+86 15806631151 [email protected]
TFL BEARINGS
REQUEST A QUOTE
Super Precision Angular Contact Ball Bearings S71911 ACE/P4ADGA

Super Precision Angular Contact Ball Bearings S71911 ACE/P4ADGA

The S71911 ACE/P4ADGA is a super precision angular contact ball bearing with a 55mm bore and 80mm outer diameter, crafted from durable chrome steel. It features a 25° contact angle and comes sealed for protection, with grease lubrication for smooth operation.

This bearing handles radial loads up to 5355 lbf and spins at speeds up to 34,000 RPM, making it suitable for high-performance applications. Its phenolic cage ensures quiet and efficient running, even under stress.

Designed for universal matching, it can be arranged back-to-back, face-to-face, or tandem, offering flexibility in installation. The extra-light preload (Class A) enhances precision and reduces friction.

Ideal for machine tools or high-speed spindles, it operates in temperatures from -30°C to 110°C. Weighing just 0.35kg, it’s lightweight yet robust, meeting P4A tolerance standards for accuracy.

Get A Free Quote
    Description Features Application Q&A Featured Products Our Process

Product Parameters

  • Part Number S71911 ACE/P4ADGA
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 55 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 80 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 26 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 7.938 mm
  • Ball Qty 21
  • Contact Angle 25°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Sealed
  • Matched Arrangement Universal matching
  • Number Of Bearings In Matched Set 2
  • 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 5355 lbf
  • Static Radial Load 4500 lbf
  • Lubrication Grease
  • Temperature Range - 30°C to 110 °C
  • Max Speed 34000 rpm
  • Weight 0.35 kg
Super Precision Angular Contact Ball Bearings S71911 ACE/P4ADGA dimension drawing
Download DWG Download PDF

Features

How Is S71911 ACE/P4ADGA Bearing Engineered for Reliability?

S71911 ACE/P4ADGA Bearing features a 25° contact angle, optimised for handling combined radial and axial loads.
Its chrome steel rings and balls ensure durability, while the phenolic cage reduces friction and wear.

With a dynamic radial load capacity of 5355 lbf, it performs reliably in high-precision applications.
The sealed design and grease lubrication minimise maintenance, even at speeds up to 34,000 rpm.

Universal matching allows flexible arrangement, supporting back-to-back, face-to-face, or tandem configurations.
This makes S71911 ACE/P4ADGA Bearing adaptable to various operational needs.

Application

Ideal for Precision: S71911 ACE/P4ADGA Bearing
S71911 ACE/P4ADGA Bearing is commonly used in high-speed machine spindles, where its 25° contact angle ensures accurate radial and axial load distribution. The sealed design keeps contaminants out, extending service life in demanding workshop conditions.

In robotics, S71911 ACE/P4ADGA Bearing provides smooth motion control for articulated arms, thanks to its phenolic cage reducing friction at high RPMs. The universal matching feature allows flexible arrangement in compact assemblies.

For dental drill handpieces, S71911 ACE/P4ADGA Bearing’s P4A tolerance delivers the quiet operation needed for patient comfort. Its grease lubrication works reliably within the -30°C to 110°C range encountered in sterilisation cycles.

The bearing’s extra-light preload makes it suitable for precision measuring instruments where minimal starting torque is required. Chrome steel construction maintains dimensional stability during prolonged use in laboratory environments.

In CNC indexing tables, S71911 ACE/P4ADGA Bearing’s tandem mounting capability supports combined loads during rotary positioning. The 34,000 rpm rating handles rapid tool changes without compromising accuracy.

Q&A

SEND INQUIRY