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239/670 CA/W33 Double Row Spherical Roller Bearing

239/670 CA/W33 Double Row Spherical Roller Bearing

The 239/670 CA/W33 is a double-row spherical roller bearing with a large 670mm bore and 900mm outer diameter, built from tough chrome steel. It handles heavy combined loads up to 1,156,867 lbf and runs smoothly at speeds up to 670 RPM.

Its brass cage and open design allow for easy lubrication, while the spherical rollers adjust to misalignment. The bearing operates reliably in temperatures from -30°C to 200°C.

This model is interchangeable with SKF bearings, making it a practical choice for replacements. Suitable for heavy-duty applications like industrial gearboxes or large machinery where high radial and axial loads are present.

Weighing 310kg, it’s built for durability in demanding environments. Compliant with RoHS and REACH standards for safe use.

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Product Parameters

  • Part Number 239/670 CA/W33
  • Brand TFL
  • Interchangeable SKF
  • Size 670 x 900 x 170 mm
  • Bore Dia 670 mm
  • Bore Dia Tolerance -0.075mm to 0
  • Outer Dia 900 mm
  • Outer Dia Tolerance -0.1mm to 0
  • Width 170 mm
  • Width Tolerance -0.75mm to 0
  • Shoulder Dia Of Inner Ring 752 mm
  • Shoulder/Recess Dia Of Outer Ring 835 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 Cylindrical
  • For Load Direction Combined
  • Construction Double Row
  • Seal Type Open
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Brass
  • Dynamic Radial Load 1156867 lbf
  • Static Radial Load 2427937 lbf
  • Max Speed 670 rpm
  • Lubrication Required
  • Temperature Range -30° to 200 °C
  • Radial Clearance CN
  • RoHs Compliant
  • REACH Compliant
  • Weight 310 kg
  • Price （US$） US$12,982.95

Features

Performance Features of 239/670 CA/W33 Bearing

239/670 CA/W33 Bearing is built with chrome steel rings and rollers, offering excellent resistance to combined loads.
Its dynamic radial load capacity reaches 1,156,867 lbf, ensuring robust performance in heavy-duty applications.

The brass cage maintains roller alignment, reducing friction and enhancing durability.
With a maximum speed of 670 rpm, it balances strength and efficiency for industrial use.

Designed for high-temperature environments, 239/670 CA/W33 Bearing operates reliably from -30° to 200°C.
The lubrication groove and holes ensure consistent performance, even under continuous operation.

Application

Industrial Uses of 239/670 CA/W33 Bearing
The 239/670 CA/W33 Bearing is commonly used in heavy machinery like crushers and vibrating screens, where its double-row design handles high radial and axial loads effortlessly.
Its brass cage and chrome steel rollers ensure durability in harsh environments, making it a reliable choice for mining and construction equipment.

What Makes 239/670 CA/W33 Bearing a Preferred Choice?
In wind turbines, 239/670 CA/W33 Bearing excels due to its ability to withstand misalignment and heavy loads while maintaining smooth operation.
The lubrication groove and holes simplify maintenance, extending service life in remote or hard-to-access installations.

Built for Heavy-Duty Use: 239/670 CA/W33 Bearing
This bearing shines in paper mill machinery, where its spherical rollers compensate for shaft deflection under constant stress.
The wide temperature range (-30° to 200°C) allows consistent performance in both hot processing areas and cold storage facilities.

Automotive vs Aerospace: Applications of 239/670 CA/W33 Bearing
While too large for most vehicles, 239/670 CA/W33 Bearing proves invaluable in aerospace ground support equipment like aircraft tugs.
Its massive static load capacity (2,427,937 lbf) makes it ideal for stationary applications requiring extreme load-bearing stability.

Essential Roles of 239/670 CA/W33 Bearing
In steel production lines, 239/670 CA/W33 Bearing supports rolling mill stands where shock loads are frequent.
The CN radial clearance provides optimal performance balance between precision and thermal expansion tolerance.

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