Goodway Yama Seiki spindle bearing failure
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  1. #1
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    Default Goodway Yama Seiki spindle bearing failure

    We have 3x Goodway/Yama Seiki GLS 200 turning centres which all have needed spindle bearings replaced within the first 3 years of ownership. One of which was only 3 months old when the spindle bearing went therefore was repaired under warranty.

    Our local agent for these machines has been great during these issues but unfortunately I can’t say the same for Goodway.
    We had Goodway engineers from Taiwan inspect the machines and they believe it was due to a crash or operator error. None of the machines have had any crash, the local agent confirmed this as they are the ones to service these machines but Goodway still wouldn’t take any responsibility and wouldn’t offer us any support to get the machines up and running.

    We have other brand machines running the same parts which are over 15 years old without any issues.

    This must be due to a manufacturing or assembly fault. I can’t see what else would cause premature failure like this.

    I just wanted to share our experience with fellow machinists out there and hopefully it saves others from going through this very expensive exercise.

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    Is there any signs of coolant making it in the bearings?

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    Quote Originally Posted by SND View Post
    Is there any signs of coolant making it in the bearings?
    No. The technician said there was no traces of coolant inside the bearings.

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    Quote Originally Posted by Leemac86 View Post
    No. The technician said there was no traces of coolant inside the bearings.
    Got any pictures of the bearings? Was the failure diagnosed as noise, excess play, degraded finish or ?

    No coolant, but any other debris? If you had multiple failures it should be relatively easy to find a common theme...


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