Reduction gearboxes – For speed and torque adaptation

Gearboxes are key components for efficient power transmission in hydraulic systems. They optimally adapt speed and torque and are used in agricultural engineering, mechanical engineering, as well as in industry. Learn more...

Gear Box Group 3 with P.T.O. Shaft CAST IRON
Gear Box Group 3 with P.T.O. Shaft - CAST IRON
  • P.T.O. gear box in cast iron
  • P.T.O. shaft 1 3/8’’
  • transmission: 1:3.8
  • size: group 3
  • max.power transmission: 35kW
  • for gear pumps group 3, europ. version
214,81 EUR
183,60 EUR excl. 17% tax
incl. 17% tax excl. Shipping costs
183,60 EUR excl. 17% tax
Coupling für Hydraulic Pump Gr. 2 / Gear Box / Support Bearing inside cylindrical , 14 teeth
Coupling für Hydraulic Pump Gr. 2 / Gear Box / Support Bearing inside cylindrical , 14 teeth
  • Outer spline 14 teeth, DIN 5482, 25 x 22 Inside: for cylindrical shaft
  • suitable for group 2 pumps, european version with cylindrical shaft
11,38 EUR
9,73 EUR excl. 17% tax
incl. 17% tax excl. Shipping costs
9,73 EUR excl. 17% tax
Hydraulik speed reducer gear box 5550 Berma RT200 front
Hydraulic Speed Reducer - Type 5550
  • Alternative to Berma RT200
  • Torque 2000 Nm
  • Ratio: 1:16.43
  • Input: hydraulic motor with shaft 25 mm, SAE A flange (e.g. CPRM)
  • sturdy design of cast iron
  • higher torque with simple gerotor motor
  • gear box oil recommendation: SAE 80W-90, 3.5 liters

 

590,77 EUR
504,93 EUR excl. 17% tax
incl. 17% tax excl. Shipping costs
504,93 EUR excl. 17% tax
Gear Box Hollow Shaft with Snap Ring with Hydraulic Pump (Gear Pump) group 2 selectable displacement
Gear Box Group 2 with P.T.O. Snap Ring
  • P.T.O. gear box
  • P.T.O. female with snap ring 1 3/8’’
  • transmission: 1:3.8
  • size: group 2
136,96 EUR
117,06 EUR excl. 17% tax
incl. 17% tax excl. Shipping costs
117,06 EUR excl. 17% tax
Gear Box Group 3 with Hollow P.T.O. Shaft and snap ring
Gear Box Group 3 with Hollow P.T.O. Shaft and snap ring
  • P.T.O. gear box
  • hollow P.T.O. shaft 1 3/8’’ with snap ring
  • transmission: 1:3.8
  • size: group 3
175,82 EUR
150,27 EUR excl. 17% tax
incl. 17% tax excl. Shipping costs
150,27 EUR excl. 17% tax
Coupling für Hydraulic Pump Gr. 2 / Gear Box / Support Bearing inside conical 1:5
Coupling für Hydraulic Pump Gr. 2 -- Gr. 3 Gear Box / Support Bearing inside conical 1:8, 18 teeth
  • Outer spline 18 teeth, DIN 5482 35x31
  • Inside: for conical shaft 1:8
  • suitable for group 2 pumps, european version with conical shaft 1:8
15,03 EUR
12,85 EUR excl. 17% tax
incl. 17% tax excl. Shipping costs
12,85 EUR excl. 17% tax
3D scheme Hydraulik speed reducer gear box 5030 Berma RT300 front
Hydraulic Speed Reducer - Type 5030
  • Alternative to Berma RT300
  • Torque 3000 Nm
  • Ratio: 1:29.5
  • Input: hydraulic motor with shaft 25 mm, SAE A flange (e.g. CPRM)
  • sturdy design of cast iron
  • higher torque with simple gerotor motor
  • gear box oil recommendation: SAE 80W-90, 4 liters
715,40 EUR
611,45 EUR excl. 17% tax
incl. 17% tax excl. Shipping costs
611,45 EUR excl. 17% tax
Coupling für Hydraulic Pump Gr. 2 / Gear Box / Support Bearing inside conical 1:5
Coupling für Hydraulic Pump Gr. 3 / Gear Box / Support Bearing inside conical 1:8, 18 teeth
  • Outer spline 18 teeth, DIN 5482 35x31
  • Inside: for conical shaft 1:8
  • suitable for group 3 pumps, european version with conical shaft 1:8
10,12 EUR
8,65 EUR excl. 17% tax
incl. 17% tax excl. Shipping costs
8,65 EUR excl. 17% tax
PTO gearbox BG2/BG3 with stub, mounting for two pumps
PTO gearbox BG2/BG3 with stub, mounting for two pumps
  • Gearbox with PTO
  • PTO stub 1 3/8''
  • gear ratio: 1:3,8
  • Mounting for two pumps
  • Size: Assembly 2 BG2 or Assembly 3 BG3
391,03 EUR
334,21 EUR excl. 17% tax
incl. 17% tax excl. Shipping costs
334,21 EUR excl. 17% tax
product image Hydraulik speed reducer gear box 5535 Berma RT350 front
Hydraulic Speed Reducer - Type 5535
  • Alternative to Berma RT350
  • Torque 3500 Nm
  • Ratio: 1:12.1 
  • Input: hydraulic motor with shaft 25 mm, SAE A flange (e.g. CPRM)
  • sturdy design of cast iron
  • higher torque with simple gerotor motor
  • gear box oil recommendation: SAE 80W-90, 4.5 liters
862,40 EUR
737,09 EUR excl. 17% tax
incl. 17% tax excl. Shipping costs
737,09 EUR excl. 17% tax
Fixing plate PTO gear box group 2 and 3
Fixing plate / welding plate for P.T.O. gear box group 2 and group 3
  • Fixing plate for P.T.O gear box group 2 and group 3
  • Sigot diameter: 82,5 mm
  • Fixing hole diameter: 110 mm
  • Dimensions: 300 x 150 x 8,5 mm
22,37 EUR
19,12 EUR excl. 17% tax
incl. 17% tax excl. Shipping costs
19,12 EUR excl. 17% tax
Coupling für Hydraulic Pump Gr. 3 / Gear Box / Support Bearing inside conical 1:5
Coupling für Hydraulic Pump Gr. 3 / Gear Box / Support Bearing inside conical 1:5, 18 teeth
  • Outer spline 18 teeth, DIN 5482 35x31
  • Inside: for conical shaft 1:5
  • suitable for group 3 pumps, european version with conical shaft 1:5
22,07 EUR
18,86 EUR excl. 17% tax
incl. 17% tax excl. Shipping costs
18,86 EUR excl. 17% tax
product imageHydraulic speed reducer gear box 5540 Berma RT400 front
Hydraulic Speed Reducer - Type 5540
  • Alternative to Berma RT400
  • Torque 4000 Nm
  • Ratio: 1:35.36
  • Input: hydraulic motor with shaft 25 mm, SAE A flange (e.g. CPRM)
  • sturdy design of cast iron
  • higher torque with simple gerotor motor
  • gear box oil recommendation: SAE 80W-90, 5.5 liters
915,08 EUR
782,12 EUR excl. 17% tax
incl. 17% tax excl. Shipping costs
782,12 EUR excl. 17% tax
Coupling für Hydraulic Pump Gr. 3 / Gear Box / Support Bearing inside cylindrical , 18 teeth
Coupling für Hydraulic Pump Gr. 3 / Gear Box / Support Bearing inside cylindrical , 18 teeth
  • Outer spline 18 teeth, DIN 5482, 35 x 31 Inside: for cylindrical shaft
  • suitable for group 3 pumps, european version with cylindrical shaft
35,24 EUR
30,12 EUR excl. 17% tax
incl. 17% tax excl. Shipping costs
30,12 EUR excl. 17% tax
Hydraulik speed reducer gear box 5545 Berma RT500 front
Hydraulic Speed Reducer - Type 5545
  • Alternative to Berma RT500
  • Torque 5000 Nm
  • Ratio: 1:43.6
  • Input: hydraulic motor with shaft 25 mm, SAE A flange (e.g. CPRM)
  • sturdy design of cast iron
  • higher torque with simple gerotor motor
  • gear box oil recommendation: SAE 80W-90, 6 liters

- Please contact us if you are interested in buying this item! -

1.063,81 EUR
909,24 EUR excl. 17% tax
incl. 17% tax excl. Shipping costs
909,24 EUR excl. 17% tax
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Whether PTO gearboxes for driving hydraulic pumps or chain conveyor drives for agricultural and industrial conveyor systems – the robust designs made from steel, aluminum or cast iron ensure long service life. Through their versatility and reliability, hydraulic gearboxes are among the most important components of modern machinery and drive technology.


Hydraulic Transmission Gearboxes & Chain Conveyor Drives – Frequently Asked Questions

What is a hydraulic transmission gearbox and what is it mainly used for?

A hydraulic transmission gearbox serves to adapt speed and torque in hydraulic systems. Our products are used in the following areas:

  • Agricultural technology – e.g. tractors, forestry machines, loader wagons, forage harvesters
  • Construction – e.g. cranes, construction machinery
  • Industry & mechanical engineering – e.g. presses, stationary hydraulic systems
  • Chain conveyor drives – powerful hydraulic conveyor chain and belt drives

What materials are hydraulic transmission gearboxes made from and what sizes are available?

Our gearboxes combine lightweight, corrosion-resistant materials with high-strength construction:

  • Housing: Aluminum (PTO gearboxes) or robust cast iron (chain conveyor drives)
  • Gears: Precision steel for wear resistance
  • Sizes: Various sizes are available, such as size 2, 3, or 4, with different shaft and connection dimensions.

What advantages do hydraulic transmission gearboxes offer?

  • Compact design with high power density
  • High torque transmission even at low input speed
  • Robust, durable construction (steel gears, cast iron housing)
  • Minimal maintenance requirements
  • Flexible mounting options – flange, sliding sleeve or universal joint

How is a hydraulic transmission gearbox mounted and maintained?

Mounting is done via flange or sliding sleeve. Important factors are precise alignment and vibration-proof bolting.

Maintenance: Regular oil changes (first after approx. 50 h, then according to manufacturer specifications), checking oil level and inspecting seals. With gearbox oil SAE 80W-90 or SAE 90 EP, our gearboxes achieve very long service life.

What significance does the gear ratio have in hydraulic gearboxes?

The gear ratio determines the adaptation of speed and torque:

What are the specific features of chain conveyor drive gearboxes?

  • Robust cast iron housing for maximum loads
  • Very high torque output (up to 10,000 Nm)
  • Large reduction ratios for powerful movement
  • Optimized for harsh operating conditions in agriculture & industry

What technical specifications are typical for hydraulic transmission gearboxes?

  • PTO gearboxes: Aluminum housing, up to 20 kW power, speeds up to 2500 RPM, oil capacity approx. 0.35 l
  • Chain conveyor drives: Cast iron housing, torques up to 10,000 Nm, reductions up to 1:40, oil fill 1–6 l SAE 90 EP

What should be considered when selecting the right hydraulic gearbox?

  • Required torque and speed (application range)
  • Gear ratio matching the hydraulic pump
  • Size, flange type, shaft and connection dimensions
  • Hydraulic system pressure and motor specifications
  • Maintenance-friendliness & oil supply