RfN 4012 Light Duty Series Simplified manufacture – only plain shaft and bore diameters with easily achieved surface finish and tolerances are required. Light duty series for torque transmission. Easy adjustability - Easy mounting - Easy removal - Low susceptibility to contamination - Highest reliability
RfN 4022 Standard Series Simplified manufacture – only plain shaft and bore diameters with easily achieved surface finish and tolerances are required. Easy adjustability - Easy mounting - Easy removal - Low susceptibility to contamination - Highest reliability
RfN 4023 Heavy Duty Series Simplified manufacture – only plain shaft and bore diameters with easily achieved surface finish and tolerances are required. Heavy duty series for high torque and bending moment. Easy adjustability - Easy mounting - Easy removal - Low susceptibility to contamination - Highest reliability
RfN 4051 Light Duty Series/split Reduced dimensions with lower transmission values – especially for applications with restricted space. This light duty external locking device is the first in the Shrink Disc range and is useful for low to medium torque requirements.
RfN 4051-SR Light Duty Series half Reduced dimensions with lower transmission values – especially for applications with restricted space. As a split version, the SR series is able to offer greater mounting versatility on symmetrical hub designs or can also be used as half shrink discs for lower torque applications.
RfN 4061 Standard Series/split Standard series – this range is the most popular, being used in most applications. This new design of Shrink Disc is made from high alloy forged rings and is practically indestructible. Replacing the smaller 4071 design, these units are available from 14mm to 195mm bore.
RfN 4073 Mini Series Mini series – this range is a very compact design with low inertia values. It is ideally suited for mechanical seal and small gearbox applications.
RfN 4161 Standard Series Standard series – this range is the most popular, being used in most applications. High transmission values are possible and by varying the screw tightening torque the Shrink disc can be adapted to the design specification. Simplified manufacture – only plain shaft and bore diameters with easily achieved surface finish and tolerances are required. Easy adjustability – no stops, steps, keyways, splines etc. are required, therefore hubs can be located and locked at any point or angle on the shaft. Easy mounting – RINGFEDER® Shrink Discs use standard screws and tightened using standard tools. No additional machining or fitting work is required. Easy removal – after loosening the locking screws, the RINGFEDER® Shrink Disc will self release and the hub will move freely on the shaft. Low susceptibility to contamination – when the locking screws are tightened the contact (functional) surfaces are pressed firmly together and prevent the ingress of dirt and moisture.
RfN 4181 Heavy Duty Series Two part shrink heavy duty series – with additional guide mechanism for the inner ring. For the transmission of maximum torques.
RfN 4061 Standard Series stainless steel
Stainless steel series – for applications where corrosion resistance and high transmissible torque is required.
This new design of Shrink Disc is made from stainless steel forged rings and uses high strength stainless steel screws. These units are available from 14mm to 195mm bore.
