Results 1 to 6 of 6

Thread: Pinion Bearings

  1. #1
    Join Date
    Oct 2014
    Location
    Northern NSW.Australia
    Posts
    1,970
    Total Downloaded
    0

    Pinion Bearings


    Good Evening.
    Anyone shed light on the extra numbers /2, /4 on my rear Diff Pinion bearings.
    53 80 Inch S1.
    Sure new ones wont have it...
    Thanks.

    whitehillbilly
    Attached Images Attached Images

  2. #2
    Join Date
    Jan 1970
    Location
    Narre Warren South
    Posts
    6,314
    Total Downloaded
    0
    Some bearings used to have a marking system to show the tolerance when it was assembled.
    Probably assembled, then it was checked for 'play' and given a mark to indicate the tolerance.
    From memory it was a O, OO or OOO almost polished on rather than stamped earlier in production.

    I'll have to try and google the details but maybe this is a tolerance mark ?


    Colin
    '56 Series 1 with homemade welder
    '65 Series IIa Dormobile
    '70 SIIa GS
    '76 SIII 88" (Isuzu C240)
    '81 SIII FFR
    '95 Defender Tanami
    '58 Series II (sold)
    Motorcycles :-
    Vincent Rapide, Panther M100, Norton BIG4, Electra & Navigator, Matchless G80C

  3. #3
    Join Date
    Oct 2014
    Location
    Northern NSW.Australia
    Posts
    1,970
    Total Downloaded
    0
    Thanks Colin.
    POHMS on S1,S2 and LR UK Forums have no Idea.
    Timkin Australia have no Idea.
    Taking at work today....Wondered if Radius Ground 2 and 4 Thou to allow for heat expansion ???? In Casing fit.
    New bearings don't have it. Or Similar as bore block. Hone and Graded piston to match.

    whitehillbilly

  4. #4
    Join Date
    Jan 1970
    Location
    Narre Warren South
    Posts
    6,314
    Total Downloaded
    0
    Some info here on RHP (Ransome Hoffman & Pollard) bearing markings.

    Vintage Bike Magazine >> RHP (NSK) Bearing Codes




    Colin
    '56 Series 1 with homemade welder
    '65 Series IIa Dormobile
    '70 SIIa GS
    '76 SIII 88" (Isuzu C240)
    '81 SIII FFR
    '95 Defender Tanami
    '58 Series II (sold)
    Motorcycles :-
    Vincent Rapide, Panther M100, Norton BIG4, Electra & Navigator, Matchless G80C

  5. #5
    Join Date
    Jul 2009
    Location
    S.E.Qld
    Posts
    1,334
    Total Downloaded
    0
    From a 45-54 bearing catalogue, issued Oct. 55
    .W.
    Attached Images Attached Images

  6. #6
    Join Date
    Oct 2014
    Location
    Northern NSW.Australia
    Posts
    1,970
    Total Downloaded
    0
    Thanks W.

Tags for this Thread

Bookmarks

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Search AULRO.com ONLY!
Search All the Web!