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Super Precision Angular Contact Ball Bearings S71909 ACE/HCP4ADBA

Super Precision Angular Contact Ball Bearings S71909 ACE/HCP4ADBA

The S71909 ACE/HCP4ADBA is a super precision angular contact ball bearing, measuring 45mm by 68mm by 24mm, crafted from durable chrome steel with ceramic balls. It handles radial loads up to 3578 lbf and reaches speeds of 41,000 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 preloaded for extra light performance, ideal for precision machinery.

This set includes two matched bearings (DB arrangement) for balanced performance in demanding setups. It works reliably in temperatures from -30°C to 110°C and is interchangeable with SKF models. Perfect for spindle drives or high-speed robotics where accuracy is key.

Weighing just 0.23kg, it’s lightweight yet robust, with a P4A tolerance class for exceptional precision. The grease lubrication ensures long service life without frequent reapplication.

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Product Parameters

  • Part Number S71909 ACE/HCP4ADBA
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 45 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 68 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 24 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 6.35 mm
  • Ball Qty 21
  • 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 Extra light / Class A
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Ceramic
  • Cage Material Phenolic
  • Dynamic Radial Load 3578 lbf
  • Static Radial Load 2902 lbf
  • Lubrication Grease
  • Temperature Range - 30°C to 110 °C
  • Max Speed 41000 rpm
  • Weight 0.23 kg
Super Precision Angular Contact Ball Bearings S71909 ACE/HCP4ADBA dimension drawing
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Features

Performance Features of S71909 ACE/HCP4ADBA Bearing

S71909 ACE/HCP4ADBA Bearing features a 25° contact angle, optimised for angular contact loads.

Its chrome steel rings and ceramic balls provide a balance of strength and smooth operation.

The sealed design and grease lubrication ensure minimal maintenance and reliable performance.

With a maximum speed of 41,000 rpm, it is suited for high-speed applications.

How Is S71909 ACE/HCP4ADBA Bearing Engineered for Reliability?

S71909 ACE/HCP4ADBA Bearing uses phenolic cages to maintain ball alignment under high speeds.

The extra light preload (Class A) reduces friction, enhancing precision and longevity.

Its dynamic radial load capacity of 3578 lbf ensures durability in demanding conditions.

The P4A tolerance class guarantees consistent performance in precision machinery.

Designed for Durability: S71909 ACE/HCP4ADBA Bearing

S71909 ACE/HCP4ADBA Bearing operates efficiently within a temperature range of -30°C to 110°C.

The matched arrangement of two bearings (DB) provides stability for angular contact loads.

Ceramic balls reduce wear and noise, making it ideal for precision applications.

Its compact size (45 mm×68 mm×24 mm) allows for easy integration into tight spaces.

Steel vs Ceramic Bearings: Strengths of S71909 ACE/HCP4ADBA Bearing

S71909 ACE/HCP4ADBA Bearing combines chrome steel rings with ceramic balls for enhanced performance.

This hybrid design reduces friction and heat generation compared to all-steel bearings.

The phenolic cage further improves durability and reduces maintenance needs.

With a static radial load of 2902 lbf, it handles both dynamic and static loads effectively.

Application

Key Fields for S71909 ACE/HCP4ADBA Bearing
S71909 ACE/HCP4ADBA Bearing is widely used in high-speed machine tools, where its ceramic balls and phenolic cage reduce friction and heat buildup. The sealed design keeps contaminants out, ensuring long-lasting performance in demanding environments.

In robotics, S71909 ACE/HCP4ADBA Bearing provides smooth motion control for articulated arms, thanks to its angular contact design and extra-light preload. The matched arrangement also enhances stability in precision applications.

For medical imaging devices, S71909 ACE/HCP4ADBA Bearing’s P4A tolerance class ensures minimal vibration, crucial for clear and accurate scans. The grease lubrication further extends service life in continuous operation scenarios.

Automotive enthusiasts appreciate S71909 ACE/HCP4ADBA Bearing in performance gearboxes, where its high-speed capability handles rapid shifts effortlessly. The chrome steel rings add durability under heavy angular loads.

In 3D printers, S71909 ACE/HCP4ADBA Bearing’s precision helps maintain accurate layer alignment, while the ceramic balls reduce wear during prolonged use. Its compact size fits well in space-constrained designs.

Q&A

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