Item Type: Deep Groove Ball Bearing Material: Bearing Steel ModelID x OD x Thickness(Approx.) 600525 x 47 x 12mm / 0.98 x 1.85 x 0.47in 600630 x 55 x 13mm / 1.18 x 2.17 x 0.51in 600735 x 62 x 14mm / 1.38 x 2.44 x 0.55in 600840 x 68 x 15mm / 1.57 x 2.68 x 0.59in 1Great Bearing: Mainly applied to bear radial loads, the deep groove ball bearing can also bear a certain axial load. 2Broad Utility: Can be used on gear box, instrument, motor, household appliance, internal combustion engine and so on. 33Pcs in Total: Including 3pcs ball bearing in the set, the replacement of old and damaged parts is very convenient. 4Good Material: Comes with high and even hardness, the bearing steel with high elastic limit is durable with wearing. 5Easy to Install: Designed to have a light weight and a compact size, the installation is very simple to complete.Please match the appropriate size before use.3 x Deep Groove Ball Bearing