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Super Precision Angular Contact Ball Bearings S7021 ACD/P4ATBTB

Super Precision Angular Contact Ball Bearings S7021 ACD/P4ATBTB

The S7021 ACD/P4ATBTB is a super precision angular contact ball bearing with a 105mm bore and 160mm outer diameter, crafted from high-quality chrome steel. It features a 25° contact angle and comes sealed for protection, with three bearings matched in a TBT arrangement.

This bearing handles radial loads up to 44775 lbf and operates smoothly at speeds up to 10000 RPM. Its phenolic cage ensures durability, while the light preload (Class B) enhances precision and reduces vibration.

Ideal for high-precision applications like machine tool spindles or robotics, where accuracy is key. The sealed design keeps lubrication in and contaminants out, extending service life.

Weighing 4.82kg, it’s robust yet manageable for its size. Compliant with P4A tolerance standards, it’s interchangeable with SKF bearings for easy replacement. Suitable for temperatures from -30°C to 110°C.

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Product Parameters

  • Part Number S7021 ACD/P4ATBTB
  • 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 78 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 17.462 mm
  • Ball Qty 21
  • Contact Angle 25°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Sealed
  • 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 44775 lbf
  • Static Radial Load 61875 lbf
  • Lubrication Grease
  • Temperature Range - 30°C to 110 °C
  • Max Speed 10000 rpm
  • Weight 4.82 kg
Super Precision Angular Contact Ball Bearings S7021 ACD/P4ATBTB dimension drawing
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Features

Performance Features of S7021 ACD/P4ATBTB Bearing

S7021 ACD/P4ATBTB Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and balls provide strong resistance to both dynamic and static radial loads.

The phenolic cage ensures smooth operation at high speeds, up to 10,000 rpm.
With a sealed design and grease lubrication, it requires minimal maintenance.

S7021 ACD/P4ATBTB Bearing operates efficiently in temperatures from -30°C to 110°C.
Its precision P4A tolerance class guarantees reliable performance in demanding conditions.

The matched arrangement of three bearings enhances stability and load capacity.
This makes it suitable for applications requiring high precision and durability.

Application

Industrial Uses of S7021 ACD/P4ATBTB Bearing
S7021 ACD/P4ATBTB 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.

Where Is S7021 ACD/P4ATBTB Bearing Used?
In robotics, S7021 ACD/P4ATBTB Bearing supports articulated arms, providing smooth movement and load handling. Its phenolic cage reduces friction, making it suitable for repetitive motions.

Built for Heavy-Duty Use: S7021 ACD/P4ATBTB Bearing
S7021 ACD/P4ATBTB Bearing excels in industrial gearboxes, handling both radial and axial loads with ease. The light preload ensures minimal vibration, enhancing operational stability.

Automotive vs Aerospace: Applications of S7021 ACD/P4ATBTB Bearing
In automotive systems, S7021 ACD/P4ATBTB Bearing is found in high-performance transmissions, offering durability under stress. For aerospace, its precision is ideal for control mechanisms requiring reliability.

Practical Applications of S7021 ACD/P4ATBTB Bearing
S7021 ACD/P4ATBTB Bearing is a go-to choice for medical imaging devices, where smooth rotation is critical. The chrome steel construction ensures long-term performance in sterile environments.

Q&A

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