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  1. KOYO Tapered roller bearing
30311DJR d(Inside diameter):55mm
OD(Outer diameter):120mm
T(Height):31.5mm
B(Height):29mm
r(Minimum):2.5
r1(Minimum):2
Cr(Dynamic load rating):129kN
Cor(Static load rating):148kN
Grease(Grease lubrication):2900rpm
Oil( Oil lubrication):4000rpm

b_type(category):Tapered roller bearing

s_type(Remarks):The metric system of single row circular cone roller bearings
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