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DFS
DFS
DFS

DFS

End-Caps Circulation, Flange, Double Nut Type

DFS series features high Dm x N value, high speed and low noise, double nut design provides stability and load-carrying capacity, making DFS series applicable in high speed and high load-carrying operating environment.


Nominal Model Code of Ball Screw :

SFU R 025 05 T4 D G C5 - 600 - P1 - B2 + N3 N3

【SFU】Nominal Model

S:

  • S: Single nut
  • D: Double nut
  • O: OFF set double nut

F

  • F: With Flange
  • C: Without Flange

U

  • NI : NI type nut
  • NU : NU type nut
  • H : H type nut
  • A : A type nut
  • NH : NH nut (A solution for slide table)
  • Y : Y type nut
  • V : V type nut
  • U : DIN nut 
  • M : M type nut
  • K : K type nut

【R】Threading Direction

  • R: Right
  • L: Left

【025】Nominal Diameter

  • Unit : mm

【05】Lead

  • Unit : mm

【T4】Number of Turns

  • Turn : T : 1
  • A : 1.5 ( or 1.7/1.8 )
  • B : 2.5/2.8
  • C : 3.5
  • D : 4.8
  • ex : ( 2.5 ╳ 2 = B2 )

【D】Flange Type

  • N: Not cutting
  • S: Single cutting
  • D: Double cutting

【G】Product Code

  • G: Ground
  • F: Rolled

【C5】Accuracy Grade

  • C0, C1, C2, C3, C5, C7, C10

【600】Overall Length of Shaft

  • Unit : mm

【P1】Axial Clearance and Preload Value

  • P0, P1, P2, P3, P4

【B2】Number of Nut

(Leave blank if only one nut is required)

Ex : Install two nuts on a shaft B2

【N3】Nut Surface Treatment:

  • S: Standard
  • N5: Chrome
  • N1: Hard Chrome Plating
  • P: Phosphating
  • N3: Nickel Plating
  • N4: Raydent
  • N5: Chrome Plating


【N3】Shaft Surface Treatment:

  • S: Standard
  • B1: Black Oxidation
  • N1: Hard Chrome Plating
  • P: Phosphating
  • N3: Nickel Plating
  • N4: Raydent
  • N5: Chrome Plating

※No symbol required when plating is not needed. 

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For delicate application in industrial application, machine tool and automation application.

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