Precision Ground Ball Screws

Precision ground ball screws offer high efficiencies and long life. They will produce a lower audible noise and the highest motion smoothness as compared with lower grade screw and nut assemblies. These assemblies are 100 percent duty cycle products. The GS series have dynamic loads to almost 1000 lbf and static loads to just over 3000 lbf. Service life with the above values is 1 million inches of travel but can be calculated to 100 million inches of travel with reduced loads.

The GS Series Ground Ball Screw Assemblies from Lintech are designed to maximize performance while providing design flexibility. These assemblies utilize a precision ground ball screw with precision ground preloaded nuts. A ground ball screw will offer better open loop (no encoder feedback) position accuracy versus a rolled or precision rolled ball screw. This grade of screw assembly is used for very precise motion requirements, low lead error, low velocity and torque ripple due to mechanics. The preloaded nut assembly offers high bidirectional repeatability by eliminating backlash.

These ball screw assemblies are typically used when a complete positioning system is too costly or does not fit the users exact positioning system requirements. When combined with linear bearings & rails, a custom positioning system can be created. These steel ball screws are provided with precision machined steel supports for end bearing housings. The support housings are available in three styles (simple, fixed, and rigid). The fixed and rigid housings have precision machined shoulders that allow for a NEMA motor mount to be factory or field-installed. These ball screw positioning components are designed to allow for numerous configurations through the use of rotary encoders, different diameter and lead combinations, power-off electric brakes or motor wrap packages.

Precision Ground Ball Screw Assembly Features:

• Complete ball screw assembly with end supports
• Screw Style:  Ground
• Screw Diameters:  0.625 inch, 16 mm, 0.750 inch, 20 mm
• Screw Leads:  0.200 inch and 5 & 16 mm (for GS062), 0.200 inch and 5 & 20 mm (for GS075)
• Screw Lengths: up to 40 inches (1016 mm)  for the GS062; 56 inches (1499 mm) for the GS075
• Lead Error:  < 0.0005 inches / ft (0,012 mm/300mm)
• End Supports:  Simple-Simple, Fixed-Simple, Rigid-Simple, Rigid-Rigid
• Mounting:  English & Metric

Click on the following link to download a Ball Screw Application Worksheet which you can email to us at  sales@electromate.com to generate your quote.