Hard
More than 2 hours
This Milwaukee ball bearing is an OEM replacement part. It fits in assorted handheld power tools including various saws, routers, hammers, and shears. Bearings are used to hold moving parts while they rotate/spin. This lowers friction while stabilizing movement direction and angle. Ball bearings are a commonly replaced item because of their high wear role. Sold individually.
Ball Bearing 02-04-0850
OEM part for: Milwaukee
Part Number: 02-04-0850
$4.99
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Compatibility
This Ball Bearing will fit the following 271 machines. Confirm this part works with your model, and view the detailed model diagrams and repair help we have to offer.
Milwaukee
Show More Compatible ModelsThis item works with the following types of products:
- Saw Parts
- Grinder Parts
- Sander Parts
- Shear Parts
- Circular Saw Parts
- Engine Parts
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Ball Bearing
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Customer Repair Instructions ?
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part.
bearings bad and needed replacement
Tom - July 1, 2020
Tool Type
Circular Saw
Difficulty
Hard
Time
More than 2 hours
Tools Used
Screwdriver, bearing puller, snap ring pliers, wooden dowel, hammer
1. used snap ring pliers to remove external snap ring holding blade guard.
2. removed 4 phillips screws holding gearbox lid.
3. tapped out sealed bearing in gearbox lid using wooden dowel and hammer.
4. removed 4 long phillips screws holding gearbox body.
5. removed needle bearing from gearbox using greasy rag trick. (google it. easier if you
watch. ( it works! i used strips of blue shop paper towel...) removed inner snap ring and
bearing.
6. removed brush covers and brushes. moved gearbox aside and removed commutator
and cardboard insulator.
7. used 3 armed bearing puller to remove bearings from both ends.
8. with commutator out, removed grounding wire screw from gearbox.
9. cleaned all parts in mineral spirits. cleaned contacts on commutator with 1200 grit
emery cloth
10. replaced bearings on commutator; tapped small bearing on with wooden dowel and
hammer. tapped large bearing with 3/4" pipe and hammer, touching only inner bearing
race.
11. replaced brush covers and brushes. replaced commutator and cardboard insulator
12. reattached ground wire to gearbox. reattached gearbox.
13. tapped needle bearing in socket with wooden dowel.
14. filled gearbox with grease.
15. pressed bearing into gearbox lid with fingers! replaced inner snap ring. added more
grease on lid.
16. replaced gearbox lid and screws.
17. replaced blade guard and outer snap ring. replaced blade.
this is how i remember it. your mileage may vary...
2. removed 4 phillips screws holding gearbox lid.
3. tapped out sealed bearing in gearbox lid using wooden dowel and hammer.
4. removed 4 long phillips screws holding gearbox body.
5. removed needle bearing from gearbox using greasy rag trick. (google it. easier if you
watch. ( it works! i used strips of blue shop paper towel...) removed inner snap ring and
bearing.
6. removed brush covers and brushes. moved gearbox aside and removed commutator
and cardboard insulator.
7. used 3 armed bearing puller to remove bearings from both ends.
8. with commutator out, removed grounding wire screw from gearbox.
9. cleaned all parts in mineral spirits. cleaned contacts on commutator with 1200 grit
emery cloth
10. replaced bearings on commutator; tapped small bearing on with wooden dowel and
hammer. tapped large bearing with 3/4" pipe and hammer, touching only inner bearing
race.
11. replaced brush covers and brushes. replaced commutator and cardboard insulator
12. reattached ground wire to gearbox. reattached gearbox.
13. tapped needle bearing in socket with wooden dowel.
14. filled gearbox with grease.
15. pressed bearing into gearbox lid with fingers! replaced inner snap ring. added more
grease on lid.
16. replaced gearbox lid and screws.
17. replaced blade guard and outer snap ring. replaced blade.
this is how i remember it. your mileage may vary...
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Our customer service team are at the ready daily to answer your part and product questions. We have a dedicated staff with decades of collective experience in helping customers just like you purchase parts to repair their products.
All our part reviews are solicited directly from other customers who have purchased this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
Based on data from past customer purchasing behaviors, these parts are most commonly purchased together along with the part you are viewing. These parts may be necessary or helpful to replace to complete your current repair.
All our installation videos are created and produced in collaboration with our in-house repair technician, Mark Sodja, who has helped millions of eReplacementParts customers over the last 13 years repair their products. Mark has years of experience in selling and repairing both commercial and residential products with a specialty in gas-powered equipment.
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