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239/670 CAK/W33 Double Row Spherical Roller Bearing

239/670 CAK/W33 Double Row Spherical Roller Bearing

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

Its brass cage and open design ensure durability, while the tapered bore (1:12) allows for secure fitting. The bearing operates in temperatures from -30°C to 200°C and requires regular lubrication for optimal performance.

With a weight of 300kg, this heavy-duty model is suited for demanding industrial applications like mining equipment or large gearboxes. It meets RoHS and REACH standards and is interchangeable with SKF bearings for easy replacement.

The lubrication groove and holes (12mm diameter) make maintenance straightforward, and the spherical roller design accommodates misalignment. Ideal for high-load scenarios where reliability is key.

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Product Parameters

  • Part Number 239/670 CAK/W33
  • Brand TFL
  • Interchangeable SKF
  • Size 670 x 900 x 170 mm
  • Bore Dia 670 mm
  • Bore Dia Tolerance +0.08mm 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 Taper 1:12
  • 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 300 kg
  • Price （US$） US$12,982.95

Features

Performance Features of 239/670 CAK/W33 Bearing

239/670 CAK/W33 Bearing is built with chrome steel rings and rollers, offering high resistance to combined loads.
Its dynamic radial load capacity reaches 1,156,867 lbf, making it suitable for heavy-duty applications.

The brass cage ensures proper roller alignment, enhancing durability and reducing friction.
With a maximum speed of 670 rpm, it delivers reliable performance in demanding conditions.

239/670 CAK/W33 Bearing operates efficiently in temperatures ranging from -30° to 200°C.
Its tapered bore design simplifies installation, ensuring a secure fit and reducing maintenance needs.

The lubrication groove and hole in 239/670 CAK/W33 Bearing promote consistent oil distribution.
This feature helps maintain smooth operation and extends the bearing’s service life.

Application

Industrial Uses of 239/670 CAK/W33 Bearing
This bearing is commonly used in heavy machinery like mining equipment and large conveyor systems, where its double-row design handles both radial and axial loads efficiently. The brass cage ensures smooth operation even under high stress.

Where Is 239/670 CAK/W33 Bearing Used?
You’ll often find it in wind turbines, where its spherical roller design accommodates misalignment and heavy loads. The chrome steel construction provides long-lasting performance in harsh outdoor conditions.

Built for Heavy-Duty Use: 239/670 CAK/W33 Bearing
It’s a go-to choice for steel mills and paper processing plants, thanks to its high dynamic load capacity. The tapered bore design simplifies installation on large shafts.

Automotive vs Aerospace: Applications of 239/670 CAK/W33 Bearing
While too large for most vehicles, this bearing excels in aerospace ground support equipment like cargo loaders. Its temperature range suits both cold storage and engine-adjacent applications.

Key Fields for 239/670 CAK/W33 Bearing
In hydroelectric power plants, it supports massive turbine shafts with reliable performance. The lubrication groove design extends service intervals in hard-to-access installations.

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