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249/850 CAK30/W33 Double Row Spherical Roller Bearing

249/850 CAK30/W33 Double Row Spherical Roller Bearing

The 249/850 CAK30/W33 is a double-row spherical roller bearing with a large 850mm bore and 1120mm outer diameter, built from tough chrome steel. It handles heavy combined loads, with a dynamic radial capacity of 2,110,956 lbf and a static rating of 5,125,644 lbf.

Its spherical roller design allows smooth rotation even under misalignment, while the brass cage ensures durability. The bearing operates at speeds up to 400 RPM and works in temperatures from -30°C to 200°C.

The tapered bore (1:30 ratio) provides a secure fit, and the lubrication groove (22.3mm wide) makes maintenance straightforward. Compliant with RoHS and REACH standards, it’s a reliable choice for heavy machinery like crushers or large gearboxes.

Weighing 725kg, this bearing is built for demanding industrial applications where strength and alignment tolerance are key. Its open design requires regular lubrication for optimal performance.

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Product Parameters

  • Part Number 249/850 CAK30/W33
  • Brand TFL
  • Interchangeable SKF
  • Size 850 x 1120 x 272 mm
  • Bore Dia 850 mm
  • Bore Dia Tolerance +0.1mm to 0
  • Outer Dia 1120 mm
  • Outer Dia Tolerance -0.125mm to 0
  • Width 272 mm
  • Width Tolerance -1mm to 0
  • Shoulder Dia Of Inner Ring 940 mm
  • Shoulder/Recess Dia Of Outer Ring 1029 mm
  • Width Of Lubrication Groove 22.3 mm
  • Diameter Of Lubrication Hole 12 mm
  • Chamfer Dimension min.6 mm
  • System of Measurement Metric
  • Radial run-out Standard
  • Bearing Type Roller
  • Roller Bearing Type Spherical
  • Bore Type Taper 1:30
  • For Load Direction Combined
  • Construction Double Row
  • Seal Type Open
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Brass
  • Dynamic Radial Load 2110956 lbf
  • Static Radial Load 5125644 lbf
  • Max Speed 400 rpm
  • Lubrication Required
  • Temperature Range -30° to 200 °C
  • Radial Clearance CN
  • RoHs Compliant
  • REACH Compliant
  • Weight 725 kg

Features

Performance Features of 249/850 CAK30/W33 Bearing

249/850 CAK30/W33 Bearing is built with chrome steel rings and rollers, offering robust resistance to combined loads.
Its dynamic radial load capacity reaches 2,110,956 lbf, making it suitable for heavy-duty industrial applications.

The brass cage ensures smooth roller alignment, reducing friction and enhancing durability.
With a maximum speed of 400 rpm, it delivers reliable performance under demanding conditions.

249/850 CAK30/W33 Bearing operates efficiently in temperatures ranging from -30° to 200°C.
Its tapered bore design simplifies installation, ensuring secure fitting and alignment.

The lubrication groove and holes in 249/850 CAK30/W33 Bearing facilitate consistent grease distribution.
This feature helps maintain smooth operation and extends maintenance intervals.

249/850 CAK30/W33 Bearing’s spherical roller design accommodates minor misalignments.
This ensures consistent performance even in challenging operational environments.

Application

Industrial Uses of 249/850 CAK30/W33 Bearing
This bearing is commonly used in heavy machinery like crushers and vibrating screens, where its double-row design handles both radial and axial loads efficiently. The brass cage ensures smooth operation even under high stress.

In mining equipment, 249/850 CAK30/W33 Bearing supports large rotating components, thanks to its robust chrome steel construction. The tapered bore design simplifies installation and maintenance in challenging environments.

For wind turbines, 249/850 CAK30/W33 Bearing’s spherical roller design accommodates misalignment, ensuring reliable performance in variable conditions. Its high load capacity makes it suitable for the main shaft and gearbox applications.

Where Is 249/850 CAK30/W33 Bearing Used?
You’ll find this bearing in paper mills, where it supports large rollers under constant load. The open seal design allows for easy lubrication, extending service life in dusty conditions.

Built for Heavy-Duty Use: 249/850 CAK30/W33 Bearing
In steel plants, this bearing excels in rolling mills, handling extreme loads and temperatures. The metric sizing ensures compatibility with European and Asian industrial equipment standards.

Automotive vs Aerospace: Applications of 249/850 CAK30/W33 Bearing
While not typical in cars, this bearing is vital in aerospace ground equipment like cargo loaders. Its high static load capacity ensures safety and reliability in critical operations.

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