Precision ball screws
Miniature range ball screws
The compact rolled ball screws in the miniature series have a diameter between 6 and 16 mm and can be installed easily thanks to the threaded tip. Our designs (including load capacity) can be adapted to your technical requirements if necessary. Ewellix miniature ball screws are also available in anti-corrosion stainless steel.
Nominal diameter from 6 to 16 mm
Lead from 2 to 12,7 mm
Dynamic load capacity up to 10,7 kN
Stainless steel version available
Benefits:
- Excellent repeatability with highly accurate positioning
- Uniform motion
- Easy to integrate
- Elimination of play due to excessive vibration or changes in direction
Features:
- Extremely compact nut design with threaded nose for easy assembly
- Reduced axial play or backlash elimination on request
- Available in stainless steel, material X30Cr13 (similar to AISI 420)
- Optional shaft and nut surface coating and wipers or safety ring for certain sizes
Miniature high performance range ball screws
Ewellix's high-performance miniature ball screws enable precise and quiet positioning at high speed and low friction and require minimal maintenance. They are designed for high axial loads and are supplied in a wide range of types and available as customized solutions to meet virtually any application requirement.
Nominal diameter from 8 to 16 mm
Lead from 2 to 5 mm
Dynamic load capacity up to 7,6 kN
High speed capability
Benefits:
- Smooth running with low noise levels
- High speed capabilities, up to 2.4 times the standard range
- Provides long service life and excellent repeatability
- High positioning accuracy
Features:
- New recirculation technology and new thread profile definition
- Interchangeable with most existing standard solutions
- Lubrication hole and wiper housings standard
- Customised axial play and backlash elimination available
Long lead ball screws
The Ewellix range of large pitch ball screws has been specially developed by Ewellix for fast linear speeds to increase productivity and represent a winning combination of precision roller technology and end cap return. This design is suitable for most positioning applications thanks to the precision ground outer surface of the nut and flange support.
The products in this series are designed by Ewellix to provide even greater positioning accuracy, as well as slip prevention.
Nominal diameter from 25 to 50 mm
Lead from 20 to 50 mm
Dynamic load capacity up to 92,9 kN
High rotational and linear speed
Benefits:
- High linear speed up to 110 m/min
- Design suitable for most positioning systems, due to high accuracy with no play
- Lifetime lubrication via additional seals offering protection against contamination
- Compact, easy to use and straightforward integration with a rotating nut
Features:
- Standard protection wipers at each nut end and optional double protection
- High rotational speed up to nd0 = 90 000, resulting in high linear speed up to 110 m/min
- Nut design well suited for transport or positioning screw applications requiring high velocity such as woodworking, some functions in plastic injection presses, pick and place etc.
- Compact, easy and simple solution to incorporate into application (SLT)
Rolled ball screws
Universal ball screws from Ewellix are based on precision roller technology and represent compact,
highly efficient drive solutions. The nut can be equipped with a threaded tip or a flange (either cylindrical or in accordance with DIN 69051) for easy installation. Depending on the application, special flanges can optionally be attached to the threaded tip of the nut. If required, customer-specific solutions are also available.
Nominal diameter from 16 to 63 mm
Lead from 5 to 40 mm
Dynamic load capacity up to 91,2 kN
Cylindrical, flanged and DIN nuts available
Benefits:
- Customised solutions available
- Excellent value for money and a competitive alternative to ground ball screws
- Corrosion protected nuts
- Design adaptable to most positioning operations, with no play or slack
Features:
- Standard composite or steel recirculation inserts
- Nut phosphate coating for corrosion protection
- Backlash elimination by oversized balls on request (BX/BN/BND designation)
- Design well suited for positioning screws (SN/SND series)
