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21312K CKJ Double Row Spherical Roller Bearing
21312K CKJ Double Row Spherical Roller Bearing

21312K CKJ Double Row Spherical Roller Bearing

The 21312K CKJ is a double-row spherical roller bearing with a 60mm tapered bore and 130mm outer diameter, crafted from sturdy chrome steel. It manages combined loads up to 48784 lbf and operates smoothly at speeds up to 6300 RPM.

Its open design and steel cage ensure durability, while the tapered bore allows for secure fitting. The bearing performs reliably in temperatures ranging 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 mining equipment where high radial loads are common.

Weighing 2.05kg, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards for safe and eco-friendly use.

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Product Parameters

  • Part Number 21312K CKJ
  • Brand TFL
  • Interchangeable SKF
  • Size 60 x 130 x 31 mm
  • Bore Dia 60 mm
  • Bore Dia Tolerance +0.03mm to 0
  • Outer Dia 130 mm
  • Outer Dia Tolerance -0.018mm to 0
  • Width 31 mm
  • Width Tolerance -0.06mm to 0
  • Shoulder Dia Of Inner Ring 87.8 mm
  • Shoulder/Recess Dia Of Outer Ring 115 mm
  • Width Of Lubrication Groove 6 mm
  • Diameter Of Lubrication Hole 3 mm
  • Chamfer Dimension min.2.1 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 Steel
  • Dynamic Radial Load 48784 lbf
  • Static Radial Load 53954 lbf
  • Max Speed 6300 rpm
  • Lubrication Required
  • Temperature Range -30° to 200 °C
  • Radial Clearance CN
  • RoHs Compliant
  • REACH Compliant
  • Weight 2.05 kg
  • Price (US$) 49.14

Features

Performance Features of 21312K CKJ Bearing

21312K CKJ Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 48784 lbf, ensuring reliable performance in heavy-duty applications.

The double-row spherical roller design accommodates misalignment, reducing stress and extending service life.
With a maximum speed of 6300 rpm, it balances durability and efficiency for industrial use.

21312K CKJ Bearing operates in temperatures from -30° to 200°C, suitable for varied environments.
The tapered bore design ensures secure fitting, enhancing stability during high-speed rotation.

Application

Industrial Uses of 21312K CKJ Bearing
21312K CKJ Bearing is commonly used in heavy machinery like crushers and vibrating screens, where its double-row design handles combined loads efficiently. The spherical roller construction also compensates for minor misalignments, ensuring smoother operation.

In automotive applications, 21312K CKJ Bearing supports drivetrain components, particularly in commercial vehicles requiring high radial load capacity. Its tapered bore design simplifies installation, making it a reliable choice for maintenance teams.

For automation systems, 21312K CKJ Bearing fits well in robotic arms and conveyor belts, thanks to its durability and high-speed capability. The chrome steel rollers provide long service life even in demanding industrial environments.

Where Is 21312K CKJ Bearing Used?
You’ll often find 21312K CKJ Bearing in mining equipment, where its robust construction withstands harsh conditions. The lubrication groove ensures consistent performance, reducing downtime for maintenance.

In wind turbines, 21312K CKJ Bearing plays a key role in supporting rotor shafts, handling both radial and axial loads. Its temperature range of -30° to 200°C makes it suitable for varying weather conditions.

Built for Heavy-Duty Use: 21312K CKJ Bearing
21312K CKJ Bearing excels in construction machinery like cranes and excavators, where high static radial load capacity is essential. The steel cage adds durability, even under continuous heavy loads.

For industrial fans and blowers, 21312K CKJ Bearing offers reliable performance with minimal vibration. Its open design allows for easy relubrication, extending the bearing’s service life.

Automotive vs Aerospace: Applications of 21312K CKJ Bearing
In automotive systems, 21312K CKJ Bearing is ideal for wheel hubs and transmissions, balancing load and speed requirements. The metric sizing ensures compatibility with global vehicle standards.

For aerospace ground equipment, 21312K CKJ Bearing supports auxiliary systems like fuel pumps. Its high-temperature tolerance and precision make it a practical choice for critical applications.

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