The operational environment for bearings is unique to steelmaking, comprising particle contamination, water and heat.
In addition, the bearings may have to cope with heavy or shock loads and vibration, operational speeds ranging from extremely slow to extremely high, coupled with rapid acceleration and deceleration.
We offer a comprehensive range of bearings for the steel industry, from standard bearings to our own independently developed, high-capacity specialised bearings.
A typical problem for bearings in converters: the swivel bearing cannot be replaced without dismantling the central wheel.
NSK's ultra-large split Spherical Roller Bearings allow bearing replacement without removing the central wheel of the gearbox, thus reducing maintenance cost and shortening downtimes.
Differential speeds in the roller/raceway contact zone can cause uneven wear in spherical roller bearings and toroidal roller bearings. Spalling and cracks on the raceway of the outer ring are costly as they cause unplanned production stoppages and above-average consumption of bearings.
To tackle this problem, NSK has developed a range of full complement cylindrical roller bearings effective as non-locating position in guide rolls of continuous casting machines.
NSK offers specific bearings for rolling mills which guarantee higher reliability and longer operational service lives.
Sealed bearings minimise the environmental impact and help reduce grease consumption.
Super-Tough steel (STF series) with optimum heat treatment prevents cracks and early raceway damage.
In addition, NSK has developed WTF material (WTF series) for bearings which are exposed to water infiltration.
The four-row extra-capacity sealed-clean taper roller bearings (KVS series) are capacity-optimised, resistant to contamination by foreign matter and now also available with specially formulated grease against water infiltration.
NSK solution for four-row tapered roller bearings in rolling mills. These bearings offer long service life, reduced maintenance cost and increased operational efficiency.
Optional we offer: Super TF, WTF, Sealed Clean and
new grease AQGRD >>
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