Material: Spring steel
Hardness: d1= 16÷48mm: 470÷580 HV 47÷54 HRC Hardness: d1= 50÷100mm: 435÷530 HV 44÷51 HRC SURFACE FINISHES Phosphated and oiled Blackened and oiled Manufacturer's choice Example of designation: ring type AL 30 |
d1=shaft diameter
d2=groove diameter d3=ring diameter in the unstressed state s=thickness |
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