New catalogue gives guidance on large ball screws
A
Steinmeyer UK product story
Edited by the Engineeringtalk editorial team
Mar 12, 2004
Steinmeyer is publishing a new 64-page catalogue for its extensive product line of large ball screws.
Steinmeyer is publishing a new 64-page catalogue for its extensive product line of large ball screws.
In diameters ranging from 16 to 100mm and pitches from 2 to 40mm, Steinmeyer ball screws are available with a choice of either preloaded single nut using 4-point contact, or double nut with two-point contact.
Depending on the desired pitch and speed rating, ball recirculation is achieved using internal ball deflectors or by Steinmeyer's unique UltraSpeed design.
Catalogue nut dimensions conform to DIN 69051, although Steinmeyer also manufactures a large number of custom sizes to match existing designs.
The new catalogue is divided into two parts - a selection guide with extensive technical information, followed by product dimension details and specifications.
Part one is the selection guide which includes: descriptions of the various preloading systems; DIN standard accuracy grade definitions; lifetime equations with calculation examples; calculations for stiffness, critical column loading and critical speed; extensive section on choices in lubrication and wipers.
Part two of the catalogue contains specifications and data tables for over 240 different ball screws.
Using this catalogue, and knowing the desired feeds, loads and expected lifetime, the machine designer is able to choose the optimum ball nut for a given application.
Data tables describing the various accuracy grades together with graphs for buckling load and critical speed simplify the selection process.
And a detailed explanation of Steinmeyer's numbering system makes the ordering process easy.
Applications for large ball screws include all types of machine tools including milling machines, turning centers, lathes, and grinders, as well as semiconductor production machines, robotic actuators, packaging machines, laser systems, medical equipment and general automation.
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