... used in steel industry, oil industry, cement industry, mining or construction, papermaking machinery, rolling mill, sugar mill, vibrating screens, conveyors, ... transmissions, and other heavy machinery. Radial Spherical Plain Bearings COM-HCOM seriesMaintenance required – Inch dimensionsOuter ring pressed around inner ring ... ,In inch dimension series. Radial Spherical Plain Bearings COM/HCOM series