit
- EP = Planetary gear unit
|
| 250 |
Gear unit sizes: e.g., 100 – 400 |
| UO3A |
Housing & Mounting design:
- UO3A = Universal housing design, standard mounting
- /F = Flange mounting
|
For any detail, you can download the full Rossi catalog on our Home page.
