Worm gearbox RA series
right angle2 - 5 kNmhollow-shaft

worm gearbox
worm gearbox
worm gearbox
worm gearbox
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Shaft orientation
right angle
2 - 5 kNm
Other characteristics
hollow-shaft, modular, for food industry machinery, two-stage, for the chemical industry, for machine tools, motor, ATEX
Rotational speed

1,400 rpm, 1,800 rpm (8,796.46 rad.min-1)


Min.: 0.5 kW (0.68 hp)

Max.: 24.9 kW (33.85 hp)


The RA Series of worm gearboxes are characterized by the coupling between a RS Series’ gearbox and a XA Series’ pre-stage, in order to achieve higher reduction ratios than those achievable with a single worm gearbox. Main Components • Input and output oil seals in NBR • Housing and covers in die cast aluminium (for the pre-stage and till size 85 of the RS gearbox) and grey cast iron (sizes 110, 130 and 150 of the RS gearbox) • Worm wheel in bronze • Bearings with 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 Plus • Low maintenance and management costs • Modular concept • Extended lifetime with excellent reliability • Easy installation and maintenance • Long life lubrication • Versatility of use Special Solutions For Application Sectors • Silicone, Viton or special seals for high/low temperatures and food & beverage sector • Anodization for chemical and ship-building/marine sectors • Special lubricants for high/low temperatures and 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 • Input couplings for NEMA motors


*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.