Self-aligning Roller Bearings model system is mainly based on series classification, internal structure design, adaptive solutions and special performance to distinguish, the following specific model classification and representative specifications:
First, the core series classification 1. 222 series: covering the inner diameter of 90-400mm, such as 22215CC/W33 (inner diameter of 75mm/outer diameter of 130mm/thickness of 31mm), 22230 (inner diameter of 150mm/outer diameter of 270mm/thickness of 73mm). 73mm). 2. 223 series: ID 90-400mm, typical examples are 22330 (ID 150mm/OD 320mm/thickness 108mm). 3. 230/231 series: 230 series ID 100-1200mm (e.g. 23020CA/W33) 231 series ID 100-750mm (e.g. 23126CE4: ID 130mm/OD 210mm/thickness 64mm). 210mm/Thickness 64mm). 4. 232/239/240/241 series: 232 series ID 90-850mm 239 series ID 170-1200mm 240 series ID 100 -1080mm 241 series ID 100-850mm. Second, Internal structure code 1.CC type: symmetric roller + stamped steel cage, high load bearing and high speed (such as 22216CA/W33). 2.CA type: symmetrical roller + brass cage, impact resistance (such as 22205 spherical roller bearings). 3.MB type: brass cage optimised version (such as 23020MB/W33). 4.CE type: enhanced load bearing design (such as 23126CE4). Thirdly. Adaptation programme code 1.K type: conical bore (taper 1:12 or 1:30), need to be fitted with tightening sleeve installation (such as 20000CCK type). 2.K+H type: with tightening sleeve set (such as 20000CCK+H type). Special Performance Suffix 1./W33: outer ring with oil groove oil holes to optimise lubrication (such as 22214CC/W33). 2./C3: radial clearance greater than the standard group, to adapt to temperature rise deformation. 3./S2: High temperature resistant material, adapt to metallurgy and other high temperature scenes. Selection Tips Priority Scenarios: CA/MB for heavy load (mine/mill); CC for high speed and high precision; /W33+S2 combination for high temperature environment. Alternative: some working conditions can be used spherical ball bearings (such as 1315 type), but the bearing capacity is limited.
Note: Domestic head brand (such as human C&U, Wanxiang Qianchao) has achieved a full range of coverage, technical parameters against international standards.
