Electric motors and worm gearboxes for industrial machinery
Bernati manufactures low-voltage IEC motors from 0.09 to 200 kW in aluminium and cast-iron frames, and worm gearboxes from size 025 to 150. Technical ranges and documentation are published here; variants and purchasing are handled by authorised distributors.
Bernati motors and gearboxes are supplied worldwide through our distributor, with Europe as the main market.
Product families
Electric motors
Squirrel-cage asynchronous motors in IEC frame sizes 56 to 315, from 0.09 to 200 kW, in aluminium or cast-iron frames. Three-phase, single-phase and DC-brake versions, with IE1, IE3 and IE4 efficiency classes on the three-phase ranges.
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Worm gearboxes
Modular worm gear reducers with B5 or B14 input flanges for direct IEC motor coupling, or with solid input shaft. Two series: BG, square housing from size 025 to 150 and up to 1 610 Nm; BV, compact housing from size 030 to 090 and up to 350 Nm.
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Accessories
Output flanges, solid output shafts, torque arms, input flanges, connection kits, reduction bushings and feet for Bernati gearboxes; flanges, feet and covers for Bernati motors. Accessories are normally supplied loose; Bernati can supply them fitted to the unit on request.
Read moreProduct series
Each series page describes the range, the sizes available and the technical characteristics, and links to the catalogue and the distributor.
three-phase motors, aluminium frame
Three-phase IEC motors in aluminium frames 56 to 160, IE1 / IE3 / IE4, 0.09 – 22 kW.
- IEC frame sizes56 – 160
- Rated power (kW)0.09 – 22
- Efficiency classesIE1, IE3, IE4
three-phase motors, cast-iron frame
Three-phase IEC motors in cast-iron frames 80 to 315, IE3 / IE4, 0.75 – 200 kW.
- IEC frame sizes80 – 315
- Rated power (kW)0.75 – 200
- Efficiency classesIE3, IE4
three-phase brake motors, aluminium frame
Three-phase motors with an electromagnetic DC brake, frames 63 to 160, 0.09 – 18.5 kW.
- IEC frame sizes63 – 160
- Rated power (kW)0.09 – 18.5
- Poles2, 4, 6
single-phase motors, aluminium frame
Single-phase capacitor-run motors, frames 56 to 100, 0.09 – 3.0 kW, 230 V.
- IEC frame sizes56 – 100
- Rated power (kW)0.09 – 3.0
- Poles2, 4, 6
single-phase motors, dual capacitor
Single-phase motors with start and run capacitors, frames 63 to 112, 0.12 – 4.0 kW, 230 V.
- IEC frame sizes63 – 112
- Rated power (kW)0.12 – 4.0
- Poles2, 4, 6
worm gearboxes, square housing
Square worm gear reducers, sizes 025 to 150, ratios 7.5 to 100, up to 1 610 Nm.
- Sizes025 – 150
- Reduction ratios7.5 – 100
- Output torque≤ 1 610 Nm
worm gearboxes, compact housing
Compact worm gear reducers, sizes 030 to 090, ratios 7 to 100, up to 350 Nm.
- Sizes030 – 090
- Reduction ratios7 – 100
- Output torque≤ 350 Nm
What defines a Bernati motor or gearbox
IEC-standard construction
Frame sizes, mountings and outputs to IEC 60034 and IEC 60072, so Bernati units are dimensionally interchangeable with other IEC products.
Efficiency classes to IEC 60034-30-1
Three-phase ranges in IE1, IE3 and IE4; IE3 and IE4 motors are fitted with a PTC thermistor.
Modular gearboxes
Two worm gearbox series with IEC flanges, solid shafts, pre-stages and combined units built from common housings and accessories.
Documented ranges
Complete catalogues with ratings, dimensions, load tables and product-code keys for every series.
Energy efficiency
Motors of 0.75 kW and above must meet at least IE3 under IEC 60034-30-1. Bernati's BMT and BCT ranges are available in IE3 and IE4.
Technical resources
Official catalogues for motors and gearboxes, with ratings, dimensions, load tables and product-code explanations.
About Bernati
Bernati is part of an industrial group established in 1981 and focused on precision transmission components and energy-efficient electric motors, with design, production and commercial teams in Europe and Asia.
About Bernati