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These are truly the best linear slides on the market at an unbelievable price. These normally sell for over 3600$ each. You can get a brand NEW in the original packaging KR 4610D+740 LP-1100 slide for $825, that’s over 80% off retail! -This is a double block slide where one block is driven by the ball screw and one is not, this allows you to change the span between the blocks and there by increase the rigidity. -These slides have just over 22.5 inches of travel or 573mm (specifics can be found on the THK website) -These are PRECISION GRADE slides which makes a BIG difference. They offer: Positioning Repeatability = +-0.003mm or (.00011 inches!) thats one ten thousandth of an inch The ball screw is of precision grade, (THK’s best) and has a 10mm lead, or the block travels 10mm for each turn of the screw. It is 15 mm in diameter. This slide comes with a cover and has a small t-slot rail on one side to mount limit switches. Don’t mess around with used linear slides, it doesn’t take much force to damage these precise pieces of equipment even though they may appear to be in good shape, they may be out of alinement and one would never know it till it was to late. Don't settle for aluminum extrusion based slides with bolted on linear guides, where the accuracy is questionable, these are solid steel and you can't do better than .003 mm accuracy. I fully guarantee these slides, money back if you are not satisfied. The following is taken from the THK website: The KR Actuator features a one-piece outer rail with two integrated linear motion raceways for each block side. A ball screw drive through the center of the block completes this space-saving design. Every actuator in this line offers extremely rigid and highly accurate functions and utilities. Because of its integral-structure nut block consisting of a highly ridgid LM rail with a U-shaped cross section, LM guide units on both side faces and a ball screw unit in the center , model KR achieves a highly rigid and highly accurate actuator in a minimal space. Each train of balls is arranged at a contact angle of 45 degrees so that the rated load on the nut block is uniform in the four directions. This allows the KR model to be used in any mounting orientation. This is optimal for situations such as the arms of a cartesian robot. Unlike the conventional LM guide, model KR uses an outer-rail structure to achieve higher rigidity against an overhung load. (please look at our rules and privacy policy) |
m.mueller@machine--tools.com (Mattie Mueller) for additional information. This email is used for forwarding to newsgroup user.
