bolt size: Sealmaster MFCH-24TC Flange-Mount Ball Bearing Units

bore diameter::1.5000 in; inner ring width::2.0000 in; bolt circle diameter::5.1250 in; seal type::Contact Seal; overall length/diameter::6.1250 in; operating temperature range::250°; bore type::Round; finish/coating::Uncoated; duty type::Standard Duty; pilot diameter::4.2500 in; mounting type::