12" 4 Rows Sealed Cylindrical Roller Bearing for Steel Manufacturing

• Rolling Body：Roller Bearings
• The Number of Rows：4 Rows
• Outer Dimension：Large (200-430mm)
• Material：Bearing Steel
• Spherical：Aligning Bearings
• Load Direction：Radial Bearing

=== Base Info ===

• Separated：Separated
• Transport Package：Cloth
• Specification：Customized
• Trademark：HBB
• Origin：Luoyang, China
• Production Capacity：30000 PCS Yearly

=== Description ===

Basic Info.

Separated Separated Transport Package Cloth Specification Customized Trademark HBB Origin Luoyang, China Production Capacity 30000 PCS Yearly

Product Description

HBB High Performance Cylindrical Roller Bearing for Rolling Mills
With years of field experience, products development and accumulated technologies, HBB High performance bearings help to maximize uptime and to reduce maintenance cost for steel industries.



Rolling neck bearings are required to bear heavy loads and high speed rotation in severe environments. We strive every day to develop bearings materials and technology that minimizes temperature increases and improve the sealing performance of bearing seals and other similar situations in order to meet those needs.



Features of HBB Oil Seals:

Our seals offer high sealing performance while being compact with reduced seal width.
Our seals adopt a linear contact lip which provides proper radial lip load. This design ensures excellent sealing performance, low torque, proper flexibility and high allowability for eccentricity.
Our seals adopt low heat generation and long service life by highly self-lubricating rubber materials.



Four Row Tapered roller bearings are very popular for use on roll necks. Most of these bearings
are composed of two double cones (four Inner ring raceways), a cone spacer, two single cups (one at each end), one double cone (the center two raceways in the outer rings), and two cup spacers. They are very effective at operating under heavy radial and axial loads at low to moderate speeds.

HBB four row tapered bearings are standardly supplied with carburized rings and rollers and are
compatible with industry standards. "Sealed-Clean" bearings are four row tapers with seals for the harshest of operating environments. HBB's patented design provides the optimum sealing efficiency with only a slight loss of capacity.

Four Row Cylindrical roller bearings are also popular roll neck bearings providing several
benefits. First, the inner ring is separable from the outer ring and rollers which allows the inner ring to remain with the roll during grinding processes. This assures precise concentricity and negligible run-out providing for high rolling accuracy. Secondly, this design allows for greater radial load carrying and higher operating speeds. Four row cylindricals require a thrust bearing which is usually a two row taper, angular contact ball bearing, or a deep groove ball bearing depending on the thrust load present.



Two Row Tapered roller bearings are very common as the back-up thrust bearing in a rolling mill
or as the roll neck in lighter duty rolling mills. Two row tapers are designed in a variety of styles for different applications. Converging bearings (TDI,TDIE,TDIS) consist of one double cone and two single cups possibly with a cup spacer. Diverging bearings (TDO,TDOD,TDOC) consist of two single cones, a cone spacer, and one double cup.

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