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Low friction ring | FrPK® Dynamic use


FrPK®, the Nodus Factory® friction ring is self-lubricating, very light, reliable and friction resistant for dynamic use (masthead sheave, hoists and dynamically adjustable stunts).

It can be used in many static and dynamic applications with non-abrasive ropes (Dyneema®, Vectran® and polyester type).

Materials: High temperature thermoplastic / PEEK
Uses : Hoists, stunts with dynamic and static adjustments, boom vang, backstay, genoa adjustments.

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FrPK® the Nodus Factory® friction ring is self-lubricating, very lifht, reliable and stong. The Nodus friction ring is used in numerous applications static or dynamic with soft types of rope (Dyneema / Nodex).

For dynamic use with abrasive rope, refer to our FrD friction rings in Duralumin or our I-Tech friction rings

+ Uses
  • Mast foot, in-hauler
  • Barber, in-haulers or as spare pulley
  • Tackle (Mainsail, vang, running backstay, etc.)
  • Hoists (mainsail, vang, running backstay,…etc)

Find all the information on the load forces according to the deflection angle HERE

Data sheet

  • FrPK ¬ High temperature technical plastic resin ¬ Dark grey


  • Treated with MoS2, mechanical lubricant
  • Weight/strenght ratio
  • Performance, lightness and reliability
  • Reliable and maintenance free

Product Details



Safe Working



Ø Rope


Angle  0° Halyard/Sheets
Low Friction KG mm mm mm mm mm gr
FRPK 10 900 7 9 12 24 4/6 2
FRPK 14 1200 9 13 15 34 6/8 4
FRPK 20 1600 12 19 22 49 8/12 16

Nodus and tricks

For a professional splicing, respect : 

A larger eye increases the strength of the ring, the angle of the splice to the groove will have 15 degrees minimum.

The length of the flat eye must be at least 2.7 times the diameter of the ring groove.

  • FRPK 10 = 27 mm
  • FRPK 14 = 38 mm
  • FRPK 20 = 54 mm

The textile connector for the ring will have minimum 0.6 times the diameter of the groove (loop, shackle, lashing, estrope,...etc) The Ø of the sheet or the halyard will be minimum

  • FRPK 10 = 4 mm
  • FRPK 14 = 6 mm
  • FRPK 20 = 10 mm