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Super Precision Angular Contact Ball Bearings 71908 CBGA/HCP4A

Super Precision Angular Contact Ball Bearings 71908 CBGA/HCP4A

The 71908 CBGA/HCP4A is a super precision angular contact ball bearing with a 40mm bore and 62mm outer diameter, crafted from chrome steel for durability. It features a 15° contact angle and ceramic balls for smooth operation.

This bearing handles radial loads up to 1215 lbf and spins at speeds up to 41,000 RPM, making it suitable for high-performance applications. Its phenolic cage ensures stability and reduces friction.

Designed for angular contact loads, it comes preloaded for extra light performance. The open seal allows easy lubrication, and it operates in temperatures from -30°C to 110°C.

Ideal for precision machinery like spindles or CNC equipment, it’s interchangeable with SKF bearings. Weighing just 0.11kg, it’s lightweight yet robust for its size. Universal matching options include back-to-back or face-to-face arrangements.

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Product Parameters

  • Part Number 71908 CBGA/HCP4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 40 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 62 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 12 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 3.969 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 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 Ceramic
  • Cage Material Phenolic
  • Dynamic Radial Load 1215 lbf
  • Static Radial Load 934 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 41000 rpm
  • Weight 0.11 kg
Super Precision Angular Contact Ball Bearings 71908 CBGA/HCP4A dimension drawing
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Features

Performance Features of 71908 CBGA/HCP4A Bearing

71908 CBGA/HCP4A Bearing is crafted with chrome steel rings and ceramic balls, offering high precision and durability.
Its 15° contact angle ensures optimal performance in angular contact applications.

The phenolic cage maintains ball alignment, reducing friction and enhancing speed capabilities.
With a maximum speed of 41,000 rpm, it excels in high-speed operations.

71908 CBGA/HCP4A Bearing operates efficiently in temperatures ranging from -30°C to 110°C.
Its extra light preload class A design ensures smooth and precise movement.

The dynamic radial load capacity of 1215 lbf makes it suitable for demanding tasks.
Its universal matching feature allows flexible arrangement options for various setups.

Application

Industrial Uses of 71908 CBGA/HCP4A Bearing
71908 CBGA/HCP4A Bearing is commonly used in high-speed machine tools, where its ceramic balls and phenolic cage reduce friction and heat buildup. The P4A tolerance ensures precise alignment for smooth operation in demanding conditions.

Where Is 71908 CBGA/HCP4A Bearing Used?
You’ll often find 71908 CBGA/HCP4A Bearing in automotive applications like electric motor shafts, where its angular contact design handles combined loads efficiently. The extra light preload also minimises vibration for quieter performance.

Perfect Fit for Automation: 71908 CBGA/HCP4A Bearing
In robotic arms, 71908 CBGA/HCP4A Bearing’s 15° contact angle provides stability during rapid directional changes. Its universal matching capability allows flexible mounting in tight spaces.

Medical vs Industrial: Where 71908 CBGA/HCP4A Bearing Excels
While 71908 CBGA/HCP4A Bearing performs well in industrial grinders, it’s equally suited for medical centrifuges due to its contamination-resistant ceramic components. The wide temperature range ensures reliability in both environments.

How Does 71908 CBGA/HCP4A Bearing Support High-Speed Operations?
With a max speed of 41,000 rpm, 71908 CBGA/HCP4A Bearing is ideal for dental drill handpieces and small spindles. The chrome steel rings provide durability without compromising on precision.

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