This Ball Bearing is sealed on both sides. It is a genuine replacement part and is sold individually.
Ball bearings are used to reduce friction between rotating parts.
The balls or rollers take the load and spin, distributing the weight evenly while the minimal contact area of the ball reduces friction. This reduces wear on the tool and allows it to run smoothly.
Bearings experience constant wear when the tool is in operation from pressure, heat, vibration and friction. Because of this, many Bearings need periodic maintenance or replacement.
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★★★★★
★★★★★
Fixed my saw
A broke down saw is depressing. After taking it apart I saw armature bearing was jammed up. After taking measurements, it took a bearing puller to remove it. Part came quickly, and saw works as it should again
Guest - September 23, 2019
Verified Purchase
★★★★★
★★★★★
Prrfect
Bearing
Guest - November 4, 2019
Verified Purchase
★★★★★
★★★★★
installed perfectly
arrived quick, oem
David - August 10, 2020
Verified Purchase
★★★★★
★★★★★
The berry was great shape and it worked out fine for what I need to do for thank you so much
It was in great condition brand new packages appreciated
Guest - September 8, 2020
Verified Purchase
★★★★★
★★★★★
Allways find what I need
fits right and works good thank you.
Guest - October 12, 2021
Verified Purchase
★★★★★
★★★★★
Tool/Problem Fixed !
AH, Yet again, eRP's has come thru. As many of my tools are older (like myself, some older than the guys on the jobsites HaHa ) parts wear out/break. My Dewalt DW718 miter saw (one of my most used tools) "went awry" (sparks, noise, stopped altogether) using your schematic (& cross referencing) I got the bearing & watched the repair vid.
VIOLA. Saw's back in action & use again !!
Thanks, Keep Up The Good Work !
Best Regards,
Couzin Ed "Wood & Such, LLC"
Guest - January 16, 2022
Verified Purchase
★★★★★
★★★★★
Armature shaft bearing replacement.
Dewalt 12” sliding compound miter saw. Couldn’t get any help from Dewalt but e-replacement gave me quick, easy access to parts diagrams and parts lists. Easy ordering process and fast delivery, very fair price. I’ve ordered lots of parts from e-replacement for lots of different tools. Easy, quick, and fair every time.
Guest - February 3, 2022
Verified Purchase
★★★★★
★★★★★
the part fit like a glove
Part came fast and was perfect fit
Rich - February 15, 2022
Verified Purchase
★★★★★
★★★★★
part n127530 replacement
once I figured out the correct part I would need ( I struggled understanding your parts drawing), spending 20 bucks instead of 400(for a new saw) put a smile on my face. thanks
Guest - April 12, 2022
Verified Purchase
★★★★★
★★★★★
PURCHASE CAME AHEAD OF SCHEDULE.
WHILE TAKING SOME EFFORT TO INSTALL AS TIGHT-FITTING BEARINGS DO, IT SAVED MY SEVEN HUNDRED DOLLAR SAW.
Robert - April 18, 2022
Verified Purchase
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Bearing on output side of motor seized (saw used daily in an industrial shop). Housing disassembly easy. Loosen commutator brushes (held in place with flat springs) before removing motor arbor. Not enough clearance between the fan, which is white plastic, and the bearing to get a gear/bearing-puller tool to get a bite on the bearing, so
... Read more I cut the bearings (I replaced both output and butt-end) with a cut-off disc on a Dremel tool. Installed the new bearings and reassembled. Total time, less than an hour. Cutting the bearings was the hinkiest part of the job, so took the bulk of the time. When putting the metal cap back on the motor, pay attention to the correct orientation of the cap to the tension adjustment that it mates with on the arm frame. Before disassembling, make a mark on both parts so you will know which way it goes on when reassembling.
Remove belt cover. Loosen torx screws that hold motor to housing. (6 or 8). Loosen hex screw on back side of motor. Slide motor forward to remove belt. Remove the screw that holds the pulley to the armature. (right hand thread). Remove the snap ring. Remove the end cap on the motor to remove the brushes. Remove the side cover next to the
... Read more motor that hides the power cord (4 torx screws). Remove the 4 long torx screws that hold the motor housing to the frame. Remove housing and field by pulling toward you. Pull the armature out of frame. Pull off the bad bearing and press on the new bearing. Assemble in reverse order. Note: tighten the hex screw on the back side of motor to adjust the belt. Don\'t over tighten the belt or it will take out the new bearing.
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The bearing went bad and was making an awful racket
Removed the belt cover,
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/sp
... Read moreindle,
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.
1. Removed the plastic belt cover.
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.
Remove what was left of belt housing.
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 bear
... Read moreings 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.
Removed drive belt cover
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
... Read morefor 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
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Saw operation was very loud, and it was difficult to turn the blade when the machine was off.
Remove the belt cover and motor cap.
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 betwe
... Read moreen 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.
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Bearing seized up on miter saw, bearings squealing on router
This part is in stock in our warehouse and will ship out within 1 business day of the order being placed.
New stock is on the way! On order parts usually ship within 7 business days.
Item is not in stock and usually ships 10-15 business days from the time you place your order.
This item is no longer being made by the manufacturer, and cannot be added to your shopping cart.
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Some of the parts we sell are eligible for mail-in rebates since we can recycle them. We will display any applicable rebates in your shopping cart. To redeem your rebate, contact Customer Service after you have received your part.
