NTN Bearings for Preparing Rolls Sendzimir Rolling Mills

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NTN unsealed support rollers are lubricated with a low-viscosity rolling oil. Very high flow rates are needed to ensure sufficient lubrication of the support rollers under the prevailing critical operating conditions. This prevents the bearings from heating up excessively and keeps foreign particles out.Since bearings are directly used in preparing rolls, the thickness of the outer ring is designed to be thicker than regular bearings. ¡Since high accuracy under heavy loads is required, these bearings are designed to have a capacity for heavy loads and high accuracy.

 

 Bearings for Rolling mill Rolls. Rolling mills for rolling of steel differ in many aspects with each other. The rolling mills are of different sizes and capacities. The mills roll steel materials of different cross-sections, sizes and qualities and in material conditions which are either hot or cold.The first in the USSR rolls for hot-rolling mills were produced from ingots weighing up to 40 tons at Uralmashplant.The plant began producing large ingots, weighing 60 tons and more, in 1935-1936, which allowed to manufacture large backup rolls for rolling mills.