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  • bearings

    What type of bearings do you prefer for you upper and lower shafts of your ball lift?


    1. regular(round bore)

    2. "D" bore

    3. old style(locking collar on extended race)


    I have tried all styles and have grown to love the old style. There is no torquing of nuts, only has retaining rings. Also if you have tight kickbacks, like I do, it fits easier into place.

  • #2
    Re: bearings

    Round bore with lock nuts.

    The D bore shafts are too soft and it is hard to get the shaft out.

    Comment


    • #3
      Re: bearings

      Round bores, just seem to turn the inner race into a lathe for the shaft. Ive only lost One D_Bore which i attribute to Stress from Humpbacks. Virtually all Ball lifts ive done since 92ish have been D-Bores

      Comment


      • #4
        Re: bearings

        #3...There is more room for adjustments and to get the belts around lower shaft with this style than with #1. I found that when the D bore bearing goes bad, the lift stops turning. I tried one D bore style and that's what happened. I like the original style best.

        Comment


        • #5
          Re: bearings

          I used to run standard bearings top and bottom(to save money), but I experienced the same problem as coors only on the bottom bearings. I run “D”s on the bottom and standard on top. I now get 2-3 times the life than I was getting when running standards all the way around.

          Triac

          Comment


          • #6
            Re: bearings

            If you torque the nuts correctly the shaft cannot turn inside the bearing race.

            Comment


            • #7
              Re: bearings

              I've been using D-bores without any problems. Use a torque wrench for best results.

              Pete

              Comment


              • #8
                Re: bearings

                I never had any problems with d bore shafts and bearing humpbacks seem to stress the bearings and cause them to fail prematuraly I been a mechanic 14 yrs and have used dbores on my lifts since they were intoduced in 93 and only lost 1 set
                DEFINITION OF MANAGER IN THE 21ST CENTURY: (ADULT BABYSITTER)

                Comment


                • #9
                  Re: bearings

                  D-bore on lower shaft, whatever I find in the upper shaft.
                  No problems with getting the lower D-shafts out over here.
                  So it goes.

                  Comment


                  • #10
                    Re: bearings

                    I have only been working on AMF machines since 2001 (82/90XL) and only have had the pleasure with dealing with D-bores,I have had not a problem one with them yet.

                    Clutch has been to my place and he has told me that he doesn't really care for them but I have alot of spare D-shafts and bearings, so I guess I'll be a D-man for sometime to come.

                    Kenny
                    Lifes to short to stress on little things.

                    Comment


                    • #11
                      Re: bearings

                      If a round bore brg goes bad I lose a shaft.If a d bore bearing locks up you lose a yoke casting.
                      But everyone checks them every week Right?

                      Comment


                      • #12
                        Re: bearings

                        Originally posted by 82/70 king:
                        If you torque the nuts correctly the shaft cannot turn inside the bearing race.
                        <font size="2" face="Verdana, Helvetica, sans-serif">I use a torque wrench that is periodically checked/calibrated…Standard lower shaft spins over a short time. What next…are you going to tell me my lifts are not level and out of adjustment? LOL

                        Irregardless, I’ll stick to “D”s on the bottom.

                        Bottom line…they last much longer for me, which is what this thread is all about.

                        Triac

                        Comment


                        • #13
                          Re: bearings

                          Originally posted by AIR FORCE MECH:
                          I have only been working on AMF machines since 2001 (82/90XL) and only have had the pleasure with dealing with D-bores,I have had not a problem one with them yet.

                          Clutch has been to my place and he has told me that he doesn't really care for them but I have alot of spare D-shafts and bearings, so I guess I'll be a D-man for sometime to come.

                          Kenny
                          <font size="2" face="Verdana, Helvetica, sans-serif">I think the "D" bore works great and have used them for years. The reason I changed to the old style is that I got a bad batch of D bore bearings that would "CLICK" after a short time. That is the reason I changed the setup.

                          Comment


                          • #14
                            Re: bearings

                            D bore for me every time.
                            maister

                            Comment


                            • #15
                              Re: bearings

                              I think the "D" bore works great and have used them for years. The reason I changed to the old style is that I got a bad batch of D bore bearings that would "CLICK" after a short time. That is the reason I changed the setup.
                              <font size="2" face="Verdana, Helvetica, sans-serif">We have had the same bad batch, actually that batch had one ball bearing less(good batch had 12 small bearings; bad batch had 11 just a little bit bigger bearings) and already had a little play in it when they were new.
                              Both were Nice 8417's.
                              So it goes.

                              Comment

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