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Shrink Disc RfN 4091-100 - Heavy Duty Series/split
RfN 4091-100 RfN 4091-50 Shrink disc is the modern method for creating a mechanical shrink fit. RINGFEDER® Shrink Disc connections are suitable for securing all types of hubs onto shafts and axles.
• Light design – suitable for medium transmissible values when space is limited.
• Slitted inner ring – low forces and pressures on hub and shaft. Maximum reliability – suitable for static, dynamic and impact loads.
• 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.
• Easy removal – after loosening the locking screws, the RINGFEDER® Shrink Disc will self release and the hub will move freely on the shaft.
• Simplified manufacture – only plain shaft and bore diameters with easily achieved surface finish and tolerances are required.
• 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.
MPN: RfN 4091-100
Specifications
base size | 4" |
d x d inch | 3.937 x 6.693 |
solid shaft diameter | 2.953 |
pitch circle diameter | 4.961 |
overall length | 2.402 |
overall length without screws | 2.126 |
thrust ring width | 0.906 |
width of ring | 1.732 |
width of the half shrink disc | 1.260 |
max. tightened torque of the screws ft lbs | 45 |
transmissible torque at given ta ft lbs | 7.376 |
transmissible axial force | 65.918 |
hub surface pressure psi | 38.463 |
equivalent stress in the hub | 49.64 |
max. transmissible torque ft lbs | 9.22 |
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