Oiltight gearbox by Rickard Nebrer

      I have been using this for several years without any problem.

      Use a bearing ( no 1 ) with a seal on the outer side ( "SKF 6206/RS1" ). Keep the seal ( no 2 ) on the outside of bearing!!.

      bearing

      No more leak from gearbox!!!

      Oiltight gearbox by Bernd Lemper

      I studied mechanical engineering at university in Germany and afterwards worked for a big German bearing manufacturer. If you have problems with oilleaks out of the gearbox I would suggest to use a NSK bearing with double lipped seal 6206 DU. The bearing has the same dimensions as the 6206 ball bearing. The bearing will fit straight away.
      If you want to fit a roller bearing go for a SKF NUP 206E ML or a FAG NUP 206 E M1A or an IBC NUP 206 E M1A. With the NUP bearing you will have no feelable endfloat, only about 60 micron(0,060 mm) so you do not have to use any shims for the gearbox shaft. When buying a bearing go for C3 internal clearance. So you will not have any problems in case the gearbox becomes very hot inside.

      Bernd Lemper
      Updated 7 March 2001
      © Rickard Nebrér