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PSI Woodworking

PSI Woodworking L5818 Lathe Headstock Spindle Adapter 5/8" Shopsmith to 1" x 8tpi

    • Based on 1,824 reviews
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Availability: In Stock.
Fulfilled by Amazon
Arrives Thursday, May 2
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Size: Shopsmith 5/8" to 1" x 8tpi


Features

  • Convert a Shopsmith 5/8" non-threaded lathe headstock spindle to 1" x 8tpi threaded
  • Allows a 5/8" non-threaded spindle to accept 1" x 8tpi threaded chucks, faceplates, and other woodturning tools and accessories
  • Made of steel; Weighs .65 pounds; Extends spindle length approximately 1-1/4"
  • Includes set screw to lock the adapter to the spindle
  • Flats allow for solid wrench tool grip for tightening and loosening from spindle; Wrench not included

Description

Converts your Shop Smith lathe spindle so that you can use chucks with a 1" x 8 tpi thread size. Adapts to your 5/8-inch no thread spindle to accomodate any 1" x 8 tpi female mount accessory. Made of steel, and has set screw to tighten to the flat on the spindle. Extends the spindle length over 1-inch.


Brand: PSI Woodworking


Material: Alloy Steel


Item Weight: 0.65 Pounds


Compatible Devices: Lathe


Included Components: Spindle Adapter


Manufacturer: ‎PSI Woodworking


Part Number: ‎L5818


Item Weight: ‎10.4 ounces


Product Dimensions: ‎4.5 x 2.5 x 2.5 inches


Country of Origin: ‎China


Item model number: ‎L5818


Size: ‎Shopsmith 5/8" to 1" x 8tpi


Style: ‎Headstock Spindle Adapter


Material: ‎Alloy Steel


Item Package Quantity: ‎1


Included Components: ‎Spindle Adapter


Batteries Required?: ‎No


Warranty Description: ‎2 Years Under Normal Use


Domestic Shipping: Item can be shipped within U.S.


Date First Available: November 10, 2006


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, May 2

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.

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Top Amazon Reviews

    • PSI Woodworking LA341018 Lathe Headstock Spindle Adapter 3/4" x 10tpi to 1" x 8tpi
Size: 3/4" x 10tpi to 1" x 8tpi
Works as expected.....Recommended...!!
Reviewed in the United States 🇺🇸 on April 11, 2023 by CR
    • Lathe Headstock Spindle Adapter
Size: Shopsmith 5/8" to 1" x 8tpi
Part allows me to turn bowls and round mallet bases on an 80 year old lathe. Fits perfectly.
Reviewed in the United States 🇺🇸 on February 20, 2023 by Wood Lathe hobbiest
    • Great quality
Size: Shopsmith 5/8" to 1" x 8tpi
Fits as it should, works flawlessly.
Reviewed in the United States 🇺🇸 on February 23, 2023 by Amanda
    • Heavy adaptor with good concentricity that can be improved with a few modifications.
Size: 1-1/4" x 8tpi to 1" x 8tpi
I bought this adapter when I upgraded from an (very) old Delta lathe with 1 x 8 treads to a newer Jet 1824 electronic variable speed lathe with a 1 1/4 x 8 spindle. I had a large collection of faceplates, including some that were made into vacuum chucks that fit on the Delta spindle but not the Jet. It probably would have cost more than $150 to replace all these faceplates. Instead, I purchased this adapter. It also let me use the new lathe to finish a couple of projects that were in progress. The adapter was much more substantial than I expected for the price. In general, it seems very well made. I had two issues with it, both of which could be addressed with minor modifications. First, when I initially mounted a faceplate to the adapter and then to the late, I had a lot of wobble in the faceplate. At first I thought that the adapter was non-concentric. But the problem was that the thread on the PSI adapter bottomed out on the female threads of the faceplate and prevented the shoulder of the adapter mating with the shoulder of the lathe spindle. The wobble was reduced very significantly by making a 3/16 inch plywood spacer and mounting it between the adapter and the faceplate. It still has a minor wobble, but I am not sure if that is the result of the lathe spindle, the adapter or the faceplate. If the PSI adapter had been manufactured with a slightly shorter threaded portion use of a spacer would not have been necessary. Secondly, this adapter is solid, and therefore cannot be used as is with a vacuum chuck. I solved this problem by drilling a 3/8 inch hole down its length. The adapter is not hardened so its easy if you take your time. I was able to get a different spindle adapter for my Teknatool G3 chuck, so I will not be using this PSI adapter for use on the 4 jawed chuck. I think that changing out the chuck adapter is probably much better that use of this PSI adapter with a chuck, both because of concentricity and because the headstock to bowl distance is as short as possible. Overall I am satisfied with this purchase. ... show more
Reviewed in the United States 🇺🇸 on June 22, 2015 by Phycophile
    • Good Quality, Great Price
Size: 1-1/4" x 8tpi to 1" x 8tpi
Review Image by Jeff Jeff
Review Image by Jeff Jeff
Review Image by Jeff Jeff
Review Image by Jeff Jeff
Review Image by Jeff Jeff
The above picture of this adapter doesn't do it justice. I was surprised at the quality. This item is a large, heavy weight, finely machined and polished spindle adapter. Both ends screws on smooth. It's top quality at a price that's cheaper than PSI (Penn State Industries), sales it for. And a lot cheaper than other adapters are sold for. View my photos for more detail. It turns true and on center. It doesn't have set screws to lock it to the spindle for reverse operation, but I can drill and tap a couple of holes for set screws if it becomes necessary. It has a solid core on the male threads so you can't use a vacuum chuck. On the female end there are two flat spots for a wrench if necessary. I use an 'Adjustable Slip & Lock - Plumbers Nut Wrench,' its cheap light weight and can accommodate the large size of the adapter (search Amazon # TW408302). The adapter does jamb tight against the chuck and/or spindle so the wrench might come in handy. The nut wrench is also sold at local home improvement centers. This adapter screwed nicely onto my lathe's spindle, right over the shoulder of the spindle to mate with the shoulder of the adapter, as if it was made specifically for my lathe. I did read a magazine Q & A article where someone said their adapter didn't screw on far enough to seat onto the shoulder of the spindle and was asking if he could use a stack of large washers to fill in the gap. The answer was - not a good idea to use washers from the hardware store due to variation in hole ID and thickness from one washer to another. It was suggested to use 'Anti-Lock Lathe Spindle Washers' to fill in any gaps (search Amazon, about $2). Maybe this might help others, but it was not an issue with my lathe. Specs: OD at female end: 2 1/16" Depth of female pocket: 1 1/2" Depth of shoulder inside female pocket: 1/4" Length of male threaded end: 1" Total length: 2 3/4" Wrench size to fit flats: 1 13/16" Weight: 1 lb. 4.8 oz. [See my photos for more detail.] ... show more
Reviewed in the United States 🇺🇸 on May 18, 2010 by Jeff Jeff
    • I had to modify it to fit
Size: Shopsmith 5/8" to 1" x 8tpi
The product appears to be well built, but in order to use it on my older Shopsmith, I had to use a Dremel tool with an abrasive stone to ream it out (not much, but it was not going on without doing so). It is supposed to fit the 5/8" arbor on the Shopsmith. It does now. Tight tolerances.
Reviewed in the United States 🇺🇸 on January 3, 2023 by R Martin
    • Beware - I checked it to a 4" Lathe chuck and locked onto shopsmith - but
Size: Shopsmith 5/8" to 1" x 8tpi
I turned it on, shut the shopsmith and as it was winding down, the lathe chuck unwound from the adapter. LUCKILY , I had a hockey puck in the jaws of the chuck and as the lathe chuck came lose, the hockey puck kept the chuck from flying off because as the chuck unwound, the puck pressed against the drill bit I had in place. If this went flying, with its sheer weight could have easily killed or mamed me or anyone around. I believe with he force, it would easily go thru a wood wall and damage whatever is on the other side. I don't know what to do to hold this from spinning off when winding down, please feel free to help I just applied red loctite to the threads and will wait 24 hours to cure, but would feel better perhaps drilling a hole, tapping it and inserting a set screw, but I really hate to alter the chuck as it is perfect and I may drill thru something that aligns the heads so feel it is above my pay grade to do this. ... show more
Reviewed in the United States 🇺🇸 on January 23, 2021 by MKB
    • Great, but Needs a Breaker Bar Hole
Size: 1-1/4" x 8tpi to 1" x 8tpi
Great adapter - heavy, durable, and dead-on centering - Can move work from "small" to "large" lathe without any changes or eccentricity. Only complaint is that there is no breaker-bar hole to disengage it. Instead there is a skinny 1-7/8" wrench flat - what turner has a 1-7/8 wrench sitting by their lathe? None of them. Should have a breaker-bar hole, like every other lathe accessory in the world. ... show more
Reviewed in the United States 🇺🇸 on January 10, 2022 by John D Renner

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