There are several styles of ER collet chucks, but only two are applicable to small lathes: There are several sizes of ER collets as shown in this table: With a full set of ER collets youĬan hold any diameter that is in the clamping range of the set. While they are designed for tool holding, they work great for Much of the center distance on small lathes.ĮR collets have a wide clamping range and high accuracy. They are too large toįit into the spindle of small lathes. The drawback for small lathes is their size. Besides collet chucks for lathes, there are
They are inexpensive and are available in myriad Through the collet and drawtube so you can use long material.ĥC collets are pretty much the industry standard for If you have a production job using small diameter material, they We have 3C collet closers with adapters for most lathes with a 3C collets have a size range of 1/16" to 1/2". They are only available in 1/16-inch increments, they are not Material that is the nominal diameter of the collet. They are small and they have a limited clamping range.īecause of the limited clamping range, they must be used with Chris' TipsĬut to the chase: We recommend the flange-mount ER collet chuck for maximum flexibility.ģC collets have all but disappeared from the commercial We have lots of options for using collets with small lathes. You'll need to acquire a collet chuck that mounts directly to the spindle.Product Data Sheets User's Guides Service Bulletins Safety Data Sheets Wiring Diagramsįor holding a work piece in a lathe, collets provide better concentricity thanĪ 3-jaw chuck without the bother of centering a 4-jaw independent chuck. A MT#3 spindle is pretty small you won't get any other type of collet to fit directly. Your measurement of the threads sounds right, too so you need a chuck with a 1-1/2 x 8 thread mount. Sounds like you're right on the tapers-the dimensions jive. Spindle Threading: Is this calculated as. Questions: Is this an MT2 taper for the tailstock?Ĭollets: I'm lost on this one, which size/type should I be looking at? 5" yields 3 center threads and both jaws are at the crown of a thread. 75 inches, both jaws are touching the crown of a thread and there are 5 more between the jaws. Thread pitch: Not exactly certain how to do this, but the dial caliper. Last time I did any machining was in high school (and now I'm grey haired, so it's been a very long time.) New lathe has zero tooling other than a 3 jaw chuck (and a QC tool holder which should be found soon.)
0 kommentar(er)
