+86 15806631151 [email protected]
TFL BEARINGS
REQUEST A QUOTE
Super Precision Angular Contact Ball Bearings 7021 ACD/P4ADBC

Super Precision Angular Contact Ball Bearings 7021 ACD/P4ADBC

The 7021 ACD/P4ADBC is a super precision angular contact ball bearing with a 105mm bore and 160mm outer diameter, crafted from high-quality chrome steel. It handles radial loads up to 33300 lbf and operates smoothly at speeds up to 16000 RPM.

With a 25° contact angle and moderate preload, it offers excellent stability for angular loads. The phenolic cage ensures durability and reduces friction, making it ideal for high-speed applications.

This matched set of two bearings in a DB arrangement provides balanced performance. Suitable for precision machinery like spindles or CNC equipment where accuracy is key.

Weighing 3.18kg, it’s robust yet manageable. Compliant with P4A tolerance standards, it ensures reliable performance in temperatures from -30°C to 110°C.

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

Product Parameters

  • Part Number 7021 ACD/P4ADBC
  • 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 52 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 Open
  • Matched Arrangement 2 bearings <> DB
  • Number Of Bearings In Matched Set 2
  • Universal Matching Bearing No
  • Preload Moderate / Class C
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 33300 lbf
  • Static Radial Load 41850 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 16000 rpm
  • Weight 3.18 kg
Super Precision Angular Contact Ball Bearings 7021 ACD/P4ADBC dimension drawing
Download DWG Download PDF

Features

Performance Features of 7021 ACD/P4ADBC Bearing

7021 ACD/P4ADBC Bearing is designed with a 25° contact angle, ideal for handling combined radial and axial loads.
The chrome steel rings and balls ensure high durability, while the phenolic cage provides stability at high speeds.

With a dynamic radial load capacity of 33,300 lbf, it performs reliably in demanding applications.
Its P4A tolerance class guarantees precision, making it suitable for high-accuracy machinery.

The matched arrangement of two bearings (DB) offers balanced load distribution.
Operating at speeds up to 16,000 rpm, it maintains efficiency without compromising performance.

Its open design allows for easy lubrication, ensuring smooth operation.
The temperature range of -30°C to 110°C makes it versatile for various environments.

Application

Industrial Uses of 7021 ACD/P4ADBC Bearing
This bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The moderate preload helps maintain stability during heavy cutting operations.

In automotive applications, 7021 ACD/P4ADBC Bearing supports high-performance gearboxes, particularly in racing or luxury vehicles. Its phenolic cage provides quiet operation, ideal for reducing noise in drivetrain systems.

For automation equipment, 7021 ACD/P4ADBC Bearing excels in robotic arms due to its matched arrangement and P4A tolerance class. The chrome steel construction ensures durability in continuous operation scenarios.

Medical imaging devices benefit from 7021 ACD/P4ADBC Bearing’s precision, especially in CT scanners where smooth rotation is critical. The open design allows for easy lubrication maintenance in sterile environments.

In aerospace systems, 7021 ACD/P4ADBC Bearing handles both radial and axial loads in flight control mechanisms. Its temperature range makes it suitable for various operational conditions.

Q&A

SEND INQUIRY