Cummins Marine Diesel Repower Specialists › Forums › Marine Transmissions › Torsional Coupling

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  • January 13, 2023 at 3:35 pm #141121

    Greg Polanin
    Participant
    Vessel Name: Reel Therapy
    Engines: 6BTA 370
    Location: Delaware
    Country: US

    I’m in the middle of installing new long blocks, and when separating the gears from the engines I found my boat currently has Centra CF-FS-30 couplings (SAE 11.5”). The boat is powered by 6BTA 370 engines and has ZF200A gears (1.75 ratio).  Is there a direct replacement to the centra that is recommended that would require any other modifications?  The current couplings are 23 years old now and have 1700 hours on them so while everything is apart I’d like to replace them.  

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  • January 13, 2023 at 5:36 pm #141123

    Greg Polanin
    Participant
    Vessel Name: Reel Therapy
    Engines: 6BTA 370
    Location: Delaware
    Country: US

    Torsional coupling

    Thank you, I was concerned with the description that says not for cummins engines.  Is there any specific reason to be afraid to use these?  It’s recreational use, less than 200 hrs per year.  

    January 13, 2023 at 5:27 pm #141122

    Tony Athens
    Moderator
    Vessel Name: Local Banks
    Engines: QSB 6.7 550 HP
    Location: Oxnard, CA
    Country: USA

    Centa CF-DS 30

    It still made–

    Centa CF/DS 30 Torsional Coupling SAE 11.5 & ZF 220A/V

     

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