20x42x12; bearing standard ball bearing (1pcs, sealing type: double-sided/with z type plates, temperature range -20/120°C, grease type: GA14). B002G1UKS8 AMAZON (ASIN), 6004-2Z FAG, 6004-2ZR FAG, 6004-C-2Z FAG, 6004-C-2Z>V FAG, 6004ZZ FERSA, 6004-2Z NKE, 6004ZZ NSK, 0949826600000 SCHAEFFLER GRUPPE, 3003955900000 SCHAEFFLER GRUPPE, 6004-2Z SKF, 6004-ZZ TIMKEN.