{"id":4685,"date":"2026-09-11T13:58:46","date_gmt":"2026-09-11T13:58:46","guid":{"rendered":"https:\/\/www.rendatsp.com\/product\/skf-6306-2z-c3-deep-groove-ball-bearing-30x72x19-mm\/"},"modified":"2026-10-24T10:25:16","modified_gmt":"2026-10-24T10:25:16","slug":"skf-6306-2z-c3-deep-groove-ball-bearing-30x72x19-mm","status":"publish","type":"product","link":"https:\/\/www.rendatsp.com\/ar\/product\/skf-6306-2z-c3-deep-groove-ball-bearing-30x72x19-mm\/","title":{"rendered":"SKF 6306-2Z\/C3 Deep Groove Ball Bearing (30\u00d772\u00d719 mm)"},"content":{"rendered":"

The SKF 6306-2Z\/C3 is a single row deep groove ball bearing with a 30 mm bore, 72 mm outside diameter and 19 mm width, fitted with a non-contact metal shield on both sides (2Z) and C3 radial internal clearance. It belongs to the SKF Explorer performance class and, per SKF, carries a basic dynamic load rating of 29.6 kN and a basic static load rating of 16 kN.<\/p>\n

The designation can be read directly: 6<\/strong> = single row deep groove ball bearing, 3<\/strong> = ISO dimension series 03 (medium), a heavier cross-section with larger balls for higher loads on the same shaft size; 06<\/strong> = bore code for 30 mm (06 x 5); 2Z<\/strong> = shields on both sides; C3<\/strong> = radial internal clearance greater than normal.<\/p>\n

Shields leave a narrow gap to the inner ring, so friction stays low and SKF lists a limiting speed of 11,000 r\/min for this version, compared with 6,300 r\/min for the sealed 6306-2RS1\/C3. That makes the 2Z design the usual choice for electric motors, fans and other clean, fast-running positions.<\/p>\n

Technical data<\/h3>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
SKF designation<\/th>\n6306-2Z\/C3<\/td>\n<\/tr>\n
Bearing type<\/th>\nSingle row deep groove ball bearing<\/td>\n<\/tr>\n
Dimension series<\/th>\n63 – ISO dimension series 03 (medium)<\/td>\n<\/tr>\n
Bore diameter (d)<\/th>\n30 mm<\/td>\n<\/tr>\n
Outside diameter (D)<\/th>\n72 mm<\/td>\n<\/tr>\n
Width (B)<\/th>\n19 \u0645\u0645<\/td>\n<\/tr>\n
Basic dynamic load rating (C)<\/th>\n29.6 kN<\/td>\n<\/tr>\n
Basic static load rating (C0)<\/th>\n16 kN<\/td>\n<\/tr>\n
Reference speed<\/th>\n20,000 r\/min<\/td>\n<\/tr>\n
Limiting speed<\/th>\n11,000 r\/min<\/td>\n<\/tr>\n
SKF performance class<\/th>\nSKF Explorer<\/td>\n<\/tr>\n
Sealing<\/th>\nShield on both sides (non-contact)<\/td>\n<\/tr>\n
Radial internal clearance<\/th>\nC3 (greater than normal)<\/td>\n<\/tr>\n
Cage<\/th>\nSheet metal (pressed steel)<\/td>\n<\/tr>\n
Bore type<\/th>\nCylindrical<\/td>\n<\/tr>\n
Lubricant<\/th>\nGrease, no relubrication feature<\/td>\n<\/tr>\n
Material<\/th>\nBearing steel<\/td>\n<\/tr>\n
Net weight<\/th>\n0.353 kg<\/td>\n<\/tr>\n
Condition<\/th>\nNew, original SKF<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Typical applications<\/h3>\n