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Centrifugal clutch with long service life due to polymer bearings

Wear-resistant iglidur plain bearings increase the service life of centrifugal clutches

Giprime Hyper Racing is a company that builds centrifugal clutches used in two-stroke racing machines. Clutches of this kind are normally mounted without plain bearings, leading to fast wear. Using highly abrasion-resistant plastic plain bearings greatly increases the service life and eliminates the necessity of replacing the entire coupling.

Profile

  • What was needed: Cylindrical iglidur H4 plastic plain bearings
  • Requirements: High wear resistance under extreme conditions
  • Industry: Automotive, racing
  • Success for the customer: The customer no longer has to replace the entire coupling, just the bearing alone; increasing the service life. Replacement also requires less time and money.
Centrifugal clutch with iglidur plain bearings Giprime Hyper Racing centrifugal clutch with iglidur plain bearings.

Problem

This Giprime Hyper Racing centrifugal clutch is used in two-stroke racing machines. The function of a centrifugal clutch is to establish the frictional connection from the engine to the drive. As speed increases, the clutch discs are pressed outwards onto the clutch case. This creates a constant pivoting movement for which bearing installation is suitable. Clutches of this kind are normally mounted without bearings, leading to fast component wear. As a result, they often have to be completely replaced after a short time.
So the manufacturer's problem was high wear on the pin and coupling fasteners. Because they are used in racing machines, stress is much higher than in normal scooters.

Solution

As a result, the Giprime Hyper Racing clutch now employs iglidur Z sliding bushings, which can endure the high loads inherent in racing. They have a very long service life in harsh environments, can withstand impacts at high loads and temperatures,and are resistant to wear. This has significantly decreased the amount of friction between the pin and the housing and lengthened the clutch's service life in Giprime Hyper Racing 
Additionally, it is only required to change the plastic plain bearing, which takes a few minutes, rather than the full centrifugal clutch. This saves the customer both time and money.
Plain bearings made of plastic also require far less time to adjust than bearings made of metal. In racing, this is extremely crucial.
 

Giprime Hyper Racing centrifugal clutch with iglidur plain bearings Giprime Hyper Racing centrifugal clutch together with further components.
iglidur H4 plain bearings The plain bearing used made of iglidur H4

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The terms "igus", "Apiro", "chainflex", "CFRIP", "conprotect", "CTD", "drylin", "dry-tech", "dryspin", "easy chain", "e-chain", "e-chain systems", "e-ketten", "e-kettensysteme", "e-skin", "e-spool", "flizz", "ibow", "igear", "iglidur", "igubal", "igutex", "kineKIT", "manus", "motion plastics", "pikchain", "readychain", "readycable", "ReBeL", "speedigus", "triflex", "robolink", "xirodur", and "xiros" are legally protected trademarks of the igus® GmbH/ Cologne in the Federal Republic of Germany and where applicable in some foreign countries.

igus® GmbH points out that it does not sell any products of the companies Allen Bradley, B&R, Baumüller, Beckhoff, Lahr, Control Techniques, Danaher Motion, ELAU, FAGOR, FANUC, Festo, Heidenhain, Jetter, Lenze, LinMot, LTi DRiVES, Mitsubishi, NUM,Parker, Bosch Rexroth, SEW, Siemens, Stöber and all other drive manufacturers mention on this website. The products offered by igus® are those of igus® GmbH