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Which Grease Nipples?

  • 21-11-2012 9:53pm
    #1
    mikefoxo
    Registered Users, Registered Users 2 Posts: 461 ✭✭


    There seems to be a whole load of different variations of size and thread, like UNF; AF; BSP not to mention metric:confused: How do you know which ones to get?


Comments

  • #2
    zetecescort
    Registered Users, Registered Users 2 Posts: 5,222 ✭✭✭zetecescort


    much like the ordinary nut and bolts I think it depends on your machine. older british built would be AF or BSP. euro stuff would be metric

    post back what you need them for.


  • #3
    pakalasa
    Closed Accounts Posts: 4,552 ✭✭✭pakalasa


    Threads would drive you mad at times. Even experienced guys find it hard to tell. What are you doing replacing old ones?
    Take out the old one and put a vernier across the threads. You should be able to tell then if the threads are Parallel or Tapered. Parallel ones will probably be either Metric (on a new machine) or BSPP, British Standard Pipe Parallel, usually called BSP.
    Secondly, estimate the pitch, (distance between threads) using a thread gauge like below or measure the length of say 3 threads with vernier and get average.

    If you can get your hands on a Zeus Book, you can figure it out with
    1- Thread outer diameter
    2 - Taper or Parallel
    3 - Thread pitch, often expressed as TPI, threads per inch.

    Long Winded but that's the complete way. Experienced guys would know by simply looking at it.

    threadgauge.jpg

    ZeusBook.jpg


  • #4
    mikefoxo
    Registered Users, Registered Users 2 Posts: 461 ✭✭mikefoxo


    I was just looking for a few to put on an old JCB, and to have a few spare to hand. Most of the stuff we have would be using imperial measurements. It's just the thread part that stumped me!


  • #5
    kingstown
    Registered Users, Registered Users 2 Posts: 208 ✭✭kingstown


    I would say most older JCB's are imperial. A selection / assortment of grease nipples straight & angled to hand, wouldn't go a stray on any farm.

    Most garages sell assorted pack's of both imp & metric for a few euro and i would suggest to have a few ''Drive Fit'' Nipples also.

    These are just nipples without any thread, just ridges. Maybe not ideal i know but better than no grease nipple!

    A few euro worth of grease nipples around the place works out cheaper than a bushing or bearing, but be sure to keep the machine greased..


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