lianxidianhua +86 15806631151 send-sms info@sdtfbearing.com
/
/
21311 EK W33 Double Row Spherical Roller Bearing
21311 EK W33 Double Row Spherical Roller Bearing

21311 EK W33 Double Row Spherical Roller Bearing

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

Its spherical roller design allows for slight misalignment, while the steel cage ensures durability. The open construction and lubrication groove make maintenance straightforward.

This bearing is suitable for temperatures ranging from -30°C to 200°C. It’s interchangeable with SKF models, offering a reliable replacement option.

Ideal for heavy-duty applications like industrial gearboxes or mining equipment, where robust performance is essential. Weighing 1.7kg, it balances strength and practicality. Compliant with RoHS and REACH standards.

Get A Free Quote

"*" indicates required fields

This field is for validation purposes and should be left unchanged.

Product Parameters

  • Part Number 21311 EK W33
  • Brand TFL
  • Interchangeable SKF
  • Size 55 x 120 x 29 mm
  • Bore Dia 55 mm
  • Bore Dia Tolerance +0.03mm 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 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 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$) 45.36

Features

Performance Features of 21311 EK W33 Bearing

21311 EK W33 Bearing is built with chrome steel rings and rollers, offering high 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 various industrial settings.

21311 EK W33 Bearing features a steel cage that maintains roller alignment, reducing wear.
The lubrication groove and holes facilitate easy maintenance, extending the bearing’s service life.

Designed for temperatures from -30° to 200°C, it performs well in demanding environments.
Its tapered bore allows for secure mounting, ensuring stability during operation.

Application

Industrial Uses of 21311 EK W33 Bearing
21311 EK W33 Bearing is commonly used in heavy machinery like crushers and vibrating screens, where its double-row spherical design handles misalignment and heavy radial loads. The chrome steel construction ensures durability in harsh industrial environments.

Where Is 21311 EK W33 Bearing Used?
You’ll find 21311 EK W33 Bearing in mining equipment, where its ability to withstand high loads and vibrations keeps operations running smoothly. The tapered bore design also makes installation and maintenance straightforward.

Built for Heavy-Duty Use: 21311 EK W33 Bearing
21311 EK W33 Bearing excels in paper mills and steel plants, where its robust construction handles extreme temperatures and continuous operation. The lubrication groove ensures consistent performance even under demanding conditions.

Automotive vs Aerospace: Applications of 21311 EK W33 Bearing
In automotive applications, 21311 EK W33 Bearing supports gearboxes and drivetrains, while in aerospace, its precision and reliability are valued in auxiliary systems. The metric sizing fits seamlessly into both industries.

Essential Roles of 21311 EK W33 Bearing
21311 EK W33 Bearing plays a key role in wind turbines, where its spherical rollers accommodate shaft deflections and heavy loads. The steel cage adds extra strength, making it a reliable choice for renewable energy applications.

Q&A

SEND INQUIRY

"*" indicates required fields

This field is for validation purposes and should be left unchanged.