Overview

• Lighter version for moderate transfer values – particularly suited for thin hubs and hollow shafts
• The RINGFEDER® RfN 4051 is a three-part shrink disc and serves to transfer low to moderate torque. The narrow pressure rings require only a very small space. The transferrable torque can be set in a targeted manner for the corresponding application by changing the screw tightening torque.
• Light design – suitable for middle transmissible values when space is limited.
• Compensation of small tolerance errors – please contact our engineers.
• Maximum reliability – suitable for static, dynamic and impact loads.
• Slitted inner ring – low forces and pressures on hub and shaft.
• Simplified manufacture – only plain shaft and bore diameters with easily achieved surface finish and tolerances are required.
• Easy mounting – no steps, keyways, splines are required, therefore hubs can be located and locked at any point or angle on the shaft. RINGFEDER® Shrink Discs use standard screws tightened with standard tools. No additional machining or fitting work is required.
• Easy replacement – the RINGFEDER® shrink disc is free from any form fit.
• Low susceptibility to contamination – when the locking screws are tightened the functional contact surfaces are pressed firmly together and prevent the ingress of dirt and moisture