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Library› Engine Room› Propulsion Gearbox› Propulsion Gearbox / Reduction Gear
Propulsion Gearbox

Propulsion Gearbox / Reduction Gear

A reduction gear exists because diesel and gas turbine engines run efficiently at speeds far higher than a propeller can use without cavitating — the gearbox is what lets the engine and the propeller each turn at the speed that suits them.

1,717models
46manufacturers
500–8,000 kWtypical power
10 Oct 2026last updated
Models

Models in this type.

Models 1,001 to 1,100 of 1,717 in Propulsion Gearbox / Reduction Gear. Every row links to full specifications, documents and service notes.

Reintjes 322Rossi 290Renk 262ZF Marine 114Leroy-Somer 58Hanla IMS 50ME Production 38Lafert 34Twin Disc 28Masson Marine 26Schottel 21Veth Propulsion 9Data Hidrolik 7Wärtsilä 6MAN Energy Solutions 4Yanmar Norge 3
Sort by:Best documentedNamePower (kW)
RenkASD-3000 4.5:1 ZF FriedrichshafenIRM 40 hasta IRM 50 ReintjesWAF 3000kW 5:1 RossiAB12BI063 RenkASD-3000 6:1 ZF FriedrichshafenIRM 40 à IRM 50 ReintjesWAF 3000kW 6:1 RossiAB12BI071 RenkASD-30000 2.5:1 ZF FriedrichshafenIRM 40 до IRM 50 ReintjesWAF 40000kW 2:1 RossiAB12BN056 RenkASD-30000 3.5:1 ZF FriedrichshafenSD 12 ReintjesWAF 40000kW 3:1 RossiAB12CN143 RenkASD-30000 4.5:1 ZF FriedrichshafenSeaRex 120s ReintjesWAF 40000kW 4:1 RossiAB30MI200 RenkASD-30000 6:1 ZF FriedrichshafenZF 12 M 12 ReintjesWAF 40000kW 5:1 RossiB16D FE RenkASD-4000 2.5:1 ZF FriedrichshafenZF 15 M 12 ReintjesWAF 40000kW 6:1 RossiB3 RenkASD-4000 3.5:1 ZF FriedrichshafenZF 15 MA 12 ReintjesWAF 400kW 2:1 RossiB5 RenkASD-4000 4.5:1 ZF FriedrichshafenZF 220 a ZF 83700 ReintjesWAF 400kW 3:1 RossiB6 RenkASD-4000 6:1 ZF FriedrichshafenZF 220 bis ZF 83700 ReintjesWAF 400kW 4:1 RossiB7 RenkASD-500 2.5:1 ZF FriedrichshafenZF 220 hasta ZF 83700 ReintjesWAF 400kW 5:1 RossiB8 RenkASD-500 3.5:1 ZF FriedrichshafenZF 220 à ZF 83700 ReintjesWAF 400kW 6:1 RossiC2I 5000 ... 5601 RenkASD-500 4.5:1 ZF FriedrichshafenZF 220 до ZF 83700 ReintjesWAF 50000kW 2:1 RossiC3I 6300 RenkASD-500 6:1 ZF FriedrichshafenZF 23560 a ZF 23860 ReintjesWAF 50000kW 3:1 RossiC6301 RenkASD-5000 2.5:1 ZF FriedrichshafenZF 23560 bis ZF 23860 ReintjesWAF 50000kW 4:1 RossiCI 4000 ... 4501 RenkASD-5000 3.5:1 ZF FriedrichshafenZF 23560 hasta ZF 23860 ReintjesWAF 50000kW 5:1 RossiCI, MR C2I, MR ICI RenkASD-5000 4.5:1 ZF FriedrichshafenZF 23560 à ZF 23860 ReintjesWAF 50000kW 6:1 RossiF212 RenkASD-5000 6:1 ZF FriedrichshafenZF 23560 до ZF 23860 ReintjesWAF 5000kW 2:1 RossiF214 RenkASD-6000 2.5:1 ZF FriedrichshafenZF 25 M 12 ReintjesWAF 5000kW 3:1 RossiF216 RenkASD-6000 3.5:1 ZF FriedrichshafenZF 25 MA SPEED ReintjesWAF 5000kW 4:1 RossiF312 RenkASD-6000 4.5:1 ZF2500 A ReintjesWAF 5000kW 5:1 RossiF314 RenkASD-6000 6:1 ZF2500 NR ReintjesWAF 5000kW 6:1 RossiF316 RenkASD-750 2.5:1 ZF2500 NRU ReintjesWAF 600kW 2:1 RossiF320 RenkASD-750 3.5:1 ZF2500 U ReintjesWAF 600kW 3:1 RossiF414 RenkASD-750 4.5:1 ZF2550 A ReintjesWAF 600kW 4:1 RossiF416
Related types

Also in Propulsion Gearbox.

The other equipment types in this category.

Reduction Gearbox
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