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Super Precision Angular Contact Ball Bearings S7211 ACD/P4ADBC

Super Precision Angular Contact Ball Bearings S7211 ACD/P4ADBC

The S7211 ACD/P4ADBC is a super precision angular contact ball bearing with a 55mm bore and 100mm outer diameter, crafted from durable chrome steel. It handles radial loads up to 19170 lbf and reaches speeds of 34000 RPM, making it suitable for high-performance applications.

Its sealed design and phenolic cage ensure smooth operation with minimal maintenance, while the 25° contact angle provides excellent load distribution. The bearing comes as a matched set of two, preloaded for moderate stiffness.

Ideal for precision machinery like spindles or CNC equipment, it operates reliably between -30°C and 110°C. Weighing 1.25kg, it balances strength and precision for demanding tasks. Compliant with P4A tolerance standards, it’s interchangeable with SKF models for easy replacement.

The grease lubrication simplifies upkeep, and its sealed construction keeps contaminants out. A robust choice for engineers needing accuracy and durability in angular contact scenarios.

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Product Parameters

  • Part Number S7211 ACD/P4ADBC
  • 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 42 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 Sealed
  • Matched Arrangement 2 bearings <> DB
  • Number Of Bearings In Matched Set 2
  • Universal Matching Bearing No
  • Preload Moderate / Class C
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 19170 lbf
  • Static Radial Load 18338 lbf
  • Lubrication Grease
  • Temperature Range - 30°C to 110 °C
  • Max Speed 34000 rpm
  • Weight 1.25 kg
Super Precision Angular Contact Ball Bearings S7211 ACD/P4ADBC dimension drawing
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Features

Why Choose S7211 ACD/P4ADBC Bearing for Precision Tasks?

S7211 ACD/P4ADBC Bearing features a 25° contact angle, ideal for handling combined radial and axial loads with high precision.
Its chrome steel rings and balls ensure durability, while the phenolic cage reduces friction for smoother operation.

With a dynamic radial load capacity of 19170 lbf, S7211 ACD/P4ADBC Bearing performs reliably in demanding applications.
The matched arrangement of two bearings (DB) enhances stability and load distribution.

S7211 ACD/P4ADBC Bearing operates efficiently at speeds up to 34,000 rpm, making it suitable for high-speed machinery.
Its sealed design and grease lubrication minimise maintenance needs, ensuring long service life.

Application

Industrial Uses of S7211 ACD/P4ADBC Bearing
S7211 ACD/P4ADBC 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.

In automotive applications, S7211 ACD/P4ADBC Bearing supports high-speed components like turbochargers and electric motor shafts. Its moderate preload and matched arrangement provide stability under varying loads.

For robotics, S7211 ACD/P4ADBC Bearing’s phenolic cage and grease lubrication reduce friction in articulated joints. This makes it suitable for repetitive, high-accuracy movements in automated systems.

Medical imaging devices benefit from S7211 ACD/P4ADBC Bearing’s P4A tolerance class, ensuring smooth operation in sensitive equipment. The chrome steel construction also offers long-term reliability in sterile environments.

In aerospace systems, S7211 ACD/P4ADBC Bearing handles both radial and axial loads in avionics and control mechanisms. Its temperature range and grease lubrication make it adaptable to various flight conditions.

Q&A

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