Inside Ø (mm): 20 Outside Ø (mm): 47 Bearing Width (mm): 15.25 Width Outer Ring (mm): 12 Width Inner Ring (mm): 14 Tolerance for inside-Ø (mm): 0/-0,012 Tolerance for outside-Ø (mm): 0/-0,014 Tolerance for width of the bearing (mm): 0,2/0 Tolerance For Width Outer Ring (mm): 0/-0,12 Tolerance For Width Inner Ring (mm): 0/-0,12 Seal: open The tapered roller bearing 30204 has tapered rollers as rolling elements and is suitable for high combined loads from the radial and axial directions. Main dimensions according to DIN 720. has conical rollers as rolling elements suitable for high combined loads in one direction it has also an axial load carrying capacity on both sides in the X- or O-arrangement in pairs narrow and light series very good fixed bearing properties in one direction