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/*728*90 created on 2018/5/16*/ var cpro_id = "u3440131"; Home>Bearing knowledge>NSK rolling mill bearing equipment type NSK mill bearing equipment type
(1) Spherical Roller Bearings Early rolling mill NSK bearings are not the same type of equipment on the rolling mills; at the same time, two sets of spherical roller NSK bearings are used side by side on the same roll neck. This type of equipment is basically satisfactory. The production conditions at that time; the rolling speed can reach 600 rpm. However, with the advancement of speed, the defects are more and more outstanding: NSK bearing has short life, high cost, low product precision, severe roll neck wear and large roll axial turbulence. Wait. /*250*250 was created on 2017/12/25*/ var cpro_id = 'u3171089';
(2), four-row cylindrical roller bearing + thrust NSK bearing cylindrical roller bearing inner diameter and roller neck selection tight cooperation; accept radial force; with large load capacity, high limit speed, high precision, inner and outer rings can be separated and able The advantages of exchange, simple processing, low production cost, convenient installation and disassembly, etc., thrust NSK bearings to accept axial force; detailed layout type can be selected according to the characteristics of the rolling mill.
Heavy-duty at low speed; with thrust roller bearing; with small axial clearance to accept thrust load. When rolling speed is high; with angular touch ball NSK bearing; not only high limit speed; The clearance can be strictly controlled. The roller is tightly guided in the axial direction; and the normal axial load can be accepted.
This NSK bearing equipment type not only has NSK bearing long life; high reliability; and has many advantages such as high precision and easy handling of rolled products; so it is currently the most widely used; it is mostly used in wire rod mills, sheet mills, foil mills, doubles. Support roll mill cold rolling mill and hot rolling mill support roller.
(3), four-row tapered roller bearing tapered roller NSK bearing can accept radial force; can also accept axial force; no need to equip the thrust NSK bearing; thus the host appears to be more compact. Tapered roller NSK bearing inner diameter and roller The neck is loosely matched; the device and the disassembly are very convenient; but sometimes the sliding creep is caused by the loose cooperation; therefore, the inner diameter is often processed with a spiral oil groove.
The current use of this type of equipment is still relatively extensive; such as four-roll hot rolling mill and cold rolling mill work rolls, blanking machines, steel beam rolling mills and other occasions.
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NSK mill bearing equipment type
Source: China Bearing Network Time: 2014-03-06