Hydraulic nuts

Hydraulic nuts offer numerous advantages, including high clamping force, precision, safety, ease of use, and versatility.

They are designed for applications requiring precise and powerful tightening of bolts and shafts, making them essential in industries such as heavy machinery, power generation, industrial equipment, and transportation.

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How do hydraulic nuts work?

Dismounting bearings mounted on either adapter or withdrawal sleeves is often a difficult and time-consuming task.

These problems can be reduced with the use of a hydraulic nut.

When a hydraulic nut is used, oil is pumped into the nut, and the piston is pushed out with enough force to free the sleeve. This significantly reduces the time taken to dismount the bearing, as well as reducing the manual effort involved. 

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Piston inner diameter (d1) mm

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Piston outer diameter (d2) mm

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Nut body outer diameter (d3) mm

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Width of nut body (B) mm

  • 38 (19)
  • 39 (3)
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Piston width (B1) mm

  • 4 (2)
  • 5 (8)
  • 6 (8)
  • 7 (8)
  • 8 (9)
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  • 10 (8)
  • 11 (8)
  • 12 (8)
  • 13 (8)
  • 14 (4)
  • 15 (2)
  • 16 (2)
  • 17 (3)

Thread

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  • M 50x1.5 (1)
  • M 55x2 (1)
  • M 60x2 (1)
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PermittedĀ piston displacement (mm)

  • 5 (22)
  • 6 (4)
  • 7 (1)
  • 8 (2)
  • 9 (5)
  • 10 (3)
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  • 21 (3)
  • 22 (1)
  • 23 (5)
  • 24 (1)
  • 25 (4)
  • 26 (1)
  • 30 (2)
  • 34 (1)

Maximum allowed working pressure (MPa)

  • 80 MPa (42)
  • 40 MPa (22)
  • 25 MPa (20)

Product type

  • Nut (94)
  • O rings (59)
  • accessories for hydraulic tools (4)