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Needle Bearing

Needle Bearing

Part Number: 02-50-2423
Milwaukee
Availability: 2 in stock
Price: $3.99
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Product Information
Manufacturer: Milwaukee
Product Number: 02-50-2423
Classification: Part
Weight: 0.01 lbs.
Shipping: Ships Worldwide
Description:
This part is provided by the original manufacturer for Milwaukee power tools. The metal bearing is used to prevent friction between moving parts, and usually goes inside a gear. The item includes one needle bearing, and please be aware any associated parts are sold separately. Please refer to your models parts diagram for any additional parts.
Compatibility

This part is compatible with the following machines:

Milwaukee
6140 (SER 762-1001) Grinder
6140 (SER 762-116163) Grinder
6140 (SER 762-197163) Grinder
6140 (SER 762-225408) Grinder
6140 (SER 762A) 4-1/2 Inch Sander-Grinder
6140 (SER 762A) 4-1/2 Inch Sander-Grinder
6140 (SER 762B) 4-1/2 Inch Sander-Grinder
6140 (SER 762B) 4-1/2 Inch Sander-Grinder
6140 (SER 762C) 4-1/2 Inch Sander-Grinder
6140 (SER 762C) 4-1/2 Inch Sander-Grinder
6140 (SER 762D) 4-1/2 Inch Sander-Grinder
6140 (SER 762D) 4-1/2 Inch Sander-Grinder
6140 (SER 762E) 4-1/2 Inch Sander-Grinder
6140 (SER 762E) 4-1/2 Inch Sander-Grinder
6140 (SER 762F) 4-1/2 Inch Sander-Grinder
6140 (SER 762F) 4-1/2 Inch Sander-Grinder
6141 (SER 763F) 5 Inch DI Sander-Grinder
6141 (SER 763F) 5 Inch DI Sander-Grinder
6145 (SER 627A) Sander/Grinder
6145 (SER 627A) Sander/Grinder
6465-68 (SER 974A) Saw
6465-68 (SER 974B) Saw
6146 (SER 684-13000) Sander/Grinder
6146 (SER 684-13000) Sander/Grinder
6407 (SER 633-1001) Circular Saw
6407 (SER 633-1001) Circular Saw
6378-4 (SER 621A) Worm Drive Circular Saw
6378-4 (SER 621A) Worm Drive Circular Saw
6145-2 (SER 627C) Sander/Grinder
6145-2 (SER 627C) Sander/Grinder
6105 (SER 879B) Band File
6466 (SER 772B) Saw Motor
6156-20 (SER 950C) Grinder
6377 (SER 620-100091) Worm Drive Circular Saw
6377 (SER 620-100091) Worm Drive Circular Saw
6367 (SER 632-11500) Circular Saw
6367 (SER 632-11500) Circular Saw
6367 (SER 632-2800) Circular Saw
6367 (SER 632-2800) Circular Saw
6256 (SER 749-1001) Jig Saw
6256 (SER 749-1001) Jig Saw
6125 (SER 787E) Random Orbit Sander
6156-20 (SER 950B) Grinder
6256 (SER 749A) Jig Saw
6256 (SER 749A) Jig Saw
6365 (SER 546-242291) Circular Saw
6365 (SER 546-242291) Circular Saw
6365 (SER 546-374000) Circular Saw
6365 (SER 546-374000) Circular Saw
6365 (SER 546-59000) Circular Saw
6365 (SER 546-59000) Circular Saw
6245 (SER 685-1001) Jig Saw
6245 (SER 685-1001) Jig Saw
5300 (SER 342-76821) Rotary Hammer
5300 (SER 342-90400) Rotary Hammer
5310 (SER 518-3256) Rotary Hammer
5310 (SER 518-11000) Rotary Hammer
6141 (SER 763-1001) Sander
6141 (SER 763-22912) Grinder
6141 (SER 763-29591) Grinder
6141 (SER 763-31251) Grinder
6141 (SER 763A) 5 Inch DI Sander-Grinder
6141 (SER 763A) 5 Inch DI Sander-Grinder
6141 (SER 763B) 5 Inch DI Sander-Grinder
6141 (SER 763B) 5 Inch DI Sander-Grinder
6141 (SER 763C) 5 Inch DI Sander-Grinder
6141 (SER 763C) 5 Inch DI Sander-Grinder
6141 (SER 763D) 5 Inch DI Sander-Grinder
6141 (SER 763D) 5 Inch DI Sander-Grinder
6141 (SER 763E) 5 Inch DI Sander-Grinder
6141 (SER 763E) 5 Inch DI Sander-Grinder
6149-02 (SER 919A) 5" Angle Grinder
6394 (SER 984A) Circular Saw
6394 (SER 984A) Circular Saw
6140-2 (SER 762G) Sander/Grinder
6140-2 (SER 762G) Sander/Grinder
6411 (SER 795B) Saw Motor
6140-2 (SER 762A) Sander/Grinder
6140-2 (SER 762A) Sander/Grinder
6388 (SER 680-1001) Circular Saw
6388 (SER 680-1001) Circular Saw
6373 (SER 626-12931) Worm Drive Circular Saw
6373 (SER 626-12931) Worm Drive Circular Saw
6465 (SER 772B) Saw Motor
6407 (SER 633-11501) Circular Saw
6407 (SER 633-11501) Circular Saw
6154-50 (SER 907B) Grinder
6148 (SER 856E) Angle Grinder
6148 (SER 856H) Grinder
6377 (SER 620-77550) Worm Drive Circular Saw
6377 (SER 620-77550) Worm Drive Circular Saw
6375-20 (SER 961A) Circular Saw
6375-20 (SER 961A) Circular Saw
6145 (SER 627B) Sander/Grinder
6145 (SER 627B) Sander/Grinder
6126 (SER 788-1001) Sander
6246 (SER 750-10277) Jig Saw
6246 (SER 750-10277) Jig Saw
6105 (SER 879A) Band File
6148 (SER 856F) Grinder
6365-2 (SER 546-86264) Circular Saw
6365-2 (SER 546-86264) Circular Saw
6155-20 (SER 949B) Grinder
6405 (SER 552-7500) Circular Saw
6405 (SER 552-7500) Circular Saw
6126 (SER 788A) Sander
6140-2 (SER 762B) Sander/Grinder
6140-2 (SER 762B) Sander/Grinder
6151 (SER 868E) Grinder
6485-68 (SER 405A) Saw Motor
6380-55 (SER A36A) Circular Saw
6380-55 (SER A36A) Circular Saw
6407 (SER 633-3101) Circular Saw
6407 (SER 633-3101) Circular Saw
6365 (SER 546B) Circular Saw
6365 (SER 546B) Circular Saw
6125 (SER 787-8310) Sander
6367 (SER 632-7193) Circular Saw
6367 (SER 632-7193) Circular Saw
6377 (SER 620A) Worm Drive Circular Saw
6377 (SER 620A) Worm Drive Circular Saw
6367 (SER 632B) Circular Saw
6367 (SER 632B) Circular Saw
6148-50 (SER 870C) Grinder
6148 (SER 856D) Grinder
6256 (SER 749B) Jig Saw
6256 (SER 749B) Jig Saw
6376-20 (SER 964A) Circular Saw
6376-20 (SER 964A) Circular Saw
6145 (SER 627C) Sander/Grinder
6145 (SER 627C) Sander/Grinder
6140-2 (SER 762-1001) Sander/Grinder
6140-2 (SER 762-1001) Sander/Grinder
6126 (SER 788-3274) Sander
6225 (SER 457-1001) Two Speed Band Saw
6225 (SER 457-1001) Two Speed Band Saw
6225 (SER 457-45000) Two Speed Band Saw
6225 (SER 457-45000) Two Speed Band Saw
6225 (SER 457-95000) Two Speed Band Saw
6225 (SER 457-95000) Two Speed Band Saw
6225 (SER 457-96817) Two Speed Band Saw
6225 (SER 457-96817) Two Speed Band Saw
6390-20 (SER 983A) 7-1/4" Circular Saw with Tilt-Lok Handle
6390-20 (SER 983A) 7-1/4" Circular Saw with Tilt-Lok Handle
6390-20 (SER 983B) 7-1/4" Circular Saw with Tilt-Lok Handle
6390-20 (SER 983B) 7-1/4" Circular Saw with Tilt-Lok Handle
6390-20 (SER 983C) 7-1/4" Circular Saw with Tilt-Lok Handle
6390-20 (SER 983C) 7-1/4" Circular Saw with Tilt-Lok Handle
6391-21 (SER 189A) Left Blade 7-1/4" Circular Saw with Tilt-Lok Handle
6391-21 (SER 189A) Left Blade 7-1/4" Circular Saw with Tilt-Lok Handle
Expand the 150+ compatible machines
Products Compatibility

This item works with the following types of products:

  • • Band Saw
  • • Circular Saw
  • • Engine
  • • Grinder
  • • Jig saw
  • • Rotary Hammer
  • • Sander
  • • Saw
Expand List
Questions & Answers

No questions have been asked yet
Repair Instructions: Submitted by Customers Like You
Tool Type:
Circular Saw
Parts Used:
Bearing - 02-04-1745
Needle Bearing - 02-50-2423
Ball Bearing - 02-04-0850
Repair Difficulty:
Hard
Time Spent Repairing:
More than 2 hours
Tools Used:
Screwdriver, bearing puller, snap ring pliers, wooden dowel, hammer
bearings bad and needed replacement
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...
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Tool Type:
Circular Saw
Parts Used:
Ball Bearing - 02-04-0847
Needle Bearing - 02-50-2423
Wave Spring Washer - 45-88-0577
O-Ring - 34-40-1375
Ball Bearing - 02-04-1850
Handle Lever (Black) - 31-44-2156
O-Ring Hub - 34-40-1380
Hub Assy - 43-78-0155
Sleeve Lower Guard - 45-22-0605
Repair Difficulty:
Easy
Time Spent Repairing:
More than 2 hours
Tools Used:
Screwdriver, Pliers, Socket set, Wrench Set, Nutdriver, Torq drivers, T-20, T-25
Noisey bearings, damaged cord
Completely disassembled saw, cleaned all of the parts with mineral spirits and some degreaser soap and water. Bearing removal was the most time consuming, but having a couple of years working in a electric motor repair shop helped ease the job. I'm retired and every day is Saturday, and you do what ever you want on Saturday, working on the project whenever ya wanna. This job was for a friend who makes his living remodeling old houses. The on line parts list and schemes are also a benefit. The saw was a Milwaukee and the model was one of the better quality ones which does help make it easier. These are fun jobs I enjoy doing, working with my hands. Will be 79 on September 11. Helped family marry off oldest grandson June 17 in East Jordan, MI and will be in Bozeman MT over Labor day week end to marry off youngest grandson. So repairing tools comes in between. Do appreciate good service from ereplacementparts.
Did you find this story helpful?
Thanks for voting and helping fellow customers!
Product Information
Manufacturer: Milwaukee
Product Number: 02-50-2423
Classification: Part
Weight: 0.01 lbs.
Shipping: Ships Worldwide
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