Search  for anything...
BLSGBUIDING

Bench Grinder Motor Shaft Arbor Extension, 1/2" and 5/8" Motor Arbor Threaded Shaft Adapter Longer Version, Fits for Buffing Grinding Wheels - Right 1 Pack

  • Based on 473 reviews
Condition: New
Checking for inventory...

Notify me when this product is back in stock

$13.99 Why this price?
Save $1.00 was $14.99

Buy Now, Pay Later

As low as $3 / mo
  • – 4-month term
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

FREE 30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: Unavailable
Fulfilled by Amazon
Available payment plans shown during checkout

Recently Viewed

Size: 1/2" & 5/8"-Longer Version


Style: Shaft Arbor Extension- 1 pack


Features

  • FunctionThis Shaft Arbor Extender is designed to convert 1/2" or 5/8" shaft electric motor to 1/2" threaded shaft buffing machine, or transfer 5/8" Bench Grinder shaft to 1/2"
  • AdvantageMake your Motor like a transformer, save your money, just a small Motor arbor shaft extension adapter can create a new grinder or buffing machine
  • Using MethodAttach the tube side to your motor arbor or bench grinder shaft, fasten the hidden screw to make it fastness, use the 2pcs washers sandwich cinch the buffing/grinding wheels etc, then tighten the nut and start buffing work
  • ApplicationThis Electric Motor Arbor Threaded Shaft Adapter suitable for mounting Buffing wheels, Polishing wheels, Grinding Wheels, Wire brush wheels, as long as the arbor hole is 1/2"
  • DimensionTube side OD x ID x L:7/8" x 5/8" x 2-5/8"; Inner adjust tube ID:1/2"; Screw side dia x L:1/2" x 2-1/4"; Hex nut dia:13/16"; Washer dia x thickness: 2-1/8" x 1/16". Material: steel. Please make sure the size matches your needs before you buy

Description

Size: 1/2" & 5/8" Motor Shaft Arbor Extension Adaptor Package includes: 1 set 1/2" & 5/8" Motor Shaft Arbor Adaptor: ------Main body 1pc, inner adjust tube 1pc, tighten screw 1pc, washer 2pcs, hex nut 1pc, L-shape hex wrench 1pc Detail size: Tube side OD x ID x L：7/8" x 5/8" x 2-5/8"; Inner adjust tube ID：1/2"; Screw side dia x L：1/2" x 2-1/4"; Hex nut dia x thickness：13/16" x 3/8"; Washer dia x thickness: 2-1/8" x 1/16"; L-shape hex wrench: long part 2-1/4", short part 7/8". Q & A: What’s the function of this shaft arbor adaptor designed for? This Shaft Arbor Extender is designed to convert 1/2" or 5/8" shaft electric motor to 1/2" threaded shaft buffing machine, or transfer 1/2" or 5/8" Bench Grinder shaft to 1/2" thread shaft. What kind of wheels it is suitable for mounting? This Electric Motor Arbor Threaded Shaft Adapter suitable for mounting Buffing wheels, Polishing wheels, Grinding Wheels, Wire brush wheels, as long as the arbor hole is 1/2". How to use? Attach the tube side to your motor arbor or bench grinder shaft, fasten the hidden screw to make it fastness, use the 2pcs washers sandwich cinch the buffing/grinding wheels etc, then tighten the nut and start buffing work.

Brand: BLSGBUIDING


Material: Alloy Steel


Style: Shaft Arbor Extension- 1 pack


Manufacturer: EMILYPRO


UPC:


Package Dimensions: ‎5.71 x 5.28 x 1.18 inches


Item Weight: ‎10.9 ounces


Manufacturer: ‎EMILYPRO


Item model number: ‎9


Date First Available: ‎March 24, 2020


Frequently asked questions

This product is currently out of stock. Please check back later for shipping info.

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • A value priced motor accessory that makes my motor more useful and me happy.
Size: 1/2" & 5/8" Style: Shaft Arbor Extension- 1 pack
This is not a Vine program item. I paid for this out-of-pocket. Pros: Everything you need is in the package. While this is not a high-precision item, It functioned perfectly. It installed easily on the 1/2 inch shaft of my 1/4 hp motor. I tried it out with a 6 inch buffing wheel and a six inch wire wheel. It ran very smoothly. I really can't say that it was completely without vibration, but I saw no effect on the wheel operation or on the motor. Cons: None as to the actual use of the adapter. BUT, as noted by an other reviewer, the threaded shaft and nut are propriety to the manufacturer and not any standard thread size. This means that you can't buy or thread another nut if you lose or damage it. Another drawback is that you get only one nut, which means you have no available replacement and you can't adjust the position of the wheel further out on the threaded shaft away from the motor body so as to have more working room. Conclusion: The is a bargain price for a very versatile decently made arbor adapter. I liked it so much that I ordered a second one and had the same results as with the first. I did not have any of the quality control issues mentioned by other reviewers. I'm getting a whole new use out of my motor. It's worth the buy. TO THE MANUFACTURER: Please improve this item by using a common standard thread size, Metric, SAE, or other. Please also include another nut in the package. Or, at least provide a way to obtain replacement parts, specifically the nut for the threaded shaft and the set screws to secure the attachment to the motor shaft. Make this into the 100% well-designed product it should be. FOLLOW-UP: After a year of use, I found that the limitation on this adapter is about six inches and the wheel should be light, i.e. wire wheel or buffer. An eight inch wire wheel caused too much vibration (probably as much because it isn't perfectly balanced) and I would not attempt a heavy grinding wheel. Otherwise, the six inch wire wheel, buffers, and smaller abrasive wheels still works perfectly. ... show more
Reviewed in the United States on July 10, 2024 by Name unimportant
    • BLSGBUIDING Bench Grinder Motor Shaft Arbor Extension
Size: 1/2" & 5/8"-Thicker Version Style: Shaft Arbor Extension- 1 pack
Review Image by LaNae Vess LaNae Vess
Review Image by LaNae Vess LaNae Vess
The media could not be loaded. Fast delivery, product in excellent condition, works great to covert old washing machine motors or old a/c blower motors into bench grinder/ buffer or knife sharpeners. Easy to assemble, minimal vibration level , build quality was excellent.
Reviewed in the United States on January 17, 2026 by LaNae Vess LaNae Vess
    • mIssing parts----
Size: 1/2" & 5/8"-Thicker Version Style: Shaft Arbor Extension- 1 pack
You should not use this to "extend" your buffing machine. ONLY use this on your machine's original motor axle. I tried to attach it to the already present 1/2" attachment to the motor axle and it stripped all the threads on that. Had to order a replacement. My only use now would be if I switch to 5/8" buff size, but I cannot find sisal buffs in 5/8" size that are of good quality, usually they are too rough and leave streaks on the soft metal I am trying to polish out, so won't be using this anyway. The only good sisal buffs I've found are on Caswell's site but they are half inch holes. ... show more
Reviewed in the United States on January 28, 2025 by D. Stephens
    • Works Great - Couldn't be Happier
Size: 1/2" & 5/8"-Thicker Version Style: Shaft Arbor Extension- 1 pack
I purchased two of these shaft arbor extensions to be used on an old CRAFTSMAN dual arbor electric motor I just got. Both extension arbors fit and worked very well on this motor. This motor has 5/8” shafts and there is no wobble or anything like that. They tightened down very well and didn’t come loose during use. On the Craftsman motor that I specifically purchased these for, I am using an 8”x1” thick nylon fiber wheel on one side and an 8” DeWalt wire wheel on the other side and I couldn’t be happier. Absolutely no problems whatsoever. Works great! When this thing is running, it throws so much wind, you would think you are standing in front of a fan. I think these are very good quality and very reasonable priced. ... show more
Reviewed in the United States on September 24, 2024 by Glenn
    • I made a machine
Size: 1/2" & 5/8"-Longer Version Style: Shaft Arbor Extension- 1 pack
I put this on the arbor of an old electric motor. I bought 3 flap sanding wheels and use it to burnish small wooden objects. It worked so well that I bought another one. You get a hex wrench to tighten the screw that goes on the arbor. The whole thing now is useful in my shop. They are well made.
Reviewed in the United States on August 28, 2025 by David M.
    • Pin
Size: 1/2" & 5/8"-Thicker Version Style: Shaft Arbor Extension- 1 pack
It seems like a quality product but I will return it because it's the wrong size
Reviewed in the United States on November 4, 2025 by David
    • Good fit. Worked for me
Size: 1/2" & 5/8" Style: Shaft Arbor Extension- 1 pack
Nice fit on a 1/2” shaft. Used bushings to adapt to various wheels, mostly fiber deburring wheels. No problems with vibration.
Reviewed in the United States on January 15, 2026 by RG
    • Outstanding customer service
Size: 1/2" & 5/8" Style: Shaft Arbor Extension- 1 pack
This arbor fits a motor shaft well and runs true. Mine came missing one of the set screws but I didn’t want the hassle of returning the item. Otherwise, would have rated higher Update: After posting the above review, the seller reached out to me and offered a full refund based on the missing part. This was completely unexpected and represented above and beyond quality service. More than compensates for the missing part. ... show more
Reviewed in the United States on September 13, 2024 by Phil

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for inventory...