BB Series - Reducers for Mixers

Sealed industrial helical and bevel gear reducers

The BB series mixer gearboxes are specially designed with reinforced sealing systems for critical environments where oil leaks are unacceptable. Ideal for the food, pharmaceutical, and wastewater treatment industries, these gearboxes offer exceptional reliability in heavy-duty mixing applications.

Torque range: 11,000 - 70,000 Nm

Reduction ratio: 12 - 431

Configurations: 7 standard sizes

Protection rating: IP65 - IP69K

Main features

  • Triple sealing system with special seals and integrated leakage reservoir
  • Reinforced output shaft bearings for high radial and axial loads
  • Precision-machined GG25 cast iron housing for a perfect seal
  • Hardened and ground helical and bevel gears for optimal transmission
  • Integrated labyrinth seal for protection against dust and abrasive particles
  • Optional oil level sensor for continuous monitoring
  • Modular design allowing for different mounting configurations

Product range

The BB series comprises 7 different sizes covering a torque range of 11,000 to 70,000 Nm, specially designed for heavy-duty mixing applications in demanding environments.

Detailed technical data

Setting Value Unit
Nominal torque 11,000 - 70,000 Nm
Reduction ratio 12 - 431 -
Input power 4 - 200 kW
Degree of protection IP65, IP66, IP67, IP69K -
Serving temperature -20°C to +120°C °C
Mechanical efficiency ≥ 96% -

Size chart

Reduced size Report [i] Nominal torque [Nm] Output shaft [mm]
B062 16-87 11,000 Ø110/210
B072 12 - 323 19,000 Ø120/210
B082 15 - 410 24,000 Ø130/250
B092 12 - 348 29,000 Ø150/250
B102 15 - 431 36,000 Ø160/300
B112 12 - 320 55,000 Ø170/300
B122 16 - 412 70,000 Ø180/300

Technical advantages

Characteristic Profit
Triple sealing system Complete elimination of oil leaks in sensitive environments
Reinforced bearings Ability to withstand extreme radial and axial loads
Integrated leak reservoir Monitoring and collection of potential micro-leaks
Labyrinth joint Optimal protection against dust and abrasive particles
Hardened gears Extended lifespan and increased wear resistance

Available options

  • Oil level sensor with alarm
  • Anti-corrosion coating for humid environments
  • Sanitary finishing for the food and pharmaceutical industries
  • Air or water cooling system
  • Custom assemblies according to application
  • Complete instrumentation (temperature, vibration)

Areas of application

The BB series gearboxes are specifically designed for mixing applications in demanding environments:

  • Food industry - Dough mixers, fermentation tanks, kneaders
  • Water treatment - Sludge mixers, chemical mixers
  • Pharmaceutical industry - Reaction tanks, aseptic mixers
  • Chemistry and petrochemistry - Reactors, polymer mixers
  • Environment - Settling tanks, digesters, aeration basins

Competitive advantages

Absolute waterproofing

Our patented triple-sealing system guarantees the total absence of oil leaks, essential in the food and pharmaceutical industries where contamination is critical.

Exceptional robustness

With reinforced bearings and hardened gears, BB reducers withstand the most severe operating conditions with an extended service life.

Industrial versatility

7 standard sizes covering a torque range of 11,000 to 70,000 Nm allow the reducer to be precisely adapted to each specific application.

Entry type

BTB Series

With full entrance tree

BKB Series

With IEC B5 motor flange

BVB Series

With IEC B5 flange and motor

Output type

BB0A Series 

Drywell with hollow output shaft

BB1A Series 

Drywell with full output shaft 

BBSA Series 

Drywell with fret 

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