About Ball Screws ???
When I am looking at ballscrews I see mostly metric ones out there so
please tell me about the numbers. 1. What do the numbers mean? For example: C3 6-1mm L145 I am guessing 6 is the diameter, and 1 is the pitch. L145 is probably the overal length including machining. What is the C3 or C7 at the begining? Grade? Hardness? Precision of grind? 2. Can you clamp them up in a lathe to redo or cut your own maching on the end? Will that bugger up the grooves? How hard can you clamp them up? Is that going to vary from screw to screw? |
About Ball Screws ???
"Bob La Londe" wrote in message ... When I am looking at ballscrews I see mostly metric ones out there so please tell me about the numbers. 1. What do the numbers mean? For example: C3 6-1mm L145 I am guessing 6 is the diameter, and 1 is the pitch. L145 is probably the overal length including machining. More likely it's 6mm pitch and single start. And 145mm would be a bit under 6in length. What is the C3 or C7 at the begining? Grade? Hardness? Precision of grind? 2. Can you clamp them up in a lathe to redo or cut your own maching on the end? Yes. Will that bugger up the grooves? Not if you're careful How hard can you clamp them up? Depends on the depth of your collet and how much you want to take off each pass. Is that going to vary from screw to screw? Generally speaking the ends will be soft and the threaded portion will be case hardened somewhat. --hold in a collet or with bored soft jaws, and use carbide cutting tools--shouldn't be a problem long as you're not using a low end hobby lathe. |
About Ball Screws ???
"Bob La Londe" wrote in message ... When I am looking at ballscrews I see mostly metric ones out there so please tell me about the numbers. 1. What do the numbers mean? For example: C3 6-1mm L145 I am guessing 6 is the diameter, and 1 is the pitch. L145 is probably the overal length including machining. What is the C3 or C7 at the begining? Grade? Hardness? Precision of grind? 2. Can you clamp them up in a lathe to redo or cut your own maching on the end? Will that bugger up the grooves? How hard can you clamp them up? Is that going to vary from screw to screw? Oh almost forgot http://www.nsk.com/products/precisio...allscrew/#tab2 http://www.thk.com/us/products/class...rew/index.html http://www.steinmeyer.com/content/cn...id_1265/iso_en |
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