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Four-Row Cylindrical Roller Bearings BC4B 457939 VAA

Four-Row Cylindrical Roller Bearings BC4B 457939 VAA

The BC4B 457939 VAA is a four-row cylindrical roller bearing with a large 356.67mm bore and 550mm outer diameter, designed for heavy-duty applications. It handles combined loads with a dynamic radial capacity of 1,188,000 lbf and static radial capacity of 3,375,000 lbf.

Its robust construction includes a chamfered inner ring (3.2mm) and outer ring (4mm) for easier installation. The bearing works with both grease and oil lubrication, suitable for temperatures from -30°C to 110°C.

The four-row design provides excellent load distribution, making it ideal for industrial machinery like rolling mills or large gearboxes. Compliant with RoHS and REACH standards, it’s a reliable choice for demanding environments.

With a width of 400mm, this bearing offers stability in high-load scenarios while maintaining smooth operation. It’s interchangeable with SKF models for convenient replacements.

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Product Parameters

  • Part Number BC4B 457939 VAA
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 356.67 mm
  • Outer Dia 550 mm
  • Width 400mm
  • Corner Radius/Chamfer Inner Ring(r1,2)(min.) 3.2 mm
  • Chamfer Dimension On The Outer Ring(r3,4)(min.) 4 mm
  • System of Measurement Metric
  • Roller Bearing Type Cylindrical
  • For Load Direction Combined
  • Dynamic Radial Load 1188000 lbf
  • Static Radial Load 3375000 lbf
  • Lubrication Grease, Oil
  • Temperature Range -30° to 110 °C
  • RoHS Compliant
  • REACH Compliant
Four-Row Cylindrical Roller Bearings BC4B 457939 VAA dimension drawing
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Features

Performance Features of BC4B 457939 VAA Bearing

BC4B 457939 VAA Bearing is built with a four-row cylindrical roller design, ideal for handling combined loads.
Its dynamic radial load capacity of 1,188,000 lbf ensures robust performance in heavy-duty applications.

The bearing operates efficiently within a temperature range of -30° to 110°C, suitable for various environments.
With lubrication options for grease or oil, BC4B 457939 VAA Bearing offers flexibility in maintenance.

The chamfer dimensions on the inner and outer rings enhance ease of installation and alignment.
Its large size (356.67 mm x 550 mm x 400 mm) makes it suitable for industrial machinery requiring high load capacity.

Application

Industrial Uses of BC4B 457939 VAA Bearing
BC4B 457939 VAA Bearing is commonly used in heavy industrial machinery, such as rolling mills and large gearboxes, where its four-row design handles high radial and axial loads effortlessly.
The large bore size (356.67 mm) makes it ideal for applications requiring robust support, like paper processing equipment or mining conveyors.

What Makes BC4B 457939 VAA Bearing a Preferred Choice?
In steel production, BC4B 457939 VAA Bearing’s cylindrical rollers ensure smooth operation under extreme loads, reducing downtime in continuous casting machines.
Its compatibility with both grease and oil lubrication allows flexibility in maintenance, suiting various industrial environments.

Built for Heavy-Duty Use: BC4B 457939 VAA Bearing
For wind turbine main shafts, BC4B 457939 VAA Bearing provides reliable performance with its high static radial load capacity (3,375,000 lbf).
The metric dimensions (550 mm outer diameter) ensure seamless integration into European-designed heavy equipment.

Automotive vs Aerospace: Applications of BC4B 457939 VAA Bearing
In large commercial vehicles, BC4B 457939 VAA Bearing supports drivetrain components, handling combined loads from rough terrain.
While not typically used in aerospace, its precision makes it suitable for ground support equipment like aircraft tow tractors.

Where Is BC4B 457939 VAA Bearing Used?
You’ll find BC4B 457939 VAA Bearing in marine propulsion systems, where its corrosion-resistant materials withstand harsh saltwater conditions.
The wide temperature range (-30° to 110°C) ensures consistent performance in Arctic drilling rigs or desert mining operations.

Q&A

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