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  1. #1
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    robinson racing hardened steel spur gear question

    any down fall on using the hardened steel spur gear with hardened pinion gear?

  2. #2
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    Very noisy, doesn't break so something else will. I wouldn't recommend it.
    I reject your reality and substitute my own!

  3. #3
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    I would imagine the motor bearings and pinion would also suffer?? no overly experienced with the electric but on nitro unless your running a full steele clutchbell and spur and tranny its more of a hassle IMO..

  4. #4
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    I could imagine the metal gears would create vibration on the bearings, while plastic gears would adsorb these a little.

  5. #5
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    The biggest drawback is that you can't use it with HPP engine brace. And besides, plastic spurs are so cheap, it would take you years to actually make that metal spur cost-effective.

  6. #6
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    Why can't you use the HPP mount with a steel spur? Dimensions are the same right? I'm guessing you also can't use telemetry with a non stock spur.

  7. #7
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    From HPP website:
    Spur gear with 54T in conjunction with pinions 13T to 20T
    Spur gear with 65T in conjunction with pinions from 16T to 24T
    So I stand corrected. However why anyone would want to use a 65T spur I'll never know...

  8. #8
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    NiMH batteries i guess, but then you wouldnt need the HPP mount .

  9. #9
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    Mind you, there is some leeway. I myself run 54/21 and have had no problems with the brace.

  10. #10
    RC Turnbuckle Jr. 87 GN's Avatar
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    will wear the pinion faster, plastic spur is the way to go....
    three years & replaced one spur, had a missing tooth...
    Would you go flip my truck back over??

  11. #11
    RC Turnbuckle Jr. rjm2519's Avatar
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    The only way I would recommend the Steel spur is if you were going to use the Robinson clutch, but for the price IIRC the HR clutch setup or the brake disc mod would be the way to go.
    Donít handicap children by making life easy

  12. #12
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    Robinson pinions ftw, however

  13. #13
    RC Champion
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    We run Robinson spurs, pinions, and clutch bells, have yet to break a transmission.
    ERBE, ERBE, Summit, Slash 4X4, Bandit,

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