• CKD Simple Floating Joint FK Series
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CKD Simple Floating Joint FK Series

CKD Simple Floating Joint FK Series

Compact simple floating joints (two-piece bracket type) for cylinders with bores of about 6 to 100 mm.

Key features

  • They compensate for misalignment between cylinder and load with a thrust-direction backlash of 0.1 to 0.3 mm
  • Available with male thread (-N) or female thread; steel, nickel plated
  • Allowable load values are static loads

Specifications

Thrust backlash (mm) 0.1-0.3
Material Steel, nickel plated
FK-M3-N Thread type: Male | Thread size: M3×0.5 | Allowable load (N): 63 | Allowable eccentricity (mm): ±0.3 | Thrust backlash (mm): 0.1-0.3 | Material: Steel, nickel plated
FK-M4-N Thread type: Male | Thread size: M4×0.7 | Allowable load (N): 110 | Allowable eccentricity (mm): ±0.3 | Thrust backlash (mm): 0.1-0.3 | Material: Steel, nickel plated
FK-M5-N Thread type: Male | Thread size: M5×0.8 | Allowable load (N): 179 | Allowable eccentricity (mm): ±0.3 | Thrust backlash (mm): 0.1-0.3 | Material: Steel, nickel plated
FK-M6-N Thread type: Male | Thread size: M6×1.0 | Allowable load (N): 253 | Allowable eccentricity (mm): ±0.3 | Thrust backlash (mm): 0.1-0.3 | Material: Steel, nickel plated
FK-M8-N Thread type: Male | Thread size: M8×1.25 | Allowable load (N): 462 | Allowable eccentricity (mm): ±0.3 | Thrust backlash (mm): 0.1-0.3 | Material: Steel, nickel plated
FK-M10-N Thread type: Male | Thread size: M10×1.5 | Allowable load (N): 734 | Allowable eccentricity (mm): ±0.3 | Thrust backlash (mm): 0.1-0.3 | Material: Steel, nickel plated
FK-M16-N Thread type: Male | Thread size: M16×2.0 | Allowable load (N): 2003 | Allowable eccentricity (mm): ±0.7 | Thrust backlash (mm): 0.1-0.3 | Material: Steel, nickel plated
FK-M20-N Thread type: Male | Thread size: M20×2.5 | Allowable load (N): 3130 | Allowable eccentricity (mm): ±0.7 | Thrust backlash (mm): 0.1-0.3 | Material: Steel, nickel plated
FK-M3 Thread type: Female | Thread size: M3×0.5 | Allowable load (N): 63 | Allowable eccentricity (mm): ±0.3 | Thrust backlash (mm): 0.1-0.3 | Material: Steel, nickel plated
FK-M4 Thread type: Female | Thread size: M4×0.7 | Allowable load (N): 110 | Allowable eccentricity (mm): ±0.3 | Thrust backlash (mm): 0.1-0.3 | Material: Steel, nickel plated
FK-M5 Thread type: Female | Thread size: M5×0.8 | Allowable load (N): 179 | Allowable eccentricity (mm): ±0.3 | Thrust backlash (mm): 0.1-0.3 | Material: Steel, nickel plated
FK-M6 Thread type: Female | Thread size: M6×1.0 | Allowable load (N): 253 | Allowable eccentricity (mm): ±0.3 | Thrust backlash (mm): 0.1-0.3 | Material: Steel, nickel plated
FK-M8×1.0 Thread type: Female | Thread size: M8×1.0 | Allowable load (N): 462 | Allowable eccentricity (mm): ±0.3 | Thrust backlash (mm): 0.1-0.3 | Material: Steel, nickel plated
FK-M8×1.25 Thread type: Female | Thread size: M8×1.25 | Allowable load (N): 462 | Allowable eccentricity (mm): ±0.3 | Thrust backlash (mm): 0.1-0.3 | Material: Steel, nickel plated
FK-M10 Thread type: Female | Thread size: M10×1.25 | Allowable load (N): 734 | Allowable eccentricity (mm): ±0.3 | Thrust backlash (mm): 0.1-0.3 | Material: Steel, nickel plated
FK-M12 Thread type: Female | Thread size: M12×1.5 | Allowable load (N): 1069 | Allowable eccentricity (mm): ±0.3 | Thrust backlash (mm): 0.1-0.3 | Material: Steel, nickel plated
FK-M14 Thread type: Female | Thread size: M14×1.5 | Allowable load (N): 1466 | Allowable eccentricity (mm): ±0.3 | Thrust backlash (mm): 0.1-0.3 | Material: Steel, nickel plated
FK-M16 Thread type: Female | Thread size: M16×1.5 | Allowable load (N): 2003 | Allowable eccentricity (mm): ±0.7 | Thrust backlash (mm): 0.1-0.3 | Material: Steel, nickel plated
FK-M18 Thread type: Female | Thread size: M18×1.5 | Allowable load (N): 2448 | Allowable eccentricity (mm): ±0.7 | Thrust backlash (mm): 0.1-0.3 | Material: Steel, nickel plated
FK-M22 Thread type: Female | Thread size: M22×1.5 | Allowable load (N): 3896 | Allowable eccentricity (mm): ±0.7 | Thrust backlash (mm): 0.1-0.3 | Material: Steel, nickel plated
FK-M26 Thread type: Female | Thread size: M26×1.5 | Allowable load (N): 6219 | Allowable eccentricity (mm): ±0.7 | Thrust backlash (mm): 0.1-0.3 | Material: Steel, nickel plated
Floating JointsCKD
21 product codes available in this family
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CKD Simple Floating Joint FK Series

Brand CKD·Floating Joints

Available part numbers (21)

FK-M3-N, FK-M4-N, FK-M5-N, FK-M6-N, FK-M8-N, FK-M10-N, FK-M16-N, FK-M20-N, FK-M3, FK-M4 + 11 more — see full table ↓

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Product codes & specifications
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Product codeSpec
FK-M3-NThread type: Male | Thread size: M3×0.5 | Allowable load (N): 63 | Allowable eccentricity (mm): ±0.3 | Thrust backlash (mm): 0.1-0.3 | Material: Steel, nickel plated
FK-M4-NThread type: Male | Thread size: M4×0.7 | Allowable load (N): 110 | Allowable eccentricity (mm): ±0.3 | Thrust backlash (mm): 0.1-0.3 | Material: Steel, nickel plated
FK-M5-NThread type: Male | Thread size: M5×0.8 | Allowable load (N): 179 | Allowable eccentricity (mm): ±0.3 | Thrust backlash (mm): 0.1-0.3 | Material: Steel, nickel plated
FK-M6-NThread type: Male | Thread size: M6×1.0 | Allowable load (N): 253 | Allowable eccentricity (mm): ±0.3 | Thrust backlash (mm): 0.1-0.3 | Material: Steel, nickel plated
FK-M8-NThread type: Male | Thread size: M8×1.25 | Allowable load (N): 462 | Allowable eccentricity (mm): ±0.3 | Thrust backlash (mm): 0.1-0.3 | Material: Steel, nickel plated
FK-M10-NThread type: Male | Thread size: M10×1.5 | Allowable load (N): 734 | Allowable eccentricity (mm): ±0.3 | Thrust backlash (mm): 0.1-0.3 | Material: Steel, nickel plated
FK-M16-NThread type: Male | Thread size: M16×2.0 | Allowable load (N): 2003 | Allowable eccentricity (mm): ±0.7 | Thrust backlash (mm): 0.1-0.3 | Material: Steel, nickel plated
FK-M20-NThread type: Male | Thread size: M20×2.5 | Allowable load (N): 3130 | Allowable eccentricity (mm): ±0.7 | Thrust backlash (mm): 0.1-0.3 | Material: Steel, nickel plated
FK-M3Thread type: Female | Thread size: M3×0.5 | Allowable load (N): 63 | Allowable eccentricity (mm): ±0.3 | Thrust backlash (mm): 0.1-0.3 | Material: Steel, nickel plated
FK-M4Thread type: Female | Thread size: M4×0.7 | Allowable load (N): 110 | Allowable eccentricity (mm): ±0.3 | Thrust backlash (mm): 0.1-0.3 | Material: Steel, nickel plated
FK-M5Thread type: Female | Thread size: M5×0.8 | Allowable load (N): 179 | Allowable eccentricity (mm): ±0.3 | Thrust backlash (mm): 0.1-0.3 | Material: Steel, nickel plated
FK-M6Thread type: Female | Thread size: M6×1.0 | Allowable load (N): 253 | Allowable eccentricity (mm): ±0.3 | Thrust backlash (mm): 0.1-0.3 | Material: Steel, nickel plated
FK-M8×1.0Thread type: Female | Thread size: M8×1.0 | Allowable load (N): 462 | Allowable eccentricity (mm): ±0.3 | Thrust backlash (mm): 0.1-0.3 | Material: Steel, nickel plated
FK-M8×1.25Thread type: Female | Thread size: M8×1.25 | Allowable load (N): 462 | Allowable eccentricity (mm): ±0.3 | Thrust backlash (mm): 0.1-0.3 | Material: Steel, nickel plated
FK-M10Thread type: Female | Thread size: M10×1.25 | Allowable load (N): 734 | Allowable eccentricity (mm): ±0.3 | Thrust backlash (mm): 0.1-0.3 | Material: Steel, nickel plated
FK-M12Thread type: Female | Thread size: M12×1.5 | Allowable load (N): 1069 | Allowable eccentricity (mm): ±0.3 | Thrust backlash (mm): 0.1-0.3 | Material: Steel, nickel plated
FK-M14Thread type: Female | Thread size: M14×1.5 | Allowable load (N): 1466 | Allowable eccentricity (mm): ±0.3 | Thrust backlash (mm): 0.1-0.3 | Material: Steel, nickel plated
FK-M16Thread type: Female | Thread size: M16×1.5 | Allowable load (N): 2003 | Allowable eccentricity (mm): ±0.7 | Thrust backlash (mm): 0.1-0.3 | Material: Steel, nickel plated
FK-M18Thread type: Female | Thread size: M18×1.5 | Allowable load (N): 2448 | Allowable eccentricity (mm): ±0.7 | Thrust backlash (mm): 0.1-0.3 | Material: Steel, nickel plated
FK-M22Thread type: Female | Thread size: M22×1.5 | Allowable load (N): 3896 | Allowable eccentricity (mm): ±0.7 | Thrust backlash (mm): 0.1-0.3 | Material: Steel, nickel plated
FK-M26Thread type: Female | Thread size: M26×1.5 | Allowable load (N): 6219 | Allowable eccentricity (mm): ±0.7 | Thrust backlash (mm): 0.1-0.3 | Material: Steel, nickel plated

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