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Super Precision Angular Contact Ball Bearings S7004 ACE/HCP4A

Super Precision Angular Contact Ball Bearings S7004 ACE/HCP4A

The S7004 ACE/HCP4A is a super precision angular contact ball bearing with a 20mm bore and 42mm outer diameter, crafted from high-quality chrome steel. Its compact 12mm width makes it suitable for tight spaces, while the ceramic balls enhance performance.

With a 25° contact angle, it handles both radial and axial loads efficiently, supporting up to 1609 lbf dynamically. It spins smoothly at speeds up to 58,000 RPM, thanks to its phenolic cage and built-in lubrication.

The sealed design keeps contaminants out, ensuring long-lasting operation in temperatures from -30°C to 110°C. Its P4 tolerance class (ABEC-7) guarantees exceptional precision for demanding applications.

Ideal for high-speed machinery like spindles or robotics, this bearing is interchangeable with SKF models. Weighing just 0.059kg, it’s lightweight yet robust for precision tasks.

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Product Parameters

  • Part Number S7004 ACE/HCP4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 20 mm
  • Bore Dia Tolerance -0.005mm to 0
  • Outer Dia 42 mm
  • Outer Dia Tolerance -0.006mm to 0
  • Width 12 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 6.35 mm
  • Ball Qty 12
  • Contact Angle 25°
  • Tolerance Class P4 (ABEC-7)
  • System of Measurement Metric
  • Seal Type Sealed
  • Matched Arrangement Available
  • Preload Available
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Ceramic
  • Cage Material Phenolic
  • Dynamic Radial Load 1609 lbf
  • Static Radial Load 731 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 58000 rpm
  • Weight 0.059 kg
  • Price（$） 19.368
Super Precision Angular Contact Ball Bearings S7004 ACE/HCP4A dimension drawing
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Features

Why Choose S7004 ACE/HCP4A Bearing for Precision Tasks?

S7004 ACE/HCP4A Bearing features a 25° contact angle, ideal for handling combined radial and axial loads with precision.
Its ceramic balls and chrome steel rings reduce friction, ensuring smooth operation even at high speeds.

The phenolic cage enhances durability and maintains ball alignment for consistent performance.
With a maximum speed of 58,000 rpm, it excels in high-speed applications while maintaining accuracy.

Sealed design protects against contaminants, extending the bearing’s service life.
Its P4 tolerance class guarantees tight precision, making it suitable for demanding machinery.

Application

Practical Applications of S7004 ACE/HCP4A Bearing
S7004 ACE/HCP4A Bearing is commonly used in high-speed machine tools, where its precision and angular contact design ensure accurate spindle rotation. The ceramic balls reduce friction, making it ideal for applications requiring smooth, quiet operation.

In robotics, S7004 ACE/HCP4A Bearing supports articulated arms, providing stability and durability in repetitive movements. Its sealed design helps keep contaminants out, extending service life in demanding environments.

For aerospace components, S7004 ACE/HCP4A Bearing’s P4 tolerance class ensures reliability in navigation systems and actuators. The phenolic cage offers lightweight strength, crucial for weight-sensitive applications.

Where Is S7004 ACE/HCP4A Bearing Used?
You’ll often find S7004 ACE/HCP4A Bearing in dental drills, where its high-speed capability and precision are essential. The lubricated design ensures consistent performance during prolonged use.

In 3D printers, S7004 ACE/HCP4A Bearing helps maintain print head accuracy, thanks to its low friction and tight tolerances. The chrome steel rings add durability for continuous operation.

Built for Heavy-Duty Use: S7004 ACE/HCP4A Bearing
S7004 ACE/HCP4A Bearing excels in industrial pumps, handling both radial and axial loads with ease. Its 25° contact angle distributes forces evenly, reducing wear over time.

For electric vehicle motors, S7004 ACE/HCP4A Bearing’s ceramic balls minimise energy loss, improving efficiency. The sealed construction also protects against dust and moisture in challenging conditions.

Automotive vs Aerospace: Applications of S7004 ACE/HCP4A Bearing
In automotive transmissions, S7004 ACE/HCP4A Bearing supports smooth gear shifts with its high-speed capability. The matched arrangement option ensures consistent performance under varying loads.

For aircraft control systems, S7004 ACE/HCP4A Bearing’s lightweight design and precision are critical. The temperature range suits both ground operations and high-altitude conditions.

Q&A

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