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21311 CC W33 Double Row Spherical Roller Bearing
21311 CC W33 Double Row Spherical Roller Bearing

21311 CC W33 Double Row Spherical Roller Bearing

The 21311 CC W33 is a double-row spherical roller bearing with a 55mm bore and 120mm outer diameter, crafted from robust chrome steel. It handles combined loads up to 35745 lbf and operates smoothly at speeds up to 7500 RPM.

Its spherical roller design accommodates misalignment, while the steel cage ensures durability. The open construction allows for easy lubrication, with grooves and holes for efficient maintenance.

This bearing suits high-load applications like industrial gearboxes or heavy machinery, where reliability is key. It performs well in temperatures from -30°C to 200°C.

Weighing 1.7kg, it’s a sturdy choice for demanding environments. Compliant with RoHS and REACH standards, it’s interchangeable with SKF models for easy replacement.

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Product Parameters

  • Part Number 21311 CC W33
  • Brand TFL
  • Interchangeable SKF
  • Size 55 x 120 x 29 mm
  • Bore Dia 55 mm
  • Bore Dia Tolerance -0.015mm to 0
  • Outer Dia 120 mm
  • Outer Dia Tolerance -0.015mm to 0
  • Width 29 mm
  • Width Tolerance -0.06mm to 0
  • Shoulder Dia Of Inner Ring 72.7 mm
  • Shoulder/Recess Dia Of Outer Ring 96.2 mm
  • Width Of Lubrication Groove 6 mm
  • Diameter Of Lubrication Hole 3 mm
  • Chamfer Dimension min.2 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 Steel
  • Dynamic Radial Load 35745 lbf
  • Static Radial Load 37318 lbf
  • Max Speed 7500 rpm
  • Lubrication Required
  • Temperature Range -30° to 200 °C
  • Radial Clearance CN
  • RoHs Compliant
  • REACH Compliant
  • Weight 1.7 kg
  • Price (US$) 41.58

Features

Performance Features of 21311 CC W33 Bearing

21311 CC W33 Bearing is built with chrome steel rings and rollers, offering robust resistance to combined loads.
Its dynamic radial load capacity reaches 35745 lbf, making it suitable for heavy-duty applications.

The double-row spherical roller design ensures smooth operation even under misalignment conditions.
With a maximum speed of 7500 rpm, it delivers reliable performance in high-speed scenarios.

21311 CC W33 Bearing operates efficiently in temperatures ranging from -30° to 200°C.
Its steel cage maintains roller alignment, reducing friction and extending service life.

The lubrication groove and hole design in 21311 CC W33 Bearing ensure consistent lubrication.
This feature minimises maintenance needs while enhancing operational reliability.

Application

Industrial Uses of 21311 CC W33 Bearing
21311 CC W33 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 spherical roller construction also helps accommodate misalignment, reducing wear in demanding conditions.

In automotive applications, 21311 CC W33 Bearing supports drivetrain components, particularly in commercial vehicles where high load capacity is essential. Its chrome steel rollers ensure durability even under continuous stress and varying temperatures.

For industrial fans and blowers, 21311 CC W33 Bearing’s open design simplifies lubrication, maintaining smooth operation over long periods. The W33 lubrication groove further enhances performance in high-speed scenarios.

Where Is 21311 CC W33 Bearing Used?
You’ll often find 21311 CC W33 Bearing in conveyor systems, where its ability to handle heavy loads and misalignment keeps production lines running smoothly. The steel cage adds extra strength, making it reliable for continuous operation.

In construction equipment like cranes, 21311 CC W33 Bearing’s combined load capacity ensures stability under dynamic forces. Its wide temperature range also makes it suitable for outdoor use in varying climates.

Built for Heavy-Duty Use: 21311 CC W33 Bearing
21311 CC W33 Bearing excels in mining equipment, where its robust construction withstands harsh environments. The spherical rollers distribute loads evenly, extending service life even under extreme conditions.

For paper mill machinery, 21311 CC W33 Bearing’s high-speed capability and lubrication features reduce downtime. Its metric sizing ensures easy integration with European and Asian manufacturing standards.

Light-Duty vs Heavy-Duty: Best Uses for 21311 CC W33 Bearing
In light-duty applications like small pumps, 21311 CC W33 Bearing offers reliable performance with minimal maintenance. Its precision engineering ensures quiet operation, ideal for sensitive environments.

For heavy-duty uses like steel rolling mills, 21311 CC W33 Bearing’s dynamic load rating handles intense pressure effortlessly. The chrome steel materials resist deformation, even under prolonged stress.

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