Twin Disc
- Vessels
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Engines / equipment
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Propulsion engines
- Allen Diesel
- B&W Alpha
- Pegaso Guascor
- MTU
- Iveco Aifo
- Deutz
- Detroit Diesel
- DAF
- Volvo Penta
- Gardner
- Cummins
- Valmet
- MWM
- Bergen Diesel
- Callesen Diesel
- Grenaa Motor Fabrik
- MAN B&W
- Hyundai
- Caterpillar
- Lister Blackstone
- MaK
- GMT
- Mirrlees Blackstone
- Nohab Polar
- Paxman Diesel
- MAN
- Mitsubishi
- Scania
- Stork Werkspoor
- Wärtsilä
- Stork Wärtsilä
- Yanmar marine engines
- Mercedes marine diesel
- Wizeman marine diesel
- EMD
- Baudouin
- Normo Diesel
- Sulzer
- Ruston
- Ford
- De Industrie
- Crepelle
- Wärtsilä Wichmann 28
- MWM Diter
- SKL
- Buckau Wolf
- Isuzu
- Nogva
- John Deere
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Marine gearboxes
- Rapp Fjellhamar
- Volda
- Finnøy
- Liaaen
- Mekanord
- Lohmann & Stolterfoht
- Hytek
- Kuypers Gears
- Guascor
- Twin Disc
- Pay & Brinck
- B&W Alpha
- Reintjes
- Ulstein propeller
- Masson Marine
- Mirrlees Blackstone
- Hjelset
- Heimdal Propulsion
- RENK
- Norgear - Kumera
- Zamech
- Fernholdt & Giertsen
- ZF Marine
- Lister Blackstone
- Rhenania
- Nico
- Engrenages et Reducteurs
- Tacke
- Capitol marine gear
- Korsør
- Callesen gear coupling
- Nogva Heimdal
- SCG Self-Changing Gears
- Generators
- Air compressor
- Offshore - installation - decommission - salvage
- Hydraulic pump
- Water Pumps
- Three Screw Pumps
- Heat exchangers
- Electric motors
- Generator sets
- B&W Villares
- Ship interior
- Oily water separator
- Transformers
- Electronic equipment
- Hydraulic powerpacks
- Engine Control Systems
- Oil separator
- Governor / actuator
- Deck equipment
- Filter
- Hydraulic motor
- Cooling compressors
- Propeller equipment
- Tank cleaning
- Oil pumps
- Couplings
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Propulsion engines
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Spare parts
- MTU original spare parts
- Detroit spare parts
- MAN B&W spare parts
- MaK spare parts
- Nohab Polar spare parts
- GMT spare parts
- Deutz spare parts
- B&W Alpha spare parts
- MWM spare parts
- Scania spare parts
- Callesen spare parts
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Electric and Electronic spare parts
- ABB
- Apollo Fire Detectors
- AUTO-MASKIN
- Beijer Electronics
- Boolean
- Bosch
- Brunvoll
- CAREL
- Danica Supply
- danlamp
- DEIF
- Denison Hydraulics
- Dräger
- Elmatic
- ELTEK
- Emerson
- EMRI
- ESSER by Honeywell
- F. K. SMITH AS
- Fire alarm systems
- FSG Fernsteuergeräte
- Fuji Electric
- Furuno
- HELITRON
- Hirschmann
- Hydraulic Brattvaag
- IDEC
- Intelligent Instrumentation
- JRC
- JRCS
- JUNG-A MARINE
- KARISMAR
- Kongsberg
- Kongsberg Autronica
- Kongsberg KaMeWa
- Leroy-Somer
- Lexmark
- lilaas
- Lilley & Gillie
- MAR-EL
- MARINEX
- Mean well
- Merlin Gerin
- MGV Stromversorgungen
- Mitsubishi
- Moxa
- Norselight
- O.Øverland AS
- Opto 22
- Paab
- Pelco
- Penny & Giles
- PEP Modular Computers
- Phoenix Contact
- PHONTEC
- Pikotec OY
- Polyamp
- PR Electronics
- Praxis Automation
- Raytheon
- Rexroth
- RHEINTACHO
- Robertson
- Rolls-Royce
- Saia-Burgess
- SCHOTTEL
- SELCO
- Semikron Danfoss
- Siemens
- SMART Automation
- STK
- SYSLOGIC EUROLOG
- Terasaki
- TOKIMEC
- TT Electronics
- Ulstein Marine
- Various electronic spares
- Vickers
- Vicor Corporation
- Wago
- Wärtsilä
- Wika
- Releco
- Telemecanique (Schneider Electric)
- MTI / TEC Automatismes
- Omron
- Gylling Teledata
- Bergen Diesel / Rolls-Royce Marine original spares
- Volvo spare parts
- Gardner spare parts
- Ruston spares
- L’Orange
- Normo spare parts
- MWM Diter
- Sulzer spares
- Wärtsilä spares
- Yanmar spare parts
- Hatteland Display
- Piston rings
- Roller bearings
- Wichmann spare parts
- MAN Spare Parts
- AMOT
- Turbo
- OEM spare parts for MTU
- Caterpillar spare parts
- Subsea noise mitigation
Viewed products
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Twin Disc MG 502-1
Twin Disc MG 502-1
New products
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Omron MYA-LB2 relay unit 24 V DC, 2 × MY4-02
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MTI EP371 relay 24 V DC, 3 CO 7 A
MTI EP371 industrial plug-in relay, 24 V DC coil, 3 changeover contacts 7 A
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Telemecanique XB4 illuminated push button red 24 V, 2 NC
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MaK M451 AK cylinder head complete
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Callesen 427 exhaust valve 16701
Callesen 427 exhaust valve 16701, used.
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Callesen 427 inlet valve 16700
Callesen 427 inlet valve (suction valve) 16700, used.
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Callesen 427 valve cover 16726-2
Callesen 427 valve cover (rocker cover) 16726-2 for the cylinder head,...
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Callesen 427 rocker arm 16707-3
Callesen 427 rocking lever (rocker arm) 16707-3 with bush and adjusting...
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Callesen 427 valve springs outer 16705-1 / inner 16706-1
Callesen 427 inlet / exhaust valve springs, outer 16705-1 and inner...
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Callesen 427F exhaust manifold
Callesen 427F (FOT) exhaust manifold 19544 and exhaust pipes, drawing...
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Callesen 427F freshwater / oil cooler (heat exchanger)
Callesen 427F combined freshwater and lubricating oil cooler, drawing...
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Callesen 427 piston 17247-1, used – replaces 18230
Callesen 427 piston 17247-1 (B–H), used. Replaces the discontinued...
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Bergen KVG G4 gas supply valve 418654, used
Bergen KVG G4 gas supply valve, Rolls-Royce part no. 418654, used.
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Bergen KV / KVG start air valve, used
Bergen KV / KVG / KR start air valve, drawing 313/36, used.
Price on request
or call +47 908 92 500
Data sheet
| Manufacturer | Twin Disc |
| Model | MG 502-1 |
| Arrangement number | BOM No. 38076 |
| Serial number | 5X1861 |
| RPM | Max input RPM: 4000 |
| Rotation direction | CCW - Counter clockwise seen from aft |
| Other | Fitted with Trolling valve, oil cooler and thermostat for oil cooler |
| Weight | 70 kg. |
| Gear type | FP - normal reverse gear for fixed propeller blades |
| Gear ratio | 2:1 |
More info
Twin Disc MG 502-1
Ratio 2:1
BOM No. 38076
Serial 5X1861
Eng rotation: CCW
Fitted with Trolling valve
BOM No. 38076 (Bill of Material) identifies the exact configuration this gear was built to: ratio, rotation, valves, PTO and housing. Quote the BOM No. and serial number 5X1861 when ordering spare parts.