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Super Precision Angular Contact Ball Bearings S7021 CD/P4AQBCB

Super Precision Angular Contact Ball Bearings S7021 CD/P4AQBCB

The S7021 CD/P4AQBCB is a super precision angular contact ball bearing with a 105mm bore and 160mm outer diameter, crafted from high-quality chrome steel. It handles both radial and angular loads, with a dynamic radial load capacity of 57375 lbf.

Its sealed design keeps lubrication in and contaminants out, ensuring smooth operation at speeds up to 10000 RPM. The phenolic cage adds durability while maintaining lightweight performance.

This bearing comes in a matched set of four, preloaded for light use, making it ideal for high-precision applications like machine tool spindles or robotics. It operates reliably in temperatures from -30°C to 110°C.

Weighing 6.43kg, it’s robust yet manageable for its size. Compliant with P4A tolerance standards, it’s interchangeable with SKF bearings for easy replacements. Perfect for setups requiring tight tolerances and long service life.

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Product Parameters

  • Part Number S7021 CD/P4AQBCB
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 105 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 160 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 104 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 17.462 mm
  • Ball Qty 21
  • Contact Angle 15°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Sealed
  • Matched Arrangement 4 bearings <<>> QBC
  • Number Of Bearings In Matched Set 4
  • Universal Matching Bearing No
  • Preload Light / Class B
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 57375 lbf
  • Static Radial Load 87750 lbf
  • Lubrication Grease
  • Temperature Range - 30°C to 110 °C
  • Max Speed 10000 rpm
  • Weight 6.43 kg
Super Precision Angular Contact Ball Bearings S7021 CD/P4AQBCB dimension drawing
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Features

How Does S7021 CD/P4AQBCB Bearing Ensure Precision in High-Speed Applications?

S7021 CD/P4AQBCB Bearing features a 15° contact angle, optimised for angular contact loads and high-speed performance.
The sealed design protects against contaminants, ensuring smooth operation in demanding environments.

With a dynamic radial load capacity of 57,375 lbf, S7021 CD/P4AQBCB Bearing handles heavy loads efficiently.
Its phenolic cage maintains ball alignment, reducing friction and extending service life.

The P4A tolerance class ensures high precision, making S7021 CD/P4AQBCB Bearing suitable for critical applications.
It operates smoothly at speeds up to 10,000 rpm, balancing performance and durability.

S7021 CD/P4AQBCB Bearing’s chrome steel construction provides excellent wear resistance and reliability.
The matched arrangement of four bearings enhances stability and load distribution.

Application

Industrial Uses of S7021 CD/P4AQBCB Bearing
S7021 CD/P4AQBCB Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The sealed construction helps maintain performance in environments with dust or debris.

What Makes S7021 CD/P4AQBCB Bearing a Preferred Choice?
In robotics, S7021 CD/P4AQBCB Bearing provides smooth motion control for articulated arms, thanks to its light preload and phenolic cage. The matched arrangement of four bearings enhances stability in dynamic applications.

Automotive vs Aerospace: Applications of S7021 CD/P4AQBCB Bearing
For automotive gearboxes, S7021 CD/P4AQBCB Bearing handles high radial loads while maintaining precision. In aerospace, its P4A tolerance class meets the stringent requirements for navigation systems.

Perfect Fit for Automation: S7021 CD/P4AQBCB Bearing
S7021 CD/P4AQBCB Bearing works well in automated production lines, where its grease lubrication reduces maintenance needs. The chrome steel construction ensures long service life even under continuous operation.

Where Is S7021 CD/P4AQBCB Bearing Used?
Medical imaging devices benefit from S7021 CD/P4AQBCB Bearing’s low noise and vibration. Its temperature range also makes it suitable for lab equipment requiring consistent performance.

Q&A

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