This Ball Bearing is sealed on both sides. It is a genuine DeWalt replacement part and is sold individually.
Ball Bearing N127530
OEM part for: DeWALT
Part Number: N127530


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Product Description ?
- Classification: Part
- Weight: 0.12 lbs.
- Shipping: Ships Worldwide
Frequently Purchased Together ?
Compatibility
This Ball Bearing will fit the following 131 machines. Confirm this part works with your model, and view the detailed model diagrams and repair help we have to offer.
Displaying 20 of 131 matching models.
DeWALT
Show More Compatible Models131 total model matches. Try the above search to narrow your results.
This is the official OEM part for the following brands:
- DeWALT
This item works with the following types of products:
- Miter Saw
- Saw
This part replaces obsolete part #: 605040-32, 330003-48
Customer Part Reviews ?
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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.
Bad bearing (closest to output shaft) on main-shaft/motor arbor.
Tool Type
Chop Saw
Difficulty
Medium
Time
30-60 minutes
Tools Used
Screwdriver, Power Drill, Dremel tool with cut-off wheel
Parts Used
The bearing went bad and was making an awful racket
Tool Type
Miter Saw
Difficulty
Medium
Time
30-60 minutes
Tools Used
Screwdriver, Impact driver, sockets, hammer, vise
Parts Used
Removed the blade guard,
Removed the cover that hides the wires,
Removed whole motor assembly,
Removed the inner part of the motor with the bearing on it,
Clamped the bearing in the vise and tapped the motor/spindle through it,
Put wood on the vice clamps and clamped the motor/spindle,
Place the new bearing on the spindle and used an appropriate size socket to just get the inner race to tap the bearing into place,
Reassemble in reverse order.
You can adjust belt tension with the screw on the top towards the back of the motor.
Very rough sounding motor.
Tool Type
Miter Saw
Difficulty
Hard
Time
1-2 hours
Tools Used
Pliers, Impact driver, hex wrenchs, torx wrenchs, bearing puller.
Parts Used
Ruined bearing causing noise and lockup
Tool Type
Miter Saw
Difficulty
Medium
Time
30-60 minutes
Tools Used
Screwdriver, Socket set, Wrench Set, bearing splitter
Parts Used
https://www.youtube.com/watch?v=zmHgrs9FUwk
https://www.youtube.com/watch?v=uH-uMGA2WWc
Customer destroyed bearing cutting bricks. Spun motor main bearing in casting.
Tool Type
Miter Saw
Difficulty
Medium
Time
30-60 minutes
Tools Used
Screwdriver, Gear puller, torch, snap ring pliers, deadblow hammer, Torx
Free electric cables.
Remove top of handle/trigger assembly.
Remove brushes and tail cover of armature.
Remove motor housing to free armature and clean all debris.
Use torch to expand belt pulley and remove from shaft.
Remove snap ring and use pullers to remove bearings from each end of armature.
Replace bearings on shaft, replace snap ring and heat pulley to reinstall.
Spray main bearing with mold release and wipe steel filled epoxy in spun bearing pocket of arm casting.
Reinstall motor *with armature* while checking for excess epoxy squeeze out.
Reinstall brushes, end cap and handle.
Reattach cables.
Loosen belt adjustment, install belt, and tension.
Install belt cover being careful it fits up correctly beneath handle.
Test for proper function.
Saw operation was very loud, and it was difficult to turn the blade when the machine was off.
Tool Type
Miter Saw
Difficulty
Hard
Time
More than 2 hours
Tools Used
Screwdriver, Pliers, Socket set, Wrench Set, Torx wrenches, pulley/gear puller
Loosen the motor and belt tensioner and remove the belt.
Remove the motor using the 4 outside bolts not the six inside bolts.
Pull the winding assembly out
Using. pulley or gear puller, remove the belt pulley and large bearing. Note that there is about 1/16 inch clearance between the large bearing and the cooling fan.
Wire brush axle and install new bearing using a deep well socket or pipe that meets the bearing at the inner bushing. Hitting the bearing from the outside can damage it
Replace the pulley.
Repeat process for small bearing and reassemble the motor being careful not to damage the brushes when you reseat the winding assembly.
Bearing went bad on Dewalt chop saw
Tool Type
Chop Saw
Difficulty
Medium
Time
30-60 minutes
Tools Used
Screwdriver, Pliers, Socket set, Snap Ring Pliers
Removed drive belt
Removed motor cover with armature
Removed armature from housing
Used bearing separator and press to remove drive pulley, then damaged bearing.
Inner race of bearing was very tight so we thinned it with a carbide burr and broke it off the shaft
Retaining screw for drive pulley was installed with Loctite, had to heat to soften Loctite and remove.
Only the large bearing was bad but I replaced both while apart
Reassembled in reverse order.
Helpful to have some experience
Kerf plate endured 10 yrs of use, saw slid off bench in vehicle cargo area which broke the handle, bearing noise from normal use signaled problems
Tool Type
Miter Saw
Difficulty
Medium
Time
30-60 minutes
Tools Used
Screwdriver, Nutdriver
2) Handle replacement, not a problem, just note where wires run.
3) Bearing replacement - ouch. Could have gone really well, however, the screw that held the belt pulley broke in the armature spindle. Recommend using a hand driver or ratchet rather than an impact driver because you'll likely figure out that heat or some sort of penetrating oil is required before you break off the pulley screw. The general steps of this repair are not difficult if you have a bearing puller and a press - provided you have more patience than I did.
Horrible noise and slight binding on engagement and slow down
Tool Type
Miter Saw
Difficulty
Easy
Time
30-60 minutes
Tools Used
Power Drill, Hammer, bearing splitter, 2 jaw puller, good vise
Loud grinding noise.
Tool Type
Chop Saw
Difficulty
Medium
Time
30-60 minutes
Tools Used
Screwdriver, Pliers, Oxy/acy torch, gear puller
2. Loosened and removed the belt.
3. Removed the motor.
4. Removed the brushes.
5. Pulled out the armature.
6. Used a torch and a gear puller to remove the grooved pulley to access the bad bearing. 7. Replaced the bearing and reassembled.
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Learn MoreOur product descriptions are a combination of data sourced directly from the manufacturers who made your product as well as content researched and curated by our content & customer service teams. This content is edited and reviewed internally before being made public to customers.
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.
This data is collected from customers who submitted a repair instruction after replacing this exact part. Customers can rate how easy the repair was to complete and how long it took. We aggregate this data to provide a repair rating that allows customers to quickly determine the difficulty and time needed to perform their own repair.