Precision ground ball screws DIN standard SKD / BKD / PKD


Features and benefits

  • Standard composite recirculation inserts
  • Optional steel recirculation inserts
  • Standard lead precision G5; optional lead precision G3 or G1
  • Lubrication hole for grease nipple or for SKF SYSTEM 24 automatic lubrication kit
  • Optional surface coating on shaft and nut
  • Optional wipers
  • Optional support bearings
  • Precision ground nut well suited for positioning screws
  • Optional steel recirculation inserts can act as a safety device for severe or vertical applications. Please contact SKF
  • Backlash elimination by oversized balls on request (BKD designation)
  • One-piece nut with internal preload for compactness and optimum rigidity (PKD version)

Technical data

Nominal diameter
from 16 to 63 mm
Lead
from 5 to 10 mm
Basic dynamic load capacity
from 7 to 94,6 kN
Basic static load capacity
from 10 to 262 kN
Standard preload
7% to 8,5% of ball screw Ca value, depending on ball screw size (PN version)

Typical applications

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