+86 15806631151 [email protected]
TFL BEARINGS
REQUEST A QUOTE
Super Precision Angular Contact Ball Bearings 71938 CDGA/P4A

Super Precision Angular Contact Ball Bearings 71938 CDGA/P4A

The 71938 CDGA/P4A is a super precision angular contact ball bearing with a 190mm bore and 260mm outer diameter, crafted from high-quality chrome steel. It features a 15° contact angle and comes in an open design for easy lubrication.

With a dynamic radial load capacity of 38700 lbf, it handles high-speed operations up to 16250 RPM smoothly. The phenolic cage ensures durability, while the extra light preload (Class A) enhances precision.

This bearing is ideal for applications requiring tight tolerances, such as machine tool spindles or high-precision equipment. It can be arranged back-to-back, face-to-face, or tandem for versatile use.

Weighing 4.35kg, it’s robust yet manageable for its size. Compliant with P4A tolerance standards, it’s interchangeable with SKF bearings, making replacements straightforward. Suitable for temperatures between -30°C and 110°C.

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

Product Parameters

  • Part Number 71938 CDGA/P4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 190 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 260 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 33 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 22.225 mm
  • Ball Qty 28
  • Contact Angle 15°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement No
  • Number Of Bearings In Matched Set 4
  • 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 38700 lbf
  • Static Radial Load 49500 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 16250 rpm
  • Weight 4.35 kg
Super Precision Angular Contact Ball Bearings 71938 CDGA/P4A dimension drawing
Download DWG Download PDF

Features

Performance Features of 71938 CDGA/P4A Bearing

71938 CDGA/P4A Bearing is designed with a 15° contact angle, optimising load distribution for angular contact applications.

The chrome steel rings and balls enhance durability, supporting dynamic radial loads up to 38,700 lbf.

Its phenolic cage ensures smooth operation at high speeds, reaching up to 16,250 rpm.

With a P4A tolerance class, this bearing delivers precision performance in demanding conditions.

Application

Industrial Uses of 71938 CDGA/P4A Bearing
71938 CDGA/P4A Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The extra light preload makes it suitable for applications requiring minimal friction and smooth operation.

In aerospace applications, 71938 CDGA/P4A Bearing supports components like turbine shafts, thanks to its high dynamic radial load capacity. The phenolic cage provides stability even under extreme temperature variations.

For robotics, 71938 CDGA/P4A Bearing is ideal for joints and rotary tables, where its P4A tolerance class guarantees consistent performance. The open design allows for easy lubrication, extending its service life in demanding environments.

Medical imaging devices benefit from 71938 CDGA/P4A Bearing’s chrome steel construction, ensuring reliability in high-speed rotations. Its matched arrangement options offer flexibility for custom configurations in specialised equipment.

In automation systems, 71938 CDGA/P4A Bearing enhances the precision of linear actuators and CNC machinery. The 15° contact angle provides optimal load distribution, reducing wear over time.

Q&A

SEND INQUIRY