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21308 CC Double Row Spherical Roller Bearing

21308 CC Double Row Spherical Roller Bearing

The 21308 CC is a double-row spherical roller bearing with a 40mm bore and 90mm outer diameter, crafted from robust chrome steel. It handles combined loads up to 24055 lbf and operates smoothly at speeds up to 9500 RPM.

Its open design allows for easy lubrication, while the steel cage ensures durability under heavy use. 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 applications like industrial gearboxes or heavy machinery where combined loads are common.

Weighing 0.74kg, it offers a sturdy build for its size. Compliant with RoHS and REACH standards for safe and eco-friendly use.

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Product Parameters

  • Part Number 21308 CC
  • Brand TFL
  • Interchangeable SKF
  • Size 40 x 90 x 23 mm
  • Bore Dia 40 mm
  • Bore Dia Tolerance -0.012mm to 0
  • Outer Dia 90 mm
  • Outer Dia Tolerance -0.015mm to 0
  • Width 23 mm
  • Width Tolerance -0.06mm to 0
  • Shoulder Dia Of Inner Ring 60 mm
  • Shoulder/Recess Dia Of Outer Ring 79.8 mm
  • Width Of Lubrication Groove 5.5 mm
  • Diameter Of Lubrication Hole 3 mm
  • Chamfer Dimension min.1.5 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 24055 lbf
  • Static Radial Load 24279 lbf
  • Max Speed 9500 rpm
  • Lubrication Required
  • Temperature Range -30° to 200 °C
  • Radial Clearance CN
  • RoHs Compliant
  • REACH Compliant
  • Weight 0.74 kg

Features

Performance Features of 21308 CC Bearing

21308 CC Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 24055 lbf, ensuring reliable performance in heavy-duty applications.

The double-row spherical roller design allows for slight misalignment, reducing stress on the bearing.
This feature enhances durability and extends the service life even under challenging conditions.

With a maximum speed of 9500 rpm, 21308 CC Bearing balances high performance and efficiency.
The steel cage maintains roller alignment, ensuring smooth operation and reduced wear.

21308 CC Bearing operates in temperatures from -30° to 200°C, suitable for varied environments.
Its open design simplifies lubrication, keeping maintenance straightforward and cost-effective.

Application

Industrial Uses of 21308 CC Bearing
The 21308 CC Bearing is commonly used in heavy machinery like crushers and vibrating screens, where its double-row design handles both radial and axial loads efficiently.
Its spherical roller construction allows for slight misalignment, making it suitable for rugged industrial environments.

What Makes 21308 CC Bearing a Preferred Choice?
In conveyor systems, 21308 CC Bearing offers reliable performance due to its high dynamic radial load capacity.
The chrome steel rollers and steel cage ensure durability even in high-temperature conditions up to 200°C.

Built for Heavy-Duty Use: 21308 CC Bearing
For mining equipment, 21308 CC Bearing provides excellent shock resistance and long service life under extreme loads.
The open design simplifies lubrication, which is essential for maintaining performance in dusty or harsh conditions.

Automotive vs Aerospace: Applications of 21308 CC Bearing
In automotive applications, 21308 CC Bearing supports heavy axles and gearboxes, where combined loads are common.
Its metric sizing and high-speed capability (up to 9500 rpm) also make it adaptable for certain aerospace components.

Key Fields for 21308 CC Bearing
The 21308 CC Bearing is ideal for wind turbines, where its ability to handle misalignment and heavy loads is crucial.
The CN radial clearance ensures smooth operation, reducing maintenance needs in remote installations.

Q&A

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