■ Grinding Mill Main Bearings Type
Classification by material: ductile iron casting, Q235B welded structure;
■ Main Bearing Housing material of nodular cast iron mill
QT450-10，QT400-18AR，EN-GJS-400-18;
■ Equipment Type 
Ball mill, AG mill / SAG mill, Rod mill, Cement mill, Cement rotary kiln, Metallurgical rotary furnace, etc;
■ Main Bearing Housing weight range
200Kg-12000Kg;
■ Size of nodular cast iron Main Bearing Housing casting
GB / T6414-1999 ct11;
■ Properties of nodular cast iron Bearing Housing casting
the casting meets the requirements of GB / t1348-2009: tensile strength R M ≥ 385mpa, yield strength R P 0.2 ≥ 250Mpa, elongation a ≥ 12%;
■ Casting spheroidization grade
GB / 9441 grade 2;
■ Internal quality of casting
En12680-3-2003 ultrasonic flaw detection level 2, magnetic particle flaw detection level 2.