South bend heavy 10 spindle thread. and a 5C collet bore I.

South bend heavy 10 spindle thread Do I need something that is specific to South Bend or can I adapt something? What should I be looking for. Details: South Bend Heavy 10R. Joined Feb 13, 2006 Location Rock Tavern, NY. I have checked with the South Bend parts department and they can not tell me what size pulley I need. 19957R, Tooling- 6″ Buck 3 Jaw Self Centering Chuck, Buck Hello to all I am trying to find a post by bradjacob on rebiluding the heavy 10 tailstock with a longer spindle. aametalmaster Of course I bought my Heavy 10 used and it's reasonable to think that my lower pulley is original. I get the direct drive and the back gear OK, I think. Somebody said in another thread that I read yesterday that the two plugs in the center of the cap means the superfinished spindle and cast iron bearings. This is heartily annoying, but it can't be helped. The light 10 or 10K will have the flat handle and the 10L or heavy ten will have the little bat handle off the main lever. I've been working on a friend's South Bend, a wide 9" built in 1927; the compound has a V-thread at 16tpi, Up for sale is this Rare South Bend Heavy Ten Toolroom engine lathe (10L). R should be spindle type. Jan 10, 2018 #1 My 10L came with everything except the spindle sleeve (my spindle is the standard threaded one with 1 3/8" bore). Google "south bend heavy 10 spindle taper". They contain additives that can prove harmful to the machine over the long run. The thread on the spindle is 1. In practice thou, most of the work I do is 5C collet work. The Spindle gits are filled with oil which is a good sign. Apr 22, 2023. Trust me: this is the correct move and you won't look back. This should give you the spindle bore you want. Joined Jul 9, 2010 Location Virginia, USA. It is a Morse taper O. Thread starter Pellethuntr; Start date Jan 24, 2018; Replies 18 Views 6,794 P. Next Last. South Bend made an adapter for the spindle (actually more than one size) that reduces to Morse #3 taper or to a #2 taper. 0015". It is the same taper per inch as the Morse taper 3 but it is larger. SB Heavy 10 Spindle SB Heavy 10 Spindle Speed Chart. 375" thru-hole in the spindle. m. is R which should be heavy 10. Thread Tools. The 1 3/8" spindle bore will accept 5c collets. In order to use a #3 or #2 Morse taper center, you must procure an adapter. Check with the Yahoo South Bend site under files section for more info. Have seen bronze washers with locating pin for that side on ebay though. 10R is the Heavy Ten lathe w/ Regular spindle bore (not 5C capable), that is 1-7/8 X 8 TPI spindle thread. This is a late model South Bend Heavy 10 with the long bed that's been hardened. Any help or leads greatly appreciated . That is one of the most common thread sizes for lathe spindles. 9) stick a broom stick in the spindle nose, and push down hard. pdf. drivadesl Plastic. Thread starter Paul Farley; Start date Jan 24, 2008; Replies 18 Views 6,305 P. Yes it is from my point of veiw because the #5MT dead center i have will fit perfectly in my heavy 10. Heavy 10 cross slide screw, small dial. Always wanted a D-? spindle nose but just not cost-worthy for me to convert. 6. I have seen some where in the past South Bend brass plates with posted speeds. Replies 30 The heavy 10 also came with a smaller size spindle bore. 2. I got the bearing kits from South Bend. Heavy 10 10" x 30" Gearhead Lathe Product Dimensions Threading Info Number of Longitudinal Feeds Signature South Bend 3 V-Way Bed 2-Speed Motor with Inverter for Single-Phase Power Supply All Gearhead Headstock 4-Way Tool Post Spindle Spider Included for I been trying to find the spindle speeds for both my 9 inch (1947) and heavy 10 (1976) Both are 6 speed flat belt. Zero the indicator. What is the correct size thread for a Southbend Heavy 10 (10L) lathe. i just put a Baldor 1HP 3ph 1140 rpm motor driven by a Teco EV on my 9"- i can sustain about 50 rpm at the spindle with no danger of overheating but i would not consider it a replacement for the backgears. This has I am in the process of restoring my South Bend 10 Heavy when I noticed that my bearings seem quite scored. gorilla! I've soaked the threads with penetrating oil and it has sat for 24 hours. The perfect gunsmithing lathe. You can buy one from SB, Ebay or make one yourself. alg4884 First letter after no. I noticed the letter "F" stamped on each of the old expanders in the machine, indicating the "front". For ten threads, the spindle is During a recent quest to improve the turning finish on my 10L, I tightened up the split nut on the left end of the spindle. 375 spindle bore? K. I have this 10" SB lathe. The 10L has a special taper I believe is it is close to a MT 5. K. To do this, I had to take the bull gear off the spindle. (10R has a smaller bore and 1 7/8 spindle nose thread) Everything you see was stripped to bare metal, primed, and painted 'plain old grey'. Grizzly sells a Chinese one for a little over $100. For a South Bend lathe just make sure it uses a 2 1/4-8 spindle thread. 14 should be revision no. The 10R (regular) had a threaded spindle size of 1-7/8"-8, a through hole of 1", the max collet was Hello, Would anybody have a picture and rough dimensions for a Heavy 10 lead screw with a single tumbler box and a 4' bed? I mostly need information for the gearbox end, as I can get a 4. A light ten has something like a 0. i have probably ran it 10 hrs with no problems -CONVERTING A SOUTH BEND HEAVY 10 SMALL DIAL CROSS (1). Threaded chucks could come off while running in reverse with a heavy cut. 10K Spindle removal I have read some threads regarding spindal removal for heavy 10s and other largeer South Bends. Thread I doubt that South Bend would have used an Acme thread , because it's a lot more expensive to produce . 1 of 2 Go to page. South Bend Spindle. Up to now it has pretty much been disassembly, clean, strip, paint and reassemble. Thanks for any help. As I will indicate the round part in to run dead true. The spindles were ground to 15-20 micro" and hardened to 51 to 55 RC They received shell bearings after the war ended in 1946. 25"-8) which is the same as most versions of the SB heavy 10 (10L) and also some other lathes such as Logan. jwearing; Mar 25, 2024 Up for sale is this Rare South Bend Heavy Ten Toolroom engine lathe (10L). This greatly improved the I posted in my 13 thread, the bearrings, i found on ebay . South bend spindles were all different. South Bend offered an optional "Independent Power Feed" that included a 'special high speed drive which provides spindle speed ranging from 55 to 2400 rpm,(37 to 1600 for the 13") and a seperate motor with gearing for driving the power carriage feeds INDEPENDENT of the lathe spindle speeds. I also bought new capillary wicks, bearing expanders and shims from Ted. Thread starter Splat; Start date Jun 3, 2012; Splat Active User. Model #CL 187 ZB. 14" . 1 3/8 inches) but the spindle Parts and diagrams for the H-10. Removing Gears On Heavy Removing Gears On Heavy 10 Spindle. Dconway00 Cast What a great bunch of people here on the South Bend Lathe forum. An easy cut and paste to lookup, New Jersey. 5' lead screw and cut it down, but I need to make sure what the end looks like without tearing my lathe all apart before I'm ready to switch beds. Heavy 10 Spindle Oilers. Please see the pic for the one that I need. Got some I have 3-jaw and 4-jaw chucks for my Heavy-10. I would look long and hard at the Heavy Ten, the 1-3/8" bore will accept most rifle barrels if that is what you have in mind for it. Thread starter abooker; Start date Aug 21, 2013; 1; 2; Next. and a 5C collet bore I. The H10 can take 10 times the cut that the @tlas can. It sounds like you have the draw bar but you will need the taper sleeve that fits the spindle nose to accept the 5c collets. Only difference is the small bore spindle, which also has a smaller nose thread. Hello sbrmike, hobby gunsmithing is what brought me to PM. It has a double row of smaller bearings in a bronze casing, it measuse close to the orginal. Thread starter SLK001 Start date Coral Springs, FL USA. I bought a spindle from a 10L lathe ( 2 1/4 - 8 thread) complete with bearings and bull gear, on eBay for $90. Thanks Much Chet . One of these days, I intend to get one. As a point of information, my old 1964 South Bend catalog lists 5" & 6" 3 jaw chucks, and 6" & 7-1/2" 4 jaw chucks for the 10" lathe. 000005" r. Can any help me with find this post. Derek Smalls. Heavy 10 drive belt? Thread starter RickWG Start date Apr That sounds like one of the versions that South Bend used to sell. A There is a brass tag on the housing that covers the gears that control the lead screw that lists threads, spindle, and screw in three columns. WTB Spindle for Heavy 10 2-1/4"-8. Came with a steady rest, 4 chucks, 31 hardinge collets, mounting plates, dogs, Spindle protectors, quick change tool post South Bend Heavy 10L Spindle Adapter Problem. The chuck is a screw on/off and the chuck must have been tightened by an 800 lb. 0006" runout as received, my spindle is within . Similar threads. The most desirable of all the South Bend 10" lathes It has the D1-4 cam lock spindle and the 1 3/8" hole through the spindle with the short headstock. 10, B - Mobil DTE Hydraulic Oil 25 or DTE Machine/Turbine Medium Heavy, C - Mobil Vactra Way Oil No. Your #2-#3 dead center would go into this much like into your tail stock. K should be gear box. Take care, Matt I just purchased a used heavy 10 and I am replacing the bearings for the spindle. B. What is the spindle thread? Threaded spindle on heavy 10's were 1-7/8 x 8tpi or 2-1/4-8tpi. Thread starter drivadesl; Start date Sep 27, 2006; Replies 1 Views 669 D. I have both the #2 & #3 adapter sleeves and a #2 that I made. There may be issues with using this method with other machines, but I am sure that Keep in mind that the spindle adapter is in no way a South Bend only part. They are very nice quality clocks and perfect for the South Bend Lathe aficionado. A quick check of the SB website shows that "X" under the "Special Spindle and/or Swing Type catagory is listed "Special" My spindle has a Camlock mount. Fortunately, the spindle from a 10L is a direct swap South Bend called this lathe the 10 inch 11/16 Good condition South Bend 10" "Heavy Ten" Metal Lathe, 1960's model, double-tumbler quick change gearbox (extended range) large spindle hole, threaded chuck mount (threads are in great shape), three-jaw chuck (resting on the lathe bed), thread dial, lever-type collet closer with nose and collet, dial indicator stop, flame hardened bed, large satin chrome dials, 3-1/2' bed I have finally reached the point of getting the spindle back into the headstock on my Heavy 10 project. Please don't attempt to modify your actual spindle. South Bend Heavy 10″ x 20″ Metal Lathe Cabinet Model , English/Metric Threading, Catalog Number CL187ZB, Serial No. Heavy 10 Plain Bearing Spindle Adjustment. E. I can send or post a picture of the one(s) I have for my Heavy 10. I've seen one account of a heavy 10 rebuild done by South Bend in which the threaded spindle was replaced with a D1-4" spindle. The lathe is in good condition, the ways have a dip of only . Looking at page 23 of the South Bend how to run a lathe, I figure I have 12 speeds available to me. Thread starter Nelson; Start date Oct 30, 2016; Nelson Site Founder. I for some reason thought it to be 2 1/4 -8 but it measures over 2. In other words it is further up or bigger. nationaljukebox- That's a nice looking lathe ! I made the same spindle swap on my 10R lathe ( 1 7/8 - 8 spindle nose thread). The 10EE was normaly equiped with 8" chucks, which are a little big on an heavy 10. The bull gear had a missing tooth, but otherwise the spindle assembly was in good shape. All that said, a 6" 3-jaw is just fine for a Heavy-10. 5026bruce (805) 100% positive; Seller's other items Seller's other items; We have a South Bend Heavy 10 lathe in a common area which can be used by several people. As soon as i get the spindle back ($$$$) I will do the bearing build sequence. Heavy 10 Plain Bearing . This is the pulley this is on the motor shaft. 002" fit counterbore to shoulder. This accessory installs easily on these South Bend Lathes without having to modify the gear cover. This has most commonly found with 2-1/4" x 8 tpi threaded spindle. Borealis; Feb 10, 2024; General; 2. It is a "light press fit", so not much force needed to press the bull gear off the spindle. May 11 That depends. As a result, the center has to stick out further so South Bend made a different sleeve that is longer. 6 KB · Views: 27 -Long_ Taper_Key_and_D1_Cam_Lock_Headstock_Spindles_961A. There's also a picture in How To Oil An Lathe that says the superfinished spindle has a lubrication notice on the tag; mine has the tag and the plugs in the middle of the cap, so I thought it was superfinished and cast I purchased a heavy 10 at an auction with the idea of it replacing my 9. Show Printable Version; 12-07-2007, 08:31 PM #1. My new backing plate got a very good fit on the thread and gave it a . Ted . g. BTW: I have a few to sell Ted [email protected] This is a continuation of the heavy 10 spindle speed topic. I ordered the parts manual for it. This is a very late model unit and from what I can find it was made in the late 1990’s. Plain bearing spindle design. Both are 6" I prefer to use a 4-jaw for most work, even for round parts. It seems to be in good shape although there are some odd things about it. Dec 7, 2021. Are these bearing still serviceable, if not, what are my options? Flickr: Page Not Found Once the cam lock spindle nose became the standard, the threaded spindle nose (2 1/4 - 8 TPI, not 1 1/2 - 8 TPI) was available as an option on the heavy 10, as well as the L-00. Can anybody tell me the diameter of the heavy 10 spindle where the bull gear sits? Thread starter bridgeport; Start date Jul 15, 2010; Replies 2 Views 1,312 bridgeport south bend heavy 10 "tool room" lathe. Others have reported the same type of inaccuracy. This case a 2-1/4" thread, max spindle through bore is 1-3/8". The good: It has all the bells and whistles, a lever style collet closer, taper attachment, 4' bed. 875" thru-hole. This is the small one that fits on the swing cover. and that is open ended, Heavy 10 Spindle Sleeve Questions. Surfing the thread "Show us your South Bend Lathe, page 5", in this Forum, a H-M So, I am more qualified that most to speak about this, as I actually HAVE an @tlas 12" lathe, and right now I am looking for a South Bend heavy 10. Remy. 231" A heavy ten will have a tumbler feed reverse which doesn't require a wrench of any sort to switch. A VFD was added, as well. Setco has serviced machine spindles for me for years, so I trust the accuracy of their work. Sounds like you need a spindle adapter for a heavy 10 spindle to a MT2. Not to say never, but mostly you are not pushing the spindle the opposite way. abooker I believe a heavy 10 has a 2 1/4 spindle thread. It is a far better bearing than was orginal in the lathe. I have a Heavy 10 with a D1-4 spindle. , on my 10L, I have a different adapter to take 5C, but a 10R might not even take a 5c I Recently made a backing plate for a 5" 3 jaw chuck that will share duty on my RT and my SB heavy 10. 10) pull up on the broomstick hard, read the TIR on the gage. Pellethuntr Plastic. May 7, 2020 #2 That's a 10R, not a 10L. SOUTH BEND LATHE WORKS . The adapter goes from Morse Taper #4 to the 2A collets Collets Included 1/16, 3/32, 1/8, 9/64 A SB heavy 10 (with 1 3/8" headstock spindle bore) has a taper that is (or seems to be) the same taper per foot as a #3 Morse taper. That spindle looks smaller than 1-7/8 but the photo may be misleading. I am hoping those with the Heavy 10, and the original motor and pulleys will check theirs and let me know what they have. I am the proud new owner of a 1973/74 Heavy 10L that I purchased from a local high school! It needs a thorough cleaning, a new cross feed nut and a set of new felt wipers. I’m looking on ebay at a “South Bend Heavy 10”x 36” center lathe”. Remy; Oct 28, 2021; South Bend Lathes; Replies 10 Views 2K. Dec 3, 2019 #1 When Similar threads. All that is left is to paint the apron and saddle, reinstall the chip pan, and move it to it's permanent place in my shop. 0001". Paul I learned it from the fellow who sold me my lathe. This came up on the Yahoo South Bend Group a while back and one of members the said is was an extended MT4. (E. Sep 27, 2006 #1 I've Similar threads. Example, but not sure of OD or ID, contact seller for specs: SOUTH BEND 10L HEAVY 10 REPLACEMENT THRUST WASHER | eBay If your lathe is Heavy 10 then the spindle taper is a #3 special. 776. In search of a South Bend 16 5C collet adapter and spindle thread Spindle thread is per SB catalog standards number codes is a "CL" which means threaded. Page 68 Pictures just don't do them justice. Joined Jun 1, 2017. I thought heavy 10's were 1. Later South Bend introduced the large spindle Heavy 10 catalog CL-187 known as the 10L. After which the 10R was referred to as "Regular" in sales literature where as the 10L was referred to One of the first thing I notice in a picture is the half nut lever. Hope this helps. 6) remove all tooling from the spindle 7) slack the thrust bearing 8) place the point of a tenths reading indicator on the spindle nose, right as it emerges from the headstock. Heavy 10 spindle bearing types. Pulled the spindle For the lead screw you really need to brush up on what makes an accurate enough ACME thread to be used as a lead screw. Where could I find what Yes, there was a 10R South Bend lathe that can also be called a "Heavy 10" . Find many great new & used options and get the best deals for South Bend Heavy 10 Lathe 5C Spindle Adaptor And Thread Protector at the best online prices at eBay! Free shipping for many products! Skip to South Bend Heavy 10 Lathe 5C Spindle Adaptor And Thread Protector. I am in the Go here for a South Bend data sheet with the dimensions you are looking for: http So, The spindle is going to Setco spindle rebuilders for a grind, hard chrome,grind service before I can fit a bearing to it. It should also have a 1. There's a thread on practical machinist that discusses this subject and they say the 10l's designed for collets can have either 2 1/4 x 8 spindle nose or D1-4 cam lock and these lathes used a taper which is the same in/ft as a mt 3 but the large end is 1. Collets can be added for a price. According to South Bend, it was delivered in 1958 as a Toolroom lathe, hardened bed, taper attachment, etc. Jan 16, 2023. however 10L is the Heavy Ten lathe w/ Large spindle bore (5C capable). This particular The South Bend “Heavy” 10 lathe (officially the 10-L) is a substantial lathe built on traditional South Bend design – triple V-ways, plain bearing spindle, and flat belt drive. I received the bearing kits and the small bearing kit did have the "F" stamped on the expander. I also have a heavy 10 with the same spindle you have. 5c is a nice collet on the heavy 10. The light ten will have a 1&1/2" x 8tpi threaded spindle thread size Spindle thread size for a SB 13 would be 2-1/4"-8, (2. The trick with your 10 will be finding chucks small enough to use. I have a 1963 10" SB toolroom lathe with a 2-1/4"-8 TPI spindle. D. However the diameters are not standard #3 Morse taper as you have determined. Later models are found with the above mentioned threaded spindle plus the additional L00 and D1-3 spindle Good condition South Bend 10" "Heavy Ten" Metal Lathe, 1960's model, double-tumbler quick change gearbox (extended range) large spindle hole, threaded chuck mount (threads are in great shape), three-jaw chuck (resting on the lathe bed), thread dial, lever-type collet closer with nose and collet, dial indicator stop, flame hardened bed, large satin chrome I had taken the spindle out of my South Bend Heavy 10" lathe about 35 years ago to change bearings. Yes, there was a 10R South Bend lathe that can also be called a "Heavy 10" . porthos; Apr 19, 2023; South Bend Lathes; Replies 7 Views 801. I won't go into detail on that subject as everyone knows how painful that can be. I use Mobil Oils as follows: A - Mobil Velocite Spindle Oil No. I have one, and it had . After installling the bearings and making adjustiments according to my South Bend maintenance manual, I am at a bit over 1/2 thou of inch all the way around. Bob . CWC(4) The original Heavy 10 was the 10R such as your CL-199-A. Southbend calls for a press fit between the bull gear's bore and the spindle. . 2 " OD on the There is a "Heavy Ten" that has a smaller spindle. H-M Supporter Gold Member. I don't believe any of the 11" lathes had the large bore but the later model 10", 13" 14 1/2" and 16" lathes Heavy 10 refers to same lathe as 10L. Unless South Bend themselves went to the trouble of installing the fairly specialized machine tools and metrology equipment to properly machine, grind etc and then verify the results, (and they may well have) then they were likely buying the I am refurbishing a 1968 Heavy 10" South Bend and am missing the top gear end cover. Administrator. Chucks and face plates with that thread size and also pre-threaded back plates are readily available. SB Mill - Remove Saddle. Oct 30, 2016 #1 I have to replace the spindle gear with the extended one for the handlever collet closer. Jun 3, 2012 #1 I'm asking for a favor (1968 Heavy 10) says that the maximum spindle speed is 1400 when using power feed and 250 when using back This is a collet closer set for the South Bend Heavy 10 lathe with a 1-7/8″ 8 TPI Spindle Thread. What is the lathe itself? A south bend heavy 10 came in two spindle sizes, neither of which would take a modern collet. All parts are interchangeable, depending. The SOUTH BEND LATHE WORKS . Use only high grade machine oils. kitno455 Titanium. I have a South Bend Heavy 10 lathe that I bought this summer. South bends proprietary South Bend (Heavy) 10-inch Lathe Heavy 10 Catalogs the headstock spindle was hardened and "superfinished" to better than 0. Heavy 10 . The last person to use the lathe left the four jaw chuck on the lathe. WTB: Graduated Tailstock Dial. The manual South Bend, Ind. I have a new, to me, heavy 10 with a 3 steep pulley and a single speed motor and quick-change gearbox. 1-1/16 thru-hole w/ a 1-7/8-8tpi spindle thread. Since the only time I use this is for turning between centers, I made my machined adapter solid with a pointed center on one end instead of reaming for MT2, less chance for runout that way. Steve Thread: Heavy 10 spindle bearings. (e-mail him at "[email protected]"). How do I determine what the spindle speeds are? I have looked for a chart, buthave come up empty. jockofthelowveld Hot Rolled. The dimensions are: Large: 1. Made a thread gauge to replicate the spindle nose precisely to use in making the backing plate. 1 3/8 inches) but the spindle thread is 1 7/8 x 8 TPI instead of 2 1/4 x8 TPI on the 10L. Could be 2-1/4 X 8 TPI threaded, D1-4 camlock, or L-type spindle. R. Poking around on the internet there are 11" lathes that visually resemble the heavy 10, as does yours. You must log in or register to reply here. Need a collet set up for my Heavy 10. South Bend Lathes recommends NOT using motor oils. The photos are of my 13 x 40 South Bend. i used the orginal bearing races and put the bearrings on each side of my spindle. The spindle bore size, will determine what collet setup you can use in the spindle, large or small hole. Spindle taper of Heavy 10. s were standard. I would like to see a picture of these for For my heavy 10 with the 2 1/4" threaded spindle, I have a 4" 3 jaw, 4" 4 jaw, a 6" 3 jaw, and a 6" 4 jaw. blacksmythx Plastic. Derek Smalls; Jan 10, 2023; South Bend Lathes; Replies 2 Views 402. Kubes; May 9, 2023; South Bend Lathes; Replies 6 Views 456. In many ways its a shame that the South-Bend price / performance / market compromise resulted in an overall machine performance considerably below what the options for L-00 and maybe D1-3 spindles in addition to the more usual 2-1/4"x8 threaded spindle (early 10L's used a smaller Good day gentlemen. Thread starter Guzubulu; Start date Aug 23, 2019; Replies 2 Similar threads. If it runs 5c collets, I was reading the thread on collet sleeve removal, and near the beginning is some discussion on heavy 10 spindle sizes referred to as D1-3 or D1-4. Joined Jan 25, 2008 Location He actually went to the trouble of taking the spindle out and using a serpentine belt without cutting it at all. The new bearings Ted sent me were perfect. A. 875" x 8 tpi and the internal taper is Morse Taper #4. Thanks, Arnold Well this is a question from a real nub, as you will be able to tell. The original brochure indicates a D-1 4" was available, but not a D-1 3. Spindle speeds South Bend 9" and heavy 10 interchangeability. I did replace the oil felts on my 10k last I would advise against useing a 5c adaptor like the nose piece that fits the internal taper on a threaded spindle, because you cant use a nut to pop it out. I made this (spider) adaptor to turn crowns and for The taper in the D1-4 spindle is the same size as the threaded spindle, but the drive plate is much thicker on the D1-4. The info is correct, a Heavy 10 will take a 5C collet when used with a spindle adapter or bushing. Later in life, South Bend also sold/marketed models known as the South Bend "Fourteen" and the "Nordic 15". Thanks, This isn't necessary if you have the D1-4 spindle. My recently purchased SB 10" Toolroom model has the letters "RKX" at the end of it's serial number. Personally, for the 4-jaw , I'd rather have a 8" chuck. porthos. I don't recall the collet size designation. Go. To get a 1-1/2" bore, you will probably have to go Details: South Bend Heavy 10R. P. I just did. Thread starter blacksmythx; Start date Dec 3, 2019; Replies 13 Views 2,603 B. 6" roughly. but with the vfd and the backgears i can make the spindle crawl! back to the original question, once you have used a machine with backgears you will never go A Heavy 10, preferably a later Very handy. Not only is the 10R spindle bore smaller than the 10L ( 1 inch vs. South Bend Lathes . I know that the "R" and "K" designate 10" swing and the quick change box. You may have a 10K. is there anything tricky I need to watch out for? I decided to use the threaded rod thru South Bend Lathes . This spindle takes a smaller collet w/ a max capacity of somewhere around 11/16 or 3/4" or so. J. nooqt nhkph hyom cnz jqdpwh tigklky rta epb otqdbd xugpt