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Super Precision Angular Contact Ball Bearings 7028 ACD/P4ATBTA

Super Precision Angular Contact Ball Bearings 7028 ACD/P4ATBTA

The 7028 ACD/P4ATBTA is a super precision angular contact ball bearing with a 140mm bore and 210mm outer diameter, crafted from durable chrome steel. It handles radial loads up to 70200 lbf and operates smoothly at speeds up to 6300 RPM.

Its 25° contact angle and matched arrangement of three bearings (TBT) provide excellent stability for angular loads. The phenolic cage ensures quiet operation and long service life.

Preloaded for extra light performance, this bearing is ideal for high-precision applications like machine tool spindles or aerospace systems. It works in temperatures from -30°C to 110°C.

Weighing 10.3kg, it’s a robust choice for demanding environments. Compliant with P4A tolerance standards, it’s interchangeable with SKF bearings for easy replacements.

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Product Parameters

  • Part Number 7028 ACD/P4ATBTA
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 140 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 210 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 99 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 22.225 mm
  • Ball Qty 22
  • 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 Extra light / Class A
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 70200 lbf
  • Static Radial Load 106875 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 6300 rpm
  • Weight 10.3 kg
Super Precision Angular Contact Ball Bearings 7028 ACD/P4ATBTA dimension drawing
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Features

Performance Features of 7028 ACD/P4ATBTA Bearing

7028 ACD/P4ATBTA Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and balls ensure durability under high radial loads, up to 70200 lbf dynamically.

The phenolic cage maintains ball alignment, reducing friction and enhancing smooth operation.
With a maximum speed of 6,300 rpm, it balances performance and longevity in precision settings.

7028 ACD/P4ATBTA Bearing operates efficiently in temperatures from -30°C to 110°C.
Its extra light preload (Class A) ensures minimal resistance, ideal for high-precision machinery.

The matched arrangement of three bearings (TBT) provides stability for demanding applications.
Open seal design allows easy lubrication, maintaining optimal performance over time.

Application

Key Fields for 7028 ACD/P4ATBTA Bearing
In high-precision machine tools, 7028 ACD/P4ATBTA Bearing excels due to its angular contact design, ensuring accurate spindle rotation. The phenolic cage reduces friction, making it ideal for long operational cycles.

Where Is 7028 ACD/P4ATBTA Bearing Used?
You’ll often find 7028 ACD/P4ATBTA Bearing in aerospace applications, where its extra-light preload handles radial and axial loads efficiently. Its P4A tolerance class guarantees consistent performance in demanding conditions.

Built for Heavy-Duty Use: 7028 ACD/P4ATBTA Bearing
7028 ACD/P4ATBTA Bearing is a go-to for industrial pumps, thanks to its chrome steel construction and robust dynamic load capacity. The matched arrangement of three bearings ensures stability in high-speed operations.

Automotive vs Aerospace: Applications of 7028 ACD/P4ATBTA Bearing
In automotive systems, 7028 ACD/P4ATBTA Bearing supports gearboxes with its high load capacity. For aerospace, its precision and temperature resilience make it suitable for flight control mechanisms.

Practical Applications of 7028 ACD/P4ATBTA Bearing
7028 ACD/P4ATBTA Bearing is commonly used in robotics, where its angular contact design allows for smooth, precise movements. The lubricated setup ensures minimal maintenance in automated environments.

Q&A

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