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Precision ground ball screws PGFM

PGFM precision ground ball screws

Features and benefits

  • Double nut design, preloaded, end flange
  • Standard steel recirculation inserts
  • Standard lead precision G5. Optional lead precision G3 or G1
  • Lubrication hole for grease nipple
  • Standard wipers
  • Optional support bearings
  • Variant with center flange is called PGEM
  • Precision ground nut well suited for positioning screws
  • High accuracy combined with high axial stiffness
  • Extremely durable and smooth ball recirculation system

Technical data

Nominal diameter
from 0.5 inch to 6 inches
from 0.1 inch to 1 inch
Basic dynamic load capacity
from 1 200 to 84 000 lbf
Basic static load capacity
from 2 270 to 281 000 lbf
Standard preload
8% to 10% of ball screw Ca value

Typical applications

  • Machine tool
  • Machining centres
  • Grinding machines
  • Marble and stone cutting
  • And many other applications
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