We produce (1) self-aligning roller bearings(spherical roller bearings) with cylindrical bore: 20000 series, 20000c series, 20000cc series, 20000cc/w33 series; (2) self-aligning roller bearings(spherical roller bearings) with tapered bore: 20000k series, 20000ck series, 20000cck series, 20000ck/w33 series, 20000cck/w33 series, 20000ck30/w33 series, 20000cck30/w33 series; (3) self-aligning roller bearings(spherical roller bearings) on adapter sleeves: 20000cck+h series, 20000ck+oh series; (4) self-aligning roller bearings(spherical roller bearings) on withdrawal sleeves: 20000+ah series, 20000+ahx series, 20000+aoh series; We are self-aligning roller bearings(spherical roller bearings) manufacturer in China. Cartons or wooden cases.