Medium
1-2 hours
This is an authentic OEM part made by original manufacturer. It is compatible with various Skil and Bosch saws. Ball bearings serve as a buffer between metal parts. They also stabilize for proper positioning/direction of moving parts. Ball bearings need frequent replacement because of their high-wear function. This steel ball bearing is sold individually. Seals, o-rings, etc. are sold separately.
Ball Bearing 5700058006
OEM part for: Skil, Bosch
Part Number: 5700058006
$4.99
In Stock
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Frequently Purchased Together ?
Compatibility
This part will fit the following 71 machines
Skil
HD3580 TYPE 1 (F012358099) 13 in. Drill Press View Diagrams & Manuals
5825 TYPE 2 (F01258250A) 6-1/2 in. Worm Drive Saw View Diagrams & Manuals
HD6740 TYPE 1 (F012674000) 1/2 in. Electric Drill View Diagrams & Manuals
HD77 Type 17 Worm Drive Saw (Skilsaw 77) View Diagrams & Manuals
5860 (F012586099) Circular Saw View Diagrams & Manuals
HD77M (F012HM7702) 7 1/4" Magnesium Worm Drive Skilsaw View Diagrams & Manuals
SHD77 (F012SD7700) 7 1/4" Worm Drive Skilsaw View Diagrams & Manuals
SHD77 (F012SD7705) 7 1/4" Worm Drive Skilsaw View Diagrams & Manuals
SHD77M (F012SD7702) 7 1/4" Magnesium Worm Drive Skilsaw View Diagrams & Manuals
SHD77M (F012SD7707) 7 1/4" Magnesium Worm Drive Skilsaw View Diagrams & Manuals
HD77M-72 (F012HM7772) 7 1/4" Magnesium Worm Drive Skilsaw View Diagrams & Manuals
HD5860 (F01258600A) Worm Drive Skilsaw View Diagrams & Manuals
HD77-72 7-1/4 Worm Drive Saw w/Twist Lock View Diagrams & Manuals
9665 Disk Sander View Diagrams & Manuals
9750 (F0159750H1) Grinder View Diagrams & Manuals
5865 Power Saw View Diagrams & Manuals
MAG77LT (F012XD7700) Worm Drive Skilsaw View Diagrams & Manuals
MAG77LT (F012XD7701) Worm Drive Skilsaw View Diagrams & Manuals
HD77 (F012HD77LA) Circular Hand Saw View Diagrams & Manuals
SHD77M (F012SD7712) Circular Hand Saw View Diagrams & Manuals
HD77M (F012HM7700) Circular Hand Saw View Diagrams & Manuals
MAG77-75 7-1/4" Skilsaw View Diagrams & Manuals
SHD77-72 7-1/4" Skilsaw Worm Drive Skilsaw with Twist Lock View Diagrams & Manuals
SPT55-11 Saw 16 In. Worm Drive Sawsquatch Carpentry Chainsaw View Diagrams & Manuals
SPT70V-11 Saw 16-5/16 In. Magnesium Super Sawsquatch Worm Drive Saw View Diagrams & Manuals
SPT70WM-01 Saw 10-1/4 In. Magnesium Sawsquatch Worm Drive Saw; Saw Blade View Diagrams & Manuals
SPT77W-01 Saw 7-1/4 In. Worm Drive Saw; Sawblade View Diagrams & Manuals
SPT77W-22 Saw 7-1/4 In. Worm Drive Saw View Diagrams & Manuals
SPT77WM-22 Saw 7-1/4 In. Magnesium Worm Drive Saw View Diagrams & Manuals
SPT77WML-01 Saw 7-1/4 In. Lightweight Worm Drive Saw View Diagrams & Manuals
SPT77WML-22 Saw 7-1/4 In. Lightweight Magnesium Worm Drive Saw View Diagrams & Manuals
SPT77WML-72 Saw 7-1/4 In. Lightweight Worm Drive Saw With Twist Lock Plug View Diagrams & Manuals
SPT78MMC-01 Saw 8 In. Outlaw Worm Drive For Metal; Sawblade View Diagrams & Manuals
SPT79-00 Saw 7 In. Medusaw Worm Drive For Concrete View Diagrams & Manuals
SPT79A-10 Saw 7 In. Medusaw Walk Behind Worm Drive For Concrete View Diagrams & Manuals
SPT88-01 Saw 12 In. Worm Drive Dual Bevel Sliding Miter Saw View Diagrams & Manuals
SPT88-02 Saw 12 In. Worm Drive Dual Bevel Sliding Miter Saw; Diablo Blade View Diagrams & Manuals
SPT99-11 Saw 10 In. Heavy Duty Worm Drive Table Saw With Stand; Sawblade View Diagrams & Manuals
SPT99-12 Saw 10 In. Heavy Duty Worm Drive Table Saw With Stand View Diagrams & Manuals
SPT99T-01 Saw 8-1/4 Inch Portable Worm Drive Table Saw, Saw Blade View Diagrams & Manuals
SPT99T-02 Saw 8-1/4 Inch Portable Worm Drive Table Saw, Diablo Blade View Diagrams & Manuals
SPTH77M-01 Saw 7-1/4 In. Truehvl Cordless Worm Drive Saw, Saw Blade, Tool Only View Diagrams & Manuals
SPTH77M-02 Saw 7-1/4 In. Truehvl Cordless Worm Drive Saw, Diablo Blade, Tool Only View Diagrams & Manuals
SPTH77M-11 Saw 7-1/4 In. Truehvl Cordless Worm Drive Saw Kit With Truehvl Battery, Saw Blade View Diagrams & Manuals
SPTH77M-12 Saw 7-1/4 In. Truehvl Cordless Worm Drive Saw Kit With Truehvl Battery, Diablo Blade View Diagrams & Manuals
SPTH77M-21 Saw 7-1/4 In. Truehvl Cordless Worm Drive Saw Kit With 2 Truehvl Batteries, Saw Blade View Diagrams & Manuals
SPTH77M-22 Saw 7-1/4 In. Truehvl Cordless Worm Drive Saw Kit With 2 Truehvl Batteries, Diablo Blade View Diagrams & Manuals
SPT70WM-22 Circular Saw View Diagrams & Manuals
SPT70WM-72 Circular Saw View Diagrams & Manuals
SPT78MMC-22 Circular Saw View Diagrams & Manuals
SPT78W-01 Circular Saw View Diagrams & Manuals
SPT78W-22 Circular Saw View Diagrams & Manuals
SPTH70M-01 Circular Saw View Diagrams & Manuals
SPTH70M-02 Circular Saw View Diagrams & Manuals
SPTH70M-11 Circular Saw View Diagrams & Manuals
SPTH70M-12 Circular Saw View Diagrams & Manuals
SPTH70M-21 Circular Saw View Diagrams & Manuals
SPTH70M-22 Circular Saw View Diagrams & Manuals
SPT70WT-01 Bench Tool View Diagrams & Manuals
SPT70WT-22 Bench Tool View Diagrams & Manuals
SPT70WM-71 (A) 10-1 4 In. Magnesium Worm Drive Skil With Twist Lock View Diagrams & Manuals
SPT77W-71 (A) 7-1 4 In. Worm Drive Skil With Twist Lock Plug View Diagrams & Manuals
SPT77WML-71 (A) 7-1 4 In. Lightweight Worm Drive Skil With Twist Lock Plug View Diagrams & Manuals
SPT99-11 (B) 10 In. Heavy Duty Worm Drive Table Saw With Stand View Diagrams & Manuals
SPT99-12 (B) 10 In. Heavy Duty Worm Drive Table Saw With Stand View Diagrams & Manuals
Bosch
1677M (0601677039) 7-1/4" Worm Drive Saw View Diagrams & Manuals
1678A (0601678039) 7-1/4" Worm Drive Saw View Diagrams & Manuals
1677MD (0601677139) Circular Saw View Diagrams & Manuals
1677MDT (0601677239) Circular Saw View Diagrams & Manuals
1677C-100 (0601677168) Circular Saw View Diagrams & Manuals
1677DC-100 (0601677190) Circular Saw View Diagrams & Manuals
Show More Compatible Models
This item works with the following types of products:
- Drill Parts
- Drill Press Parts
- Saw Parts
- Electric Drill Parts
- Circular Saw Parts
- Sander Parts
- Grinder Parts
Repair Videos ?
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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.
No grease, worn out worm gear.
Gary - January 23, 2018
👍 1 of 1 people found this instruction helpful
Tool Type
Circular Saw
Difficulty
Medium
Time
1-2 hours
Tools Used
Screwdriver, Pliers, Socket set, Wrench Set, Torx bits
Took it apart and put it back together. Your parts diagrams really helped out a lot.
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Skilsaw would pop circuit breaker just hitting the switch
Scott - July 11, 2020
Tool Type
Circular Saw
Difficulty
Medium
Time
30-60 minutes
Tools Used
Screwdriver, Pliers, Socket set, Hammer
Found a youtube video. Someone else miss diagnosed the problem with the saw for it had a new trigger switch. The armature was bad as it had continuity from the winding bars to the shaft. Should be electrically isolated from each other. Replaced the armature but the saw would still trip the breaker. No schematic for the saw so back to youtube. found that the switch was miss wired. When you pull the trigger the switch makes contact side to side through the switch instead of front to back. Made the correction and saw works great.
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someone let the oil run out on a worm drive saw which destroyed the gear set and welded the bearings
Rich - February 1, 2017
Tool Type
Circular Saw
Difficulty
Easy
Time
1-2 hours
Tools Used
Screwdriver, Socket set, Torx set
I completely disassembled the saw ,all except the field . identified the parts I needed to replace and ordered online. then I cleaned the gear housing making sure to get all the gear debris out. sand blasted the gear housing the field housing the saw guards and powder coated everything .cleaned and polished the armature contacts .as soon as the parts showed up reassembled it .PUT OIL IN IT and was good to go just like new
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Armature commutator damaged by abrasive grit, have also done the replacement when the cooling fan shears off the armature
Thoms - September 8, 2016
Tool Type
Circular Saw
Difficulty
Hard
Time
1-2 hours
Tools Used
Screwdriver, Socket set, Wrench Set, Nutdriver, Adjustable Wrench, Bearing driver, armature jig (homemade), small impact driver
1. Drain oil from gearbox
2. Remove brushes
3. Remove guide plate
4. Remove large plastic plug from rear of saw
5. Remove nut behind plastic plug with impact driver while holding down while holding down saw blade stop..
6. Remove saw guide plate and front housing.
6. Press or drive armature out of gearbox brearing.
7. Install new bearing on commutator side of new armature using a simple jig to hold the armature.
8. Slide new armature into the gearbox housing.
9. Reinstall nut and carefully tighten with impact driver. This will pull the armature through the gearbox until it stops when the armature shoulder contacts the inner bearing race on the armature side of the gearbox. Take your time with this.
10. Reassemble saw.
11. Refill gearbox with oil.
12. Replace brushes.
Note: I've done this type of replacement a number of times on Skil circular saws without replacing the bearings on the gearbox side and not had any long term problems. But it is likely that Skil recommends replacing the two gearbox bearings as part of the procedure.
2. Remove brushes
3. Remove guide plate
4. Remove large plastic plug from rear of saw
5. Remove nut behind plastic plug with impact driver while holding down while holding down saw blade stop..
6. Remove saw guide plate and front housing.
6. Press or drive armature out of gearbox brearing.
7. Install new bearing on commutator side of new armature using a simple jig to hold the armature.
8. Slide new armature into the gearbox housing.
9. Reinstall nut and carefully tighten with impact driver. This will pull the armature through the gearbox until it stops when the armature shoulder contacts the inner bearing race on the armature side of the gearbox. Take your time with this.
10. Reassemble saw.
11. Refill gearbox with oil.
12. Replace brushes.
Note: I've done this type of replacement a number of times on Skil circular saws without replacing the bearings on the gearbox side and not had any long term problems. But it is likely that Skil recommends replacing the two gearbox bearings as part of the procedure.
Did you find this story helpful?
Thanks for voting and helping fellow customers!
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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.
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