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How do I remove the bearing from the drive end of the armature from an AEG WSE802 Angle Grinder?

Have the armature out and the non drive end bearing removed.

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  • 213 Answers

Dear Michael,

Here offered is a video by Taimo T that offers the entire process. Close attention is needed to absorb his procedure. The foundation is the basis for angle electric grinders.
Angle Grinder And Its Bearings
Please watch the entire presentation.

A small bearing puller works best. Here is examples of one to buy or borrow.

A
ATD Tools 3056 Bar Type Puller Bearing Separator Set in Molded Storage and....
B
Pump Pulley Remover Straight Type Two Claws Bearing Puller
Hand Tool

C
Wilmar W137P 6 3 Jaw Gear Puller
D
Neiko 19 Piece Automotive Bushing Bearing Driver Tool Set

The alternative is to squeeze the old bearing in a vice with soft jaws . Then move the end shaft with a brass hammer or punch to remove with an internal fit.

Fare. Well.

Posted on Dec 13, 2014

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Posted on Jan 02, 2017

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  • 1 Answer

SOURCE: something wrong with the armature

If the armature is shot, it will spark a lot where the brushes are touching the armature comutator. To remove the armature:1 Remove brushes. 2 Remove 4 screws holding the gear box. 3 Pull away gear box from the body. The armature may come with the gear box or not, it's only pushed in, so you should have no problem to disassemble it. If the armature stay in the grinder, use two skrew drivers to pray it out. You may not see anythink wrong with it, but it may be no good . That's Makita special, they don't make it good as they used to. The price for new grinder is about $130, for armature $65. field $40

Posted on Mar 08, 2009

housejess
  • 317 Answers

SOURCE: angle grinder

on a grinder the nut that holds the wheel on has left handed threads.....that means it has to be turned in the opposite direction than conventional nuts do..there should be a button on the casing to hold in..this keeps the grinding wheel from turning wheel being removed....remember to unplug first..thanks and have a great day

Posted on Jan 03, 2010

  • 39 Answers

SOURCE: replacing the gear on makita angle grinder

Are you replacing both gears? The armature gear (pinion) is usually held on with a nut or else is pressed on. The spindle gear is also pressed on. Most spindle gears will come as an assembly with the gear and spindle and housing all together.

If yours doesn't, then the spindle will need to be pressed out of the housing, and then the gear pressed off of the spindle. (Always replace the grease as well when replacing gears.)

Posted on Apr 24, 2012

  • 47 Answers

SOURCE: Remove armature from grinder housing

If you have a shot armature then it will spark a lot where the brushes are touching the armature comulator. To remove the armature:1 Remove brushes. 2 Remove 4 screws holding the gear box. 3 Pull away gear box from the body. The armature may come with the gear box or not, it's only pushed in, so you should have no problem to disassemble it. If the armature stay in the grinder, use two skrew drivers to pray it out. You may not see anythink wrong with it, but it may be no good .


If my information helped you plz give me markings. Thanks

Posted on May 17, 2012

tiberiann
  • 1 Answer

SOURCE: armature problems

http://www.toolsandmachinery.com/blog2/tag/repair-9564cv-grinder/

Posted on Jan 12, 2013

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1 Answer

The bearing on the armature of my Bosch 4000 table saw fell apart and now only the inner part of the bearing is on the armature. How can we remove this?


you will need a knife edge bearing puller available from an auto parts shop or a good tool shop
it will be a small puller that comes in to sections which are bolted together under the inner race of the bearing ( bit still in the shaft) and that section is attached to a bar with a screw through it that then pull the inner race off the shaft
or if you are very careful , you can use a 4" angle grinder with a 1mm cutting blade and cut across the bit at an angle NOT IN LINE WITH THE SHAFT -as that will give the blade clearance to the windings -- so that the blade is clear of the windings
cut down about 1/2 way then using a steel solid support under the bearing race , place a sharp cold chisel in the cut and using a ball pein hammer hit the chisel into the cut
that will crack the rest of the race and you can then get it off with your fingers
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How do I replace gears milwaukee 6123-31 angle grinder?


Dear Ion,

Here is a video worth viewing. Angle Grinder And Its Bearings .


This site offers almost all you need. I offered the link to show and tell how to get there. Research your device onward.

Milwaukee 6148 30 SER B71A 4 5 Angle Grinder Parts

To remove the gears, it is helpful to borrow or purchase bearing pullers. Here are on examples.


A Neiko 19 Piece Automotive Bushing Bearing Driver Tool Set

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C Wilmar W137P 6 3 Jaw Gear Puller

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If you have a vice, soft jaws , are placed on an outside bearing racing fit to be held. A Brass hammer or drift pin may be used to strike the armature without damage to move the bearing for clearance. Another person may be needed to catch the shaft from falling. In the case of a internal bearing care must be observed,however, Sockets that fit in the area make great devices to drift the bearing should there be room to employ the repair process.

Fare. Well.

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Could you please help me repair my Makita angle grinder?


The problem will be removing the inner bearing ring from the armature. You will need to source a suitable bearing puller from a hire shop or possibly get one made.
It will look like a tube with a slot in the side.
The bottom will have a plate welded on it, also with a slot.
The slots allow the puller to pass over the armature enabling the puller to centralise over the shaft,
The top of the puller will have a plate welded on with a hole through the centre. On this plate is welded a nut.
A bolt will pass through the nut and contact the armature shaft.
with the puller centrally located over the armature and the bottom plate in contact with the bearing the bolt is tightened to pull the bearing up.
I have made a puller similar to this from an old spark plug socket (good quality from as socket set) but it may not be long enough for your application.

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You can purchase replacement carbon brushes on amazon Amazon com Ryobi carbon brushes. I hope this was helpful. cheers

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Replacing the gear on makita angle grinder


Are you replacing both gears? The armature gear (pinion) is usually held on with a nut or else is pressed on. The spindle gear is also pressed on. Most spindle gears will come as an assembly with the gear and spindle and housing all together.

If yours doesn't, then the spindle will need to be pressed out of the housing, and then the gear pressed off of the spindle. (Always replace the grease as well when replacing gears.)

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Something wrong with the armature


If the armature is shot, it will spark a lot where the brushes are touching the armature comutator. To remove the armature:1 Remove brushes. 2 Remove 4 screws holding the gear box. 3 Pull away gear box from the body. The armature may come with the gear box or not, it's only pushed in, so you should have no problem to disassemble it. If the armature stay in the grinder, use two skrew drivers to pray it out. You may not see anythink wrong with it, but it may be no good . That's Makita special, they don't make it good as they used to. The price for new grinder is about $130, for armature $65. field $40

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