What are the most popular models of sealed four row tapered roller bearings?

Oct 22, 2021

Four-row tapered roller bearings are designed specifically to support the work rolls of rolling mill stands. As their purpose suggests, they are engineered to withstand heavy and impact loads transmitted – radially and axially – as steel passes through rolling stands and is reduced in thickness by the work rolls. They must also accommodate wide speed variations with rapid acceleration and deceleration.

Equally challenging to these bearings is the environment: not only high temperatures but mill scale contamination and water penetration as well. FV four-row tapered roller bearings are available with carbonitriding steel to deliver superior durability and wear resistance. For aggressive environments, FV's Sealed design offers improved heat- and water-resistant sealing protection, promoting reduced grease consumption and maintenance costs.

PROVEN BENEFITS

1. Higher reliability and longer operating life with（ VD+LF or ESR ) Ni & Mo low carbon alloy steel, reducing bearing replacement and maintenance intervals

2. Sealed design solution extends bearing performance, promotes a cleaner work environment and significantly reduces grease consumption

3. Advanced Palmax grease from KYODO YUSHI for sealed-type bearings provides optimal water-resistance, preventing grease deterioration and bearing damage

DESIGN FEATURES 1. Special design high load capacity four-row tapered roller bearing 2. With carbonitriding steel for dramatically longer service life under contaminated operating conditions 3. With machined steel window and pin-type cages 4. Spiral groove on the inner ring bore to prevent creeping wear on the roll neck shaft 5. Available as open or advanced heat- and water-resistant sealed-type bearings 6. Sealed version available with long-life PALMAX grease 7. Corrosion resistant phosphate option for inner ring 8. With special radial and axial internal clearances 9. Available in inch and metric design types

DESIGNATION SYSTEM (SEALED TYPE)

BEARING DIMENSIONS AND OPERATING VALUES (SEALED TYPE)

Note: Bearings marked （ * ) are inch size design.