Worm gear reducers with full input shaft

Worm gear reducers with full input shaft

Worm gearbox JRST-series

The JRST series are worm gear reducers with full input shaft. The input torque of the worm shaft can take place with the aid of a hand wheel, or with a rotating drive shaft which is connected via a coupling. In addition, a second shaft end is also possible. This makes it possible to link several drives for a synchronized movement.

Due to the square design, it is possible to simply mount this worm gearbox on the bottom, side or top. In addition, it is also possible to mount the gearbox by means of an output flange or a torque arm.

Sizes from 25 up to 150.

Torques of 14Nm up to 3.000Nm.

Output shaft sizes from 11mm up to 50mm.

Input shaft sizes from 9mm up to 35mm.

Ratios from i = 7.5 up to i = 100.

Housings from sizes 30 up to 90 are made of aluminum. Housings of 110, 130 and 150 are made of cast iron.

Sizes 30 up to 90 are filled with synthetic oil and appropriate for all mounting positions.

Material wormgear: bronze Cu Sn12 Ni2 (UNI7013-10), material worm shaft hardened steel and ground profile ZI (UNI4760).

Load capacities in accordance with: ISO.14521, DIN.3996, BS 721, AGMA 6034, ISO 6336, DIN 3990, DIN 743, ISO 281.

Coating: sizes 30 up to 90 with powder coating, 110-150 features single-component sprayed paint.

A variety of pre-stage reducers are possible.

Protective cover for output shaft, torque arm, output flange, torque limiter, special oils, ATEX version, reinforced bearings, etc.

RANGEInput shaft sizeOutput shaft sizeM2 maxRatiosAlternative MotovarioAlternative STM


EURONORM DRIVE SYSTEMS +31 (0)252 228850

Engineering Portal

E-mail address


Contact details