Makita 3612BR bearing problem - Router Forums
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post #1 of 5 (permalink) Old 03-05-2010, 12:23 PM Thread Starter
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Default Makita 3612BR bearing problem

Hi, I'm new at this posting a thread so hope it works. I'm a retired tool maker with a hobby wood working shop. I'm interested if anyone has removed the bottom ball bearing on a Makita 3612BR router. It must be pressed out of the lower case half by the looks of my manual. May be no problem but would not be very happy if I damaged the housing. Thanks for help. Virgil
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post #2 of 5 (permalink) Old 03-06-2010, 01:01 AM
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Welcome to the RouterForums Virgil. Where did you retire from, as a Tool Maker?

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post #3 of 5 (permalink) Old 03-06-2010, 01:28 AM User
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Welcome to the forum Virgil, whilst I've never had to replace bearings in any of my Makita routers, I have in my working days removed at least a couple of hundred ball races from lower drum assemblies in VHS recorders. I made a simple extractor from a tube which was a slip fit into the bearing, put three slots in the end and turned a wedge with a fine taper which, when forced up the tube by a screwed rod down the centre, gripped the bearing and made extraction very easy. I've only given a brief description because as a retired tool maker it should be a simple thing to make, shouldn't it Dave, (Dave who greeted you is also a retired toolmaker)


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post #4 of 5 (permalink) Old 03-06-2010, 04:00 AM
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Greetings Virgil and welcome to the router forums. Thank you for choosing us.

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"How often we sacrifice the permanent plans of God on the altar of immediate solutions"

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post #5 of 5 (permalink) Old 03-07-2010, 02:15 PM Thread Starter
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Thanks for the welcome, Dave, Harry, and Jerry. I have updated my profile Dave. I have heard that lots of us Tool Makers are also woodworkers. I have a woodworking friend that really has a problem with me when using decimals. I did some more looking at my problem and decided a small hammer with a piece of Oak would be a good first try. Supported the bottom half of the housing on some more Oak pieces and inserted the piece of Oak into the collect end of shaft and gave it a small tap. It worked fine. The bottom bearing is held into the housing with a plate and four screws that are behind the cooling fan. The complete armature must be pressed or driven out first to get at these screws. Ordered the new bearing Friday morning from Makita U.S.A. and received them Sat. shipped Fed EX Mt. Prospect Il. Thanks Virgil
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