Electric Motor Gearboxes

Worm Gearboxes

Suitable Applications for Worm Gear Boxes

electric worm gearboxes Our worm gear boxes are constructed with an air tight and dust proof aluminium gear casing (sizes 025-090) and benefit from being able to be installed in open air. No extra servicing is required for our worm gear boxes which are supplied with synthetic oil and are sealed for life. Sizes 110-150 are lubricated with mineral oil and supplied with breather, drain and filler plugs.

Custom Specification Gear Boxes

If you require custom specification worm gear boxes, we have the expertise and experience necessary to custom spec worm gear boxes which match your bespoke requirements. We work from supplied drawings and or individual specifications. For more info, click here to contact us directly via our contact form.

Full Worm Dimensions - Click here for product guide

Mechanical Variators Gearboxes

electric variators gearboxes Our high performance mechanical Variators Gearboxes have been designed and manufactured to maximise their operational lifespan, whilst allowing them to function in cooler and smoother conditions. Our mechanical speed Variators are available in a range of motor power and speed specifications for use in all kinds of industry such as conveyor systems, food process machinery, machine tooling and sugar mills.

Our Variators feature fully sealed enclosures, which allow for service free and safe installations and are produced with light-weight aluminium casing up to size UDL 0.75. Key features include output flanges which adhere to IEC standard sizes, suitable for worm gearbox units as well as offering high precision adjustments, steady performance, low noise and temperature increase.

Mechanical Variators control the speed variations needed when controlling industrial machines with gear boxes and can control both increases and decreases in speed dependent upon specific process requirements.

Mechanical Variators Dimensions - Click here for product guide

Varvel RD Range Gear Staged Gearboxes

electric worm gearbox varvel The series RD helical gearboxes feature a one-piece cast housing complete with inner support to accommodate 2 or 3 gear stages into the same casting. Manufactured to the latest ISO engineering design specifications, the housing is checked by computer aided structural analysis for deflection and stress distribution.

Significant strains caused by the effects of torque and external loads do not deflect the monolithic ribwork of the housing, which significantly improves the integrity of the sealed surfaces.

The series RD helical gearboxes are manufactured in B3 base mounted configuration. They can be easily converted to B5 flange mounted by fitting of the appropriate additional adaptor flange.

Single setup machining on state of the art CNC production lines, the most recent calculation techniques and process control gives superior operational reliability, maximum output torques, high overhung and thrust load capacity and long working life times.

The series RD are made up in 7 sizes and output torques of 20Nm to 2500Nm are available.

Varvel RD Range Dimensions - Click here for product guide

RS/RT Range Varvel Worm Gearboxes

Single worm gear boxes

electric worm gearboxes varvel The worm gearboxes, RS and RT series, specifically designed for universal mounting, are manufactured with die cast housing and covers in aluminium up to the size 85 and cast iron from the size 110.

Torques listed in the selection tables are output torque values for the specific size and motor powers are always referred to at 1400rpm. Gearboxes are supplied filled with synthetic long life oil.

Helical worm gear boxes

The gearboxes, RA and TA series, made up of an independent single stage helical gearbox FXA fitted to a standard FRS or FTR gearbox, allow greater output torque and higher efficiency than the FRS and FRT gearbox with equivalent ratios.

Two stage worm gear boxes

The gearboxes, RS/RS and RT/RT series, are made up of two gearboxes RS or RT and offer a full selection of high reduction ratios to obtain the very low output speeds.

RS/RT Range Varvel Worm Dimensions - Click here for product guide

Varvel Bevel Helical Gearboxes

electric worm gearboxes varvel The gearboxes, series RN, RO, RV are manufactured with a common housing that allows the same footprint for the three versions and are designed according to latest ISI engineering specifications with the help of computer aided structural analysis for displacement and stress field.

The monolithic framework does not deflect under the effect of torque and external loads with effective results on sealing surfaces.

The gearboxes RN, RO, RV are manufactured of pressure die cast for the first 3 sizes and of cast iron for the others. The shaft mount version, common to the three styles, allows the flange mount B5 conversion by simply fitting one of the many output flange options available.

The series RN, RO, RV are made in 6 sizes with output torques between 100 to 3400 Nm.

Varvel Bevel Helical Dimensions - Click here for product guide