September 2021 - Under the extreme and rapid heating of calendar rolls in paper making machines, the typical bearing will rapidly fail due to repeated hoop stresses. TL-Series Spherical Roller Bearings from NSK were created to dramatically increase service life and maintenance intervals, while dramatically reducing costs.
INDUSTRY
PAPER, PAPERBOARD AND PULP MILLS
APPLICATION
CALENDER ROLL
COST SAVINGS
$377,225 (5 YEARS)
Using a competitor’s bearing without carburized inner rings, a paper mill was experiencing failures in their calender roll bearings. Due to inner ring cracking, the mill was experiencing 10 failures annually which required downtime for change outs and additional maintenance time.
KEY FACTS
VALUE PROPOSALS
PRODUCT FEATURES
NSK’s TL (Tough and Long Life™) Series of Spherical Roller Bearings are specifically designed for dryer rolls in papermaking machinery which operate in extreme high temperature conditions.
To learn more, download the NSK Case Study (761k, PDF)
SOURCE: NSK
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