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21312 EK/C3 Double Row Spherical Roller Bearing
21312 EK/C3 Double Row Spherical Roller Bearing

21312 EK/C3 Double Row Spherical Roller Bearing

The 21312 EK/C3 is a double-row spherical roller bearing with a 60mm bore and 130mm outer diameter, crafted from sturdy chrome steel. It manages combined loads up to 48784 lbf and reaches speeds of 6300 RPM.

Its spherical roller design allows for slight misalignment, while the steel cage ensures durability. The open seal type and C3 radial clearance make it suitable for high-load applications.

This bearing requires regular lubrication, with a 3mm hole for easy greasing. It operates in temperatures from -30°C to 200°C, ideal for harsh environments.

Weighing 2.05kg, it’s robust yet manageable for industrial use. Compliant with RoHS and REACH standards, it’s a reliable choice for heavy machinery or conveyor systems.

Interchangeable with SKF bearings, it simplifies replacements. The tapered bore ensures a secure fit, perfect for applications needing precise alignment.

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Product Parameters

  • Part Number 21312 EK/C3
  • 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 C3
  • RoHs Compliant
  • REACH Compliant
  • Weight 2.05 kg
  • Price (US$) 63.86

Features

How Is 21312 EK/C3 Bearing Engineered for Reliability?

21312 EK/C3 Bearing features a double-row spherical roller design, ideal for handling combined loads with ease.
Its chrome steel construction ensures durability, even under high dynamic radial loads up to 48,784 lbf.

The tapered bore design enhances alignment, reducing stress and extending service life.
With a maximum speed of 6,300 rpm, it delivers consistent performance in demanding conditions.

21312 EK/C3 Bearing operates efficiently in temperatures ranging from -30° to 200°C.
Its open design allows for easy lubrication, ensuring smooth operation over time.

Application

Industrial Uses of 21312 EK/C3 Bearing
21312 EK/C3 Bearing is commonly used in heavy machinery like conveyor systems and industrial fans, where its double-row design handles combined loads efficiently. The spherical roller construction allows for slight misalignment, making it adaptable to various industrial setups.
In automotive applications, 21312 EK/C3 Bearing supports components such as gearboxes and axles, providing reliable performance under high radial and thrust loads. Its tapered bore ensures a secure fit, reducing slippage during operation.

Where Is 21312 EK/C3 Bearing Used?
You’ll find 21312 EK/C3 Bearing in wind turbines and mining equipment, where its high dynamic load capacity and temperature resistance are crucial. The open design simplifies lubrication, extending service life in demanding environments.
For automation systems, 21312 EK/C3 Bearing ensures smooth operation in robotic arms and assembly lines. Its steel cage and chrome steel rollers offer durability, even in high-speed scenarios.

Built for Heavy-Duty Use: 21312 EK/C3 Bearing
21312 EK/C3 Bearing excels in construction equipment like cranes and excavators, thanks to its robust design and C3 radial clearance. The lubrication groove and hole make maintenance straightforward, even in dusty conditions.
In marine applications, 21312 EK/C3 Bearing withstands harsh conditions while supporting propeller shafts and winches. Its wide temperature range ensures reliability in both hot and cold climates.

Automotive vs Aerospace: Applications of 21312 EK/C3 Bearing
In automotive systems, 21312 EK/C3 Bearing is ideal for drivetrains and wheel hubs, balancing radial and axial loads effectively. The metric sizing ensures compatibility with global vehicle standards.
For aerospace, 21312 EK/C3 Bearing’s high-speed capability and temperature resistance make it suitable for auxiliary systems. Its chrome steel construction meets stringent industry requirements for durability and performance.

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