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Super Precision Angular Contact Ball Bearings S7021 ACDGA/P4A

Super Precision Angular Contact Ball Bearings S7021 ACDGA/P4A

The S7021 ACDGA/P4A 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 an extra light preload for smooth operation.

This bearing handles radial loads up to 20340 lbf and reaches speeds of 10000 RPM, making it suitable for high-performance applications. Its phenolic cage ensures durability and reduces friction.

Designed for angular contact loads, it works well in temperatures from -30°C to 110°C. The P4A tolerance class guarantees precision, while the grease lubrication simplifies maintenance.

Ideal for machine tools or spindle applications, this bearing is interchangeable with SKF models. Weighing 1.61kg, it’s robust yet manageable for its size. It can be used in back-to-back, face-to-face, or tandem arrangements for versatile setups.

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Product Parameters

  • Part Number S7021 ACDGA/P4A
  • 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 26 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 No
  • Number Of Bearings In Matched Set 3
  • Universal Matching Bearing Yes, back-to-back (<>), face-to-face (><) or tandem (>>)
  • Preload Extra light / Class A
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 20340 lbf
  • Static Radial Load 20925 lbf
  • Lubrication Grease
  • Temperature Range - 30°C to 110 °C
  • Max Speed 10000 rpm
  • Weight 1.61 kg
Super Precision Angular Contact Ball Bearings S7021 ACDGA/P4A dimension drawing
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Features

Performance Features of S7021 ACDGA/P4A Bearing

S7021 ACDGA/P4A Bearing is crafted with chrome steel rings and balls, ensuring high precision and durability.

Its 25° contact angle provides excellent load distribution, making it suitable for angular contact applications.

The phenolic cage maintains ball alignment, reducing friction and enhancing performance.

With a dynamic radial load capacity of 20340 lbf, it handles demanding conditions with ease.

How Is S7021 ACDGA/P4A Bearing Engineered for Reliability?

S7021 ACDGA/P4A Bearing features a sealed design, protecting against contaminants and extending service life.

The extra light preload ensures smooth operation, ideal for high-speed applications up to 10,000 rpm.

Its P4A tolerance class guarantees precision, meeting stringent performance requirements.

The universal matching capability allows flexible arrangement options for various setups.

Designed for Durability: S7021 ACDGA/P4A Bearing

S7021 ACDGA/P4A Bearing’s chrome steel construction resists wear, maintaining performance over time.

The grease lubrication ensures consistent operation, even in temperatures from -30°C to 110°C.

With 21 balls of 17.462 mm diameter, it balances load capacity and speed efficiency.

Its 26 mm width and precise tolerances ensure easy integration into existing systems.

Steel vs Ceramic Bearings: Strengths of S7021 ACDGA/P4A Bearing

S7021 ACDGA/P4A Bearing’s chrome steel components offer a robust solution for high-load applications.

The material choice ensures reliability and cost-effectiveness compared to ceramic alternatives.

Its phenolic cage provides stability, reducing vibration and noise during operation.

The sealed design further enhances its suitability for harsh environments.

Application

Common Applications of S7021 ACDGA/P4A Bearing
S7021 ACDGA/P4A Bearing is widely 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 robotics, S7021 ACDGA/P4A Bearing supports articulated arms, providing smooth movement under angular loads. Its phenolic cage reduces friction, making it ideal for repetitive motions.

For aerospace applications, S7021 ACDGA/P4A Bearing’s extra light preload enhances stability in flight control systems. The P4A tolerance class guarantees consistent performance under demanding conditions.

Where Is S7021 ACDGA/P4A Bearing Used?
S7021 ACDGA/P4A Bearing is commonly found in CNC machining centres, where precision and speed are critical. Its grease lubrication ensures long service life even at high RPMs.

In medical imaging devices, S7021 ACDGA/P4A Bearing’s chrome steel construction provides reliable operation. The 25° contact angle helps manage both radial and axial loads effectively.

Built for Heavy-Duty Use: S7021 ACDGA/P4A Bearing
S7021 ACDGA/P4A Bearing excels in industrial gearboxes, handling combined loads with ease. The metric dimensions make it compatible with a range of European machinery.

For automation systems, S7021 ACDGA/P4A Bearing’s universal matching allows flexible configurations. Its temperature range suits both indoor and outdoor applications.

Automotive vs Aerospace: Applications of S7021 ACDGA/P4A Bearing
In automotive testing equipment, S7021 ACDGA/P4A Bearing ensures precise measurements under dynamic conditions. The sealed design protects against contaminants.

For aerospace actuators, S7021 ACDGA/P4A Bearing’s high-speed capability is crucial. The phenolic cage minimises weight while maintaining strength.

Q&A

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