Thrust Bearing Blocks

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Thrust Bearing Blocks

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  • #656150
    James Alford
    Participant
      @jamesalford67616

      Does anyone know whether it is possible to buy plummer blocks that will take thrust? I want to try to make a small wood turning lathe from standard components.

      Thank you.

      James.

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      #21054
      James Alford
      Participant
        @jamesalford67616

        Thrust Bearing Blocks

        #656159
        HOWARDT
        Participant
          @howardt

          Not something I have come across in the past forty odd years. The nearest you can get are combined thrust and axial bearings. You may find components in the usual engineering part suppliers which would allow you to assemble something like you want.

          #656161
          Jeff Dayman
          Participant
            @jeffdayman43397

            I have not come across plummer blocks that have an integral thrust bearing. However you could use the type at the link below with a heavy washer (see down the link page) either side of the needle thrust bearing. This would deal with the thrust load and they are not too expensive. I am not sure where you are but any industrial supply or bearing supply firm will be able you get you one. I have such a thrust bearing set up in my 1949 South Bend lathe and it has performed well for over 16 years even under heavy drilling loads. The original ball thrust bearing in the lathe had heavy wear and some flat spots on the balls. So far no sign of wear on the needle thrust bearing. I lube my lathe with iso 32 hydraulic jack oil which works well and is easily available.

            https://www.mcmaster.com/products/thrust-bearings/roller-bearing-type~needle/

            #656209
            James Alford
            Participant
              @jamesalford67616

              Thank you, both. That is pretty much what I had feared, but hope sprang eternal. I did search around before posting and could not find anything, but hoped that I was searching for the wrong thing.

              James.

              #656213
              MichaelR
              Participant
                @michaelr

                Angular contact spindle bearings may suit your project. link

                Michaelr

                #656214
                Bazyle
                Participant
                  @bazyle

                  It was common on old lathes to have a point bearing at the back end of the spindle. Lots of pictures show that.

                  #656216
                  Robert Atkinson 2
                  Participant
                    @robertatkinson2

                    Have you thought about using a car hub assembly? Dual taper roller bearings good seals and low cost.The Mk7 transit one looks eay to mount
                    https://www.ebay.co.uk/itm/123925114485?
                    You even get a faceplate
                    https://www.ebay.co.uk/itm/143374557735?

                    Ther are smaller ones for cars.
                    You could buy a complete hub carrier / upright with integral bearings and machine it into a headstock.

                    Robert

                    Edited By Robert Atkinson 2 on 12/08/2023 09:51:44

                    #656217
                    Robert Atkinson 2
                    Participant
                      @robertatkinson2

                      Additionally a plummer block almost always has self-aligining bearings. So you would need two and a shaft to make a rigid headstock

                      #656226
                      Pete White
                      Participant
                        @petewhite15172

                        Not quite what you asked, but usually there are bargin Myford ML8 woodturning lathes on ebay, £100 and upward ?

                        Just an idea?

                        Pete

                        #656242
                        bernard towers
                        Participant
                          @bernardtowers37738

                          Yes you can they have a cone arrangement for adjustment they are used on boat propshafts.

                          #656244
                          James Alford
                          Participant
                            @jamesalford67616

                            Thank you for all of the replies and suggestions. I should have given more context, but I was posting from my phone, which is laborious.

                            My daughter's boyfriend is developing an interest in woodworking and woodturning. He seems more interested in making smaller things and due to a lack of a workshop, works indoors. I wanted to try to make him a very small, lightweight basic wood turning lathe that he use on the dining room table. I am currently very short on spare time, so was hoping to be able to use off-the-shelf bearing blocks on which to base the machine. I have looked at second-hand wood lathes and have seen several affordable machines, they are all too large to use indoors, realistically.

                            I might need to think again or just wait until I have the time to build something using some the ideas given.

                            James

                            #656248
                            John MC
                            Participant
                              @johnmc39344

                              How much end thrust are you expecting? Provided that the spindle is of a reasonable diameter, say 1" – 25mm then plummer blocks with standard (deep groove) ball races will be capable of handling axial loading from wood turning.

                              To put some numbers to it, the very common 6005 deep groove ball race will be able to take about 1/2 a ton axial (end thrust) load while rotating.

                              #656255
                              Nick Wheeler
                              Participant
                                @nickwheeler
                                Posted by James Alford on 12/08/2023 14:07:16:

                                My daughter's boyfriend is developing an interest in woodworking and woodturning. He seems more interested in making smaller things and due to a lack of a workshop, works indoors. I wanted to try to make him a very small, lightweight basic wood turning lathe that he use on the dining room table.

                                That sounds just like the ones I saw in Lidl this afternoon. £50 spent would see him making his first cuts a few minutes after getting it home…

                                #656291
                                James Alford
                                Participant
                                  @jamesalford67616
                                  Posted by Nick Wheeler on 12/08/2023 17:23:45:

                                  Posted by James Alford on 12/08/2023 14:07:16:

                                  My daughter's boyfriend is developing an interest in woodworking and woodturning. He seems more interested in making smaller things and due to a lack of a workshop, works indoors. I wanted to try to make him a very small, lightweight basic wood turning lathe that he use on the dining room table.

                                  That sounds just like the ones I saw in Lidl this afternoon. £50 spent would see him making his first cuts a few minutes after getting it home…

                                  As I was reading this, my dearly beloved came back from Lidl and said that they had wood turning lathes at very reasonable prices. Problem solved. Thank you.

                                  #656387
                                  James Alford
                                  Participant
                                    @jamesalford67616

                                    One Lidl lathe bought. One happy daughter's boyfriend.

                                    #656400
                                    old mart
                                    Participant
                                      @oldmart

                                      Too late to make a difference, but for a small tabletop wood lathe, the axial forces would be well within the capacity of these blocks. The Lidl lathe will be a fine start and ready to use immediately, assuming some tools and wood are available now, good luck.

                                      #656403
                                      Peter Cook 6
                                      Participant
                                        @petercook6
                                        Posted by James Alford on 13/08/2023 16:43:14:

                                        One happy daughter's boyfriend.

                                        How happy is the daughter – with the resulting dust and chips all over the dining table!

                                        #656475
                                        James Alford
                                        Participant
                                          @jamesalford67616
                                          Posted by old mart on 13/08/2023 17:41:41:

                                          The Lidl lathe will be a fine start and ready to use immediately, assuming some tools and wood are available now, good luck.

                                          Surprisingly, considering the price, it came with the "prong" chuck or whatever the correct term is, a faceplate, spanners and a couple of turning tools.

                                          Posted by Peter Cook 6 on 13/08/2023 17:52:16:

                                          Posted by James Alford on 13/08/2023 16:43:14:

                                          One happy daughter's boyfriend.

                                          How happy is the daughter – with the resulting dust and chips all over the dining table!

                                          She is very tolerant. He is currently whittling a wooden spoon from a length of mahogany using a Dremel in the dining room

                                           

                                          .

                                           

                                          Edited By James Alford on 14/08/2023 08:06:22

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