Worm Gearbox RT/RT Series

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The RT/RT Series of worm gearboxes are characterized by the coupling between two RT Series gearboxes, in order to achieve higher reduction ratios than those achievable with a single worm gearbox or with the coupling between a worm gearbox and an XA pre-stage.

Main Components

• Input and output oil seals in NBR
• Housing and covers in die-cast aluminum (till size 85) and grey cast iron (size 110)
• Worm wheel in bronze
• Bearings with a ball or conical roller
• Input flanges in die-cast aluminium
• Motor flexible coupling
• Gears in cemented and hardened alloy steel
• Support hub in grey cast iron
• Synthetic oil for lifetime lubrication of the gears
• RCA oil seal in NBR
• Worm shaft in alloy steel


• Low maintenance and management costs
• Modular concept
• Extended lifetime with excellent reliability
• Easy installation and maintenance
• Long-life lubrication
• Versatility of use

For Application Sectors

• Silicone, Viton, or special seals for high/low temperatures and the food & beverage sector
• Anodization for chemical and ship-building/marine sectors
• Special lubricants for high/low temperatures and the food & beverage sector
• Non-standard breather plugs for high/low temperatures
• Special paint finishes for chemical, ship-building/marine, and food & beverage sector
• ATEX version for potentially explosive environments For NEMA and servo motors
• Flanges and couplings for servomotors
• Output holes in inches