SKF deep groove ball bearings are the most popular bearing type which have an extensive application prospect. SKF bearings 6400-2Z belongs to deep groove ball bearings, 2Z means this bearings with double steel seals. Product technical reference coefficient of SKF 6004-2Z is following: Inner diameter : 20 mm Outer diameter : 42 mm Thickness : 12 mm Limited speed : 38000 r/min Reference speed : 19000 R/min Mass : 0.069 kgs Part stock list is shown as follows: 6004-2Z * 61905 6004-RSH * 61905-2RS1 6004-RSL * 61905-2RZ 6004-Z * 16005 * 63004-2RS1 6005 * 6204 * 6005-2RSH * 6204 ETN9 6005-2RSL * 6204-2RSH * 6005-2Z * 6204-2RSL * 6005-RSH * 6204-2Z * 6005-RSL * 6204-RSH * 6005-Z * 6204-RSL * 63005-2RS1 6204-Z * 62204-2RS1 6205 * 6304 * 6205 ETN9 6304 ETN9 6205-2RSH * 6304-2RSH * 6205-2RSL * 6304-2RSL * 6205-2Z * 6304-2Z * 6205-RSH * 6304-RSH * 6205-RSL * 6304-RSL * 6205-Z * 6304-Z * 62205-2RS1 6305 * 6404 6305 ETN9 62/22 6305-2RS1 * 62/22-2RS1 6305-2RZ * 63/22 6305-2Z * EE 8 TN9 6305-RS1 * RLS 7 6305-RZ * RLS 7-2RS1 6305-Z * RLS 7-2Z 62305-2RS1 RMS 7 6405 61805 RLS 8 61805-2RS1 RLS 8-2RS1 61805-2RZ RLS 8-2Z As a professional agent for SKF bearings, we have SKF brand 6000 series bearings from stock in bulk quantity. Please feel free to contact us for details.