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Hollow Screw Shaft Series N for Improved Cooling of Ball Screws


Figure 1 Hollow screw shaft Series N

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The hollow screw shafts are available in C3, C5 and C7 lead accuracy for the following ball screws:

  • Caged Ball type: SDA-V, SDAN-V, SBN-V
  • Full-ball type: SDA-VZ, SDAN-VX, BIF-V, BNFN-V, BNF-V, EBB-V, EPB-V

Dimension table

Unit: mm

Screw shaft diameter Inner diameter Max. shaft length Max. thread length
20 6 2000 1500
25 8 3000 2000
32 8 3000 2000