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Super Precision Angular Contact Ball Bearings 7211 ACD/P4ATBTB

Super Precision Angular Contact Ball Bearings 7211 ACD/P4ATBTB

The 7211 ACD/P4ATBTB is a super precision angular contact ball bearing with a 55mm bore and 100mm outer diameter, crafted from high-quality chrome steel. It handles radial loads up to 25650 lbf and operates smoothly at speeds up to 34000 RPM.

With a 25° contact angle and phenolic cage, it offers excellent stability and low friction. The matched set of three bearings (arranged TBT) ensures balanced performance for demanding applications.

Its open design allows for easy lubrication, while the P4A tolerance class guarantees precise operation. Ideal for high-speed machinery like spindles or CNC equipment where accuracy is crucial.

Weighing 1.84kg, this bearing works in temperatures from -30°C to 110°C. It’s interchangeable with SKF models, making it a reliable choice for replacements or upgrades.

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Product Parameters

  • Part Number 7211 ACD/P4ATBTB
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 55 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 100 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 63 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 14.288 mm
  • Ball Qty 15
  • Contact Angle 25°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement 3 bearings <>> TBT
  • Number Of Bearings In Matched Set 3
  • 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 25650 lbf
  • Static Radial Load 27450 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 34000 rpm
  • Weight 1.84 kg
Super Precision Angular Contact Ball Bearings 7211 ACD/P4ATBTB dimension drawing
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Features

Performance Features of 7211 ACD/P4ATBTB Bearing

7211 ACD/P4ATBTB Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and balls enhance durability, supporting dynamic radial loads up to 25650 lbf.

The phenolic cage ensures smooth operation at high speeds, reaching up to 34,000 rpm.
With a matched arrangement of three bearings, it provides stability and precision in demanding setups.

Operating between -30°C to 110°C, 7211 ACD/P4ATBTB Bearing performs reliably in varied temperature conditions.
Its P4A tolerance class guarantees high precision, making it suitable for critical applications.

The open seal design allows for easy lubrication, maintaining optimal performance over time.
Weighing 1.84 kg, it balances strength and efficiency without compromising on quality.

Application

Industrial Uses of 7211 ACD/P4ATBTB Bearing
This bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The matched set arrangement (TBT) provides stability in demanding applications like CNC machining.

Where Is 7211 ACD/P4ATBTB Bearing Used?
You’ll find it in automotive transmissions, where the 25° contact angle handles combined radial and axial loads efficiently. Its phenolic cage offers quiet operation, ideal for electric vehicle drivetrains.

Built for Heavy-Duty Use: 7211 ACD/P4ATBTB Bearing
The chrome steel construction makes it suitable for industrial pumps operating at high speeds. With a max speed of 34,000 rpm, it balances performance and durability in continuous operations.

Medical vs Industrial: Where 7211 ACD/P4ATBTB Bearing Excels
In medical imaging devices, its P4A tolerance class ensures precision movement for accurate diagnostics. Meanwhile, in robotics, the light preload reduces friction for smoother arm movements.

Automotive vs Aerospace: Applications of 7211 ACD/P4ATBTB Bearing
Car wheel hubs benefit from its dynamic load capacity, while aircraft systems rely on its temperature resilience (-30°C to 110°C). The lubricated design minimises maintenance in both environments.

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