Stuart Ablett
Member
- Messages
- 15,917
- Location
- Tokyo Japan
****Just a note, the various router out there will have different methods of disassembly and reassembly. My hope here is to show you that for a small replacement cost of bearing (Buy them from a bearing supply house NOT the tool maker!!) your router can be good as new!****
Well the time had come, my Hitachi M12 router, the one that lives in my router table, needed new bearings, I figured I'd better do it before I accidentally let that factory installed smoke out of the motor
The last few times I used it, I noticed a lot of vibration, and a not so nice cut
I ordered the bearings, NTN Japan made, 6200ZZ and 6201ZZ, they came overnight (got to love that Monotaro.com place ) and cost me a grand total of................ about $3
OK, I took the router off the table, I left the plunge base attached to the rounter plate, no need to mess with that. I first removed the brush cups, and the brushes
Unfortunately one of the cups was cracked, this router I bought used, and it had seen some hard use, but the look of things.....
I also found one brush was slightly chipped.
I managed to super glue the cup together and will use the chipped brush until a new one arrives, as well as the cup.
I then removed the 4 large screws holding the plastic body to the aluminum base, and removed the armature and aluminum base as one unit.
I then lightly clamped the armature in the vice (with wood between the vice and the armature, and I mean LIGHTLY clamped it) and removed the collet from the end of the armature shaft.
I could then lightly tap on the end of the armature shaft with a plastic hammer to remove the armature from the bearing that lives in the aluminum housing at the bottom of the router.
Now to remove the bottom bearing from the aluminum housing........
There is a small triangular plate that holds the bearing in place, remove that.......
........and you can see the bearing.
You could just bang it out, but you could also bust the aluminum housing, so I decided to press mine out with my wood vice.....
A couple of pieces of plywood to keep things in line and apply pressure on the right place.............
.......and I have the bottom bearing out of the router!!!
Now forgive me, but I forgot to take pics of the top bearing being removed, I used a two legged gear puller and just pulled it off, not much to see....
With both bearings off the router, I can take a look.....
Both bearings had been apart at some point as you can see by the damage done to them, the seals were removed and maybe some grease was added, I do not know, but for the price of bearings............
So, I now have both bearings out, and I can start replacing them with new ones......
Well the time had come, my Hitachi M12 router, the one that lives in my router table, needed new bearings, I figured I'd better do it before I accidentally let that factory installed smoke out of the motor
The last few times I used it, I noticed a lot of vibration, and a not so nice cut
I ordered the bearings, NTN Japan made, 6200ZZ and 6201ZZ, they came overnight (got to love that Monotaro.com place ) and cost me a grand total of................ about $3
OK, I took the router off the table, I left the plunge base attached to the rounter plate, no need to mess with that. I first removed the brush cups, and the brushes
Unfortunately one of the cups was cracked, this router I bought used, and it had seen some hard use, but the look of things.....
I also found one brush was slightly chipped.
I managed to super glue the cup together and will use the chipped brush until a new one arrives, as well as the cup.
I then removed the 4 large screws holding the plastic body to the aluminum base, and removed the armature and aluminum base as one unit.
I then lightly clamped the armature in the vice (with wood between the vice and the armature, and I mean LIGHTLY clamped it) and removed the collet from the end of the armature shaft.
I could then lightly tap on the end of the armature shaft with a plastic hammer to remove the armature from the bearing that lives in the aluminum housing at the bottom of the router.
Now to remove the bottom bearing from the aluminum housing........
There is a small triangular plate that holds the bearing in place, remove that.......
........and you can see the bearing.
You could just bang it out, but you could also bust the aluminum housing, so I decided to press mine out with my wood vice.....
A couple of pieces of plywood to keep things in line and apply pressure on the right place.............
.......and I have the bottom bearing out of the router!!!
Now forgive me, but I forgot to take pics of the top bearing being removed, I used a two legged gear puller and just pulled it off, not much to see....
With both bearings off the router, I can take a look.....
Both bearings had been apart at some point as you can see by the damage done to them, the seals were removed and maybe some grease was added, I do not know, but for the price of bearings............
So, I now have both bearings out, and I can start replacing them with new ones......