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Super Precision Angular Contact Ball Bearings 7011 ACE/HCP4AH1DBA

Super Precision Angular Contact Ball Bearings 7011 ACE/HCP4AH1DBA

The 7011 ACE/HCP4AH1DBA is a super precision angular contact ball bearing with a 55mm bore and 90mm outer diameter, crafted from chrome steel for durability. It features a 25° contact angle and comes in a matched pair (DB arrangement) for balanced performance.

This bearing handles radial loads up to 5850 lbf and spins smoothly at high speeds, reaching up to 34,000 RPM. Its ceramic balls and phenolic cage reduce friction, ensuring efficient operation.

The open design allows easy lubrication, while the extra-light preload (Class A) ensures precise movement. Ideal for applications like machine tools or high-speed spindles where accuracy is key.

Weighing 0.72kg, it’s robust yet manageable. Compliant with P4A tolerance standards, it’s a reliable choice for demanding environments. Works well in temperatures from -30°C to 110°C.

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Product Parameters

  • Part Number 7011 ACE/HCP4AH1DBA
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 55 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 90 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 36 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 7.938 mm
  • Ball Qty 24
  • Contact Angle 25°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement 2 bearings <> DB
  • Number Of Bearings In Matched Set 2
  • Universal Matching Bearing No
  • Preload Extra light / Class A
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Ceramic
  • Cage Material Phenolic
  • Dynamic Radial Load 5850 lbf
  • Static Radial Load 5220 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 34000 rpm
  • Weight 0.72 kg
Super Precision Angular Contact Ball Bearings 7011 ACE/HCP4AH1DBA dimension drawing
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Features

Performance Features of 7011 ACE/HCP4AH1DBA Bearing

7011 ACE/HCP4AH1DBA Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.

The chrome steel rings and ceramic balls reduce friction, enhancing speed capabilities up to 34,000 rpm.

Its phenolic cage ensures smooth operation, even under high dynamic radial loads of 5850 lbf.

With a matched arrangement of two bearings, it provides extra light preload for precision tasks.

Application

Industrial Uses of 7011 ACE/HCP4AH1DBA Bearing
This bearing is commonly used in high-speed machine tools, where its ceramic balls and phenolic cage reduce friction and heat buildup.
The extra light preload ensures smooth operation in precision grinding applications.

Where Is 7011 ACE/HCP4AH1DBA Bearing Used?
You’ll find it in automotive turbochargers, where the 25° contact angle handles combined radial and axial loads efficiently.
Its P4A tolerance class makes it suitable for applications demanding tight rotational accuracy.

Built for Heavy-Duty Use: 7011 ACE/HCP4AH1DBA Bearing
The matched pair design (DB arrangement) provides excellent rigidity for spindle applications in milling machines.
Chrome steel rings and ceramic balls offer a good balance between durability and high-speed capability.

Automotive vs Aerospace: Applications of 7011 ACE/HCP4AH1DBA Bearing
In automotive systems, it’s used in high-performance gearboxes that require reliable operation at 34,000 rpm.
For aerospace applications, the temperature range (-30°C to 110°C) makes it suitable for various aircraft components.

Practical Applications of 7011 ACE/HCP4AH1DBA Bearing
Medical imaging devices benefit from its smooth rotation and minimal vibration characteristics.
The lubricated design ensures consistent performance in CT scanner gantries and other precision medical equipment.

Q&A

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