Spherical roller bearing 22218tn1/w33r suffix is what mean?
KOYO's explanation: increased load capacity of self-aligning, tapered and cylindrical roller bearings
It is best to consult the brand representatives directly.SKF explanation: R outer ring with flange
W33 the outer ring is provided with an oil tank with three oil holesThe TN1 cage is made of nylon materialThis R is not a standard suffix code, so different brands will have different interpretations.