RS Series – Worm Gearbox
(Equipment / Material)
Model Number: RS Series (sizes 28, 40, 50, 60, 70, 85, 110, 130, 150)
Condition: New
Made in: Italy
Location or Storage Country: Italy
Service Engineering Support: Yes
Warranty: Yes
Price: Call for price
Description:
The RS Series is a range of worm gearboxes specifically designed for universal mounting and applications requiring small or medium power ratings. The gearboxes are manufactured with die‑cast aluminium housings and covers up to size 85, and cast iron from size 110 upwards. The standard worm wheel features a cast iron hub with a phosphor bronze gear rim; for heavy‑duty applications, spheroidal cast iron hubs are available for superior mechanical strength. The gearbox features a hollow output shaft as standard, with optional solid output shaft (single AS or double AD) available. The RS Series offers a modular concept with low maintenance requirements and extended service life. Ratios up to 100:1 are available in single‑stage versions, and two‑stage versions (RS/RS) achieve ratios up to 10,000:1. Most products are available in ATEX‑certified versions.
Overview:
| Type | Worm gearbox (single‑stage and two‑stage) |
| Shaft orientation | Right angle (orthogonal) |
| Sizes | 9 sizes (28, 40, 50, 60, 70, 85, 110, 130, 150) |
| Reduction ratios (single‑stage) | Up to 100:1 |
| Reduction ratios (two‑stage) | Up to 10,000:1 |
| Output torque range (single‑stage) | 20 – 1,680 Nm |
| Output torque range (two‑stage) | Up to 3,020 Nm |
| Max power | 0.09 – 25 kW |
| Housing material | Aluminium die‑cast (sizes 28–85); grey cast iron (sizes 110–150) |
| Worm wheel material | Cast iron hub with phosphor bronze gear rim (standard); spheroidal cast iron hub (optional) |
| Output shaft | Hollow shaft with keyway (standard); solid shaft (AS single or AD double) optional |
| Lubrication | Lifetime lubrication |
| Certifications | ATEX available on request |
| Applications | Conveyors, material handling, general industrial drives |
| Standards | IEC, EU directives |
Varvel SpA (Varvel Group)
Locations: 40053, Italy, Valsamoggia (Bo), Via 2 Agosto 1980, 9 Loc. Crespellano
Main Products/Services: Gearboxes, geared motors, speed variators, coaxial reducers, gear reducers. Product lines: RV (3‑stage bevel helical), RO (3‑stage bevel helical), RN (parallel shaft), RS (worm gearboxes), RT (worm gearboxes), RD (helical), RC (helical), XA (helical pre‑stage), RG (planetary), VR/VS (mechanical variators), FR (helical for specific applications).
Year Established: 1955
