( 1) bearing from the ordinary type cylindrical roller bearings to the special requirements of the enhanced cylindrical roller bearings, bearing solid cage material from the original steel replaced bronze parts, special requirements of tempering temperature, bearing clearance selected is larger than the bearing current standard value, increase to about 012mm. The bearing dynamic load rating than the ordinary type bearing is increased by 20%～ 40%, the axial load capacity is increased by about 113 times, greatly improving the vibration of bearings bearing condition, the bearing limit speed can be improved effectively, overcome by ordinary type bearing caused premature failure phenomenon.
( 2) in a bearing seat arranged on oil filling, its structure and principle, the improved bearing structure can greatly improve the bearing sliding condition, effective solution to the bearing lubrication deficiencies and poor heat dissipation design defects.
( 3) using motion viscosity of 2832 centistokes to antioxidant stability of HU230 turbine oil for lubricating oil, solve the original bearing temperature rise to about 80 ℃, lubricating oil film difficult problem, ensure the roller and raceway contact surface can form a sufficiently thin oil film.
( 4 ) improving the vibration wheel of the oil cavity cleanliness. The oil cavity steel plate welding after the shot peening treatment, complete removal of oxide skin, such as welding slag residue in shot peening, within 4h after coating resistance paint, and in the assembly process using the effective dust anticorrosive measures, so that the bearing oil cavity cleanliness control.
( 5 ) improving the vibration wheel vibration bearing block bearing hole on the ends of the same to the gap, so that the vibration of bearing inner ring and the outer ring axial clearance between the increase to 1112mm, effectively solve the causes of axial clearance is too small to bearing inner ring and the outer ring friction damage problem.
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