Skip to main content
Danfoss

Rugid gear motors

Where to buy
Rugid CI fan drive gear motor Gr 2.5

Rugged, dependable performance under high pressure

  • Available in aluminum and cast iron design
  • 20% smaller than conventional gear products, high power density in a small package for easy installation in optimized machines
  • Thrust plate design for high efficiency over a wide temperature range
  • Teflon® coated bushings for extended life under extreme temperature and pressure conditions
  • Viton® seals are standard to sustain higher temperature and fluid capabilities
  • Broad range of shaft drives, integrated valves, and side or rear port options gives great flexibility in system design.
  • Cast iron design for maximum efficiency, dependability, durability and reliability in performing continuous operation in heavy duty applications with severe duty cycles and temperature conditions, all within the industry leading package size and power density.
  • Aluminum design is a perfect fit for agricultural and industrial applications thanks to its compactness and broad range of options available

For fan drive applications, a variety of valve options are offered for great flexibility. This allows for integrated reversing, proportional relief, fixed relief, and anti-cavitation valves.

Specifically designed for demanding mobile equipment applications where maximum performance is required at peak power levels and operating temperatures. Our cast iron motors ensure great productivity and excellent fuel efficiency along with reduced vehicle emissions.

Features and benefits

  • Thrust plate design for high efficiency over a wide temperature range

  • Teflon® coated bushings for extended life under extreme temperature and pressure conditions

  • High strength cast iron construction for efficient performance in continuous operation

  • Easy installation in optimized machines due to compact, power-dense design

  • Viton® seals are standard to sustain higher temperature and fluid capabilities

  • A variety of integrated valve options

Technical specifications
Ratings Units 14 17 19 21 23 25 29 32 36 38 41 45
Displacement cm3/rev
[in3/rev]		 14.9
[0.91]		 17.6
[1.08]		 19.9
[1.22]		 22.4
[1.37]		 23.2
[1.42]		 26.2
[1.6]		 30.6
[1.87]		 34.4
[2.1]		 38.6
[2.36]		 40.9
[2.5]		 42.9
[2.62]		 48.3
[2.95]
Rated pressure bar
[psi]		 276
[4000]		 276
[4000]		 276
[4000]		 276
[4000]		 276
[4000]		 276
[4000]		 276
[4000]		 276
[4000]		 276
[4000]		 276
[4000]		 241
[3495]		 210
[3045]
Peak pressure bar
[psi]		 303
[4400]		 303
[4400]		 303
[4400]		 303
[4400]		 303
[4400]		 303
[4400]		 303
[4400]		 303
[4400]		 303
[4400]		 303
[4400]		 265
[3843]		 231
[3350
Speed at rated pressure Max 
min-1
(rpm)		 3400
[600]		 3400
[600]		 3400
[600]		 3400
[600]		 3400
[600]		 3400
[600]		 3400
[600]		 3400
[600]		 3400
[600]		 3400
[600]		 3000
[600]		 3000
[600]
Start speed at 1000 PSI Min
min-1
(rpm)		 400 400 400 400 400 400 400 400 400 400 400 400
Weight kg
[lb]		 8.46
[18.7]		 8.53
[18.8]		 8.66
[19.1]		 8.80
[19.4]		 8.94
[19.7]		 9.07
[20.0]		 9.38
[20.7]		 9.53
[21.0]		 9.84
[21.7]		 9.93
[21.9]		 10.16
[22.4]		 10.43
[23.0]
Mass moment of inertia of internal rotating components x10-6 kg•m2
[x10-6 lbf•ft2]		 113
[83]		 127
[94]		 138
[102]		 146
[107]		 156
[115]		 172
[127]		 191
[141]		 206
[152]		 228
[168]		 239
[176]		 255
[188]		 276
[204]
Theoretical torque at rated pressure N•m
[lbf•ft]		 62.6
[46.2]		 65.7
[48.5]		 73.4
[54.2]		 79.2
[58.4]		 87.0
[64.2]		 98.2
[72.4]		 112.1
[82.7]		 122.9
[90.7]		 139.6
[102.9]		 146.9
[108.3]		 138.4
[102.1]		 132.4
[97.6]
Theoretical power at rated speed kW
[hp]		 22.3
[29.9]		 23.4
[31.2]		 26.1
[34.9]		 28.2
[37.6]		 31.0
[41.3]		 35.0
[46.6]		 39.9
[53.2]		 43.8
[58.4]		 49.7
[66.3]		 46.1
[61.1]		 43.5
[58.0]		 41.6
[55.5]
Case drain pressure bar
[psi]		 5
[72.5]		 5.0
[72.5]		 5.0
[72.5]		 5.0
[72.5]		 5.0
[72.5]		 5.0
[72.5]		 5.0
[72.5]		 5.0
[72.5]		 5.0
[72.5]		 5.0
[72.5]		 5.0
[72.5]		 5.0
[72.5]

Documents

Documents
Type Name Language Valid for Updated Download File type
Service guide Gear Pumps and Motors Packaging and Recycling Information English Multiple 11 May, 2023 428.8 KB .pdf
Service guide Gear Pumps and Motors Packaging and Recycling Information Italian Multiple 11 May, 2023 437.3 KB .pdf
User guide Rugid Aluminum Group 2 and 3 Pumps and Motors Technical Information English Multiple 17 Feb, 2023 8.4 MB .pdf
User guide Rugid Cast Iron Group 2.5 Motor Technical Information English Multiple 17 Feb, 2023 4.3 MB .pdf
Data sheet Rugid Cast Iron Group 2.5 Motor with Speed Sensor Data Sheet English Multiple 17 Feb, 2023 548.4 KB .pdf

Related products

Aluminum gear motors including fan drives
GearMe gear motors including fan drives

Our GearMe gear motors are the ideal choice for a wide range of applications - from small to medium and large off-highway vehicles. Ultracompact fan drives are also available. They are ideal when both compactness and high efficiency are required.

Rugid gear motors
Rugid gear motors

Specifically designed for demanding mobile equipment applications where maximum performance is required at peak power levels and operating temperatures, our cast iron gear motors including fan drives ensure great productivity and excellent fuel efficiency, along with reduced vehicle emissions.
Lumi aluminium gear motors

A solid product line for standard applications with unique design featuring cast iron flange and end cover for optimum reliability. Suitable for wide variety of applications that demands standard motor performance.

Rugid gear pumps from Danfoss
Rugid gear pumps

Our Rugid gear pumps are 20% smaller than conventional gear products, and give great power density in a small package. Typical applications are skid steer loaders and heavy-duty machines.

GearMe gear pumps
GearMe gear pumps

Our gear pumps are robust and reliable. They are the ideal choice for a wide range of applications. From small to medium and large off-highway vehicles, as well as for industrial applications. Low noise gear pumps are also available. They are the ideal solution for steering applications in cab-equipped mobile machines and for electric/hybrid machines.

Related applications

Construction
Construction

Space is limited on construction sites, and there are people working everywhere. Contractors need machines that can safely maneuver in a tight spot. At the same time they still need to be powerful enough to get the job done. At Danfoss, we deliver the components, software, and controls that enable your machines to run safely, efficiently and effectively.

Crane and material handling
Crane and material handling

Cranes and other large handling machines are required to operate within very specific load ranges. Danfoss provides pressure transmitters that supply load limiting systems with crucial data, safeguarding your equipment, your load, and your operator.

Hydraulic solutions for forestry machines
Forestry

Rough, sloping terrain and cramped working conditions call for robust and reliable forestry machines. We make sure you can manage everything from cutting trees and transport to preparing the forest floor for replanting. We have the smart hydraulic solutions your machines need for precise and efficient forestry operations.

Heavy machinery
Heavy machinery

Think about the heaviest challenges in the open mining, road building and construction industry. Tasks such as cutting through rock or the Arctic permafrost; compacting thick layers of hot asphalt. As well as lifting huge, prefabricated wall panels into place.

Lawn and turf
Lawn and turf

Lawn and turf machines must adapt to their surroundings and the season – becoming sweepers or snow blowers as required. At Danfoss, we make hydraulic solutions to provide that flexibility and ensure safe and efficient operation.

Road building
Road building

Advanced hydraulic systems from Danfoss deliver the machine performance that ensures road builders can meet their deadlines.

Related solutions

Fan drives
Fan drives

Optimize fan drive solutions with the Reverse Displacement Motor (RDM) and the new Series 45 Fan Drive Control (FDC). The RDM is a breakthrough in technological innovation and engineering.

Thermal management
Thermal management

Danfoss is here to help. With our complete fan drive solution, Danfoss is able to help you maximize available engine power. As well as, decrease fuel costs and increase operator productivity.

PowerSource

Visit PowerSource

Visit PowerSource

Visit PowerSource to view product specifications, literature and helpful tools like product configurators, 2D/3D models, and more.

Explore more