This FNL508A bearing is a Flanged Housing with unit fitted with set screw lock insert with flush inner ring on one side. The bearing's dimensions are 35x67x12mm.FNL508AFlanged HousingHousing for bearings on an adapter sleeve, diameter series...

This FNL508B bearing is a Flanged Housing for a through shaft. The bearing's dimensions are 35x66x12mm.FNL508BFlanged HousingHousing for bearings on an adapter sleeve, diameter series 9Housing for through shaft