INA F-554763 needle roller bearings
INA F-554763 needle roller bearings Engineering Calculator 55 mm d , ABEC 1 (ISO Class Normal) precision rating: Manufacturing Service . Get Your Free. d 55 mm precision rating: ABEC 1 (ISO Class Normal) D 100 mm finish/coating: Uncoated B 21 mm cage material: Steel bore type: Round outer ring width: 21 mm closure type: