NSK Spherical Roller Bearings , Cylindrical Bore Bearings 21311EAKE4, D=55 Type_12^Open Type material S58C Hardness (HRC) 54

material S58C Hardness (HRC) 54 ~ 60 (blade part) Blade angle 22 ° Product Code

Very high impact

Cr C0r Grease Oil 7202CTYP5 15 35 11 0

984-01 and 985-01)

NSK Spherical Roller Bearings , Cylindrical Bore Bearings 21311EAKE4, D=55 Type_12^Open Type material S58C Hardness (HRC) 54NSK Spherical Roller Bearings , Cylindrical Bore Bearings 21311EAKE4, D=55 Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min 1) Constant e Axial Load Factors Mass (kg) approx. d D B r min. Cr C0r Thermal Reference Mechanical Grease Oil Y2 Y3 Y0 21311EAKE4 55 120 29 2 178 174 5300 8000 4500 5600 0. 23 4. 4 3 2. 9 1. 58 DESIGN, TYPES, AND FEATURES Various types of high load capacity spherical roller bearings are