X axis rail issue - solved

Anyone come across this before? One of the bearing blocks is backwards on one of my x axis rails. I’ve submitted a ticket, still waiting to hear back. I know the instructions say over and over not to remove a bearing block as reassembly is near impossible, but what about sliding the backwards block off the rail directly to the other x axis rail, then sliding it back to the original the right way around? I’m sure that Langmuir will send a new rail, but I would like to try this in the mean time to keep the build going. Thoughts?


I assemble NSK linear bearing like these everyday for my day job. I wouldn’t hesitate to do what you are describing. Be careful and align the rails butting up without a gap.

I’ve seen somebody mention this before. I believe they just butted the rails up to each other, and slid one block on to the other rail, and vice versa…as you described.

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Thanks guys, worked perfectly

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Glad to see it worked.
Just for others who may see this thread: the individual blocks come with a plastic guide inside them. I’ve had to remove one on a different machine, and I just did the same thing, except I slid the block back onto the plastic guide. Worked great.
Now, ballnuts… they are a bear, and I hate removing one and replacing it. Lots of grief.

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My ballnuts came with cardboard tubes that work the same way. Really handy!