Super Precision Angular Contact Ball Bearings 71908 CEGB/P4A

Super Precision Angular Contact Ball Bearings 71908 CEGB/P4A

The 71908 CEGB/P4A is a super precision angular contact ball bearing with a 40mm bore and 62mm outer diameter, crafted from durable chrome steel. It handles radial loads up to 2194 lbf and spins smoothly at speeds up to 56,000 RPM.

With a 15° contact angle and light preload, it offers precise performance for angular contact applications. The open design and phenolic cage ensure reliable operation in temperatures from -30°C to 110°C.

This bearing is interchangeable with SKF models and comes in a set of two, suitable for back-to-back or face-to-face arrangements. Ideal for high-precision machinery like spindles or CNC equipment where accuracy is key.

Weighing just 0.1kg, it’s lightweight yet robust, meeting P4A tolerance standards for exceptional performance.

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Product Parameters

  • Part Number 71908 CEGB/P4A
  • 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 6.35 mm
  • Ball Qty 19
  • 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 Light / Class B
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 2194 lbf
  • Static Radial Load 1350 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 56000 rpm
  • Weight 0.1 kg

Features

Performance Features of 71908 CEGB/P4A Bearing

71908 CEGB/P4A Bearing is crafted with chrome steel rings and balls, ensuring high precision and durability.
Its 15° contact angle allows for efficient handling of combined radial and axial loads.
The phenolic cage maintains ball alignment, reducing friction and enhancing performance.
With a maximum speed of 56,000 rpm, it is ideal for high-speed applications.

Why Choose 71908 CEGB/P4A Bearing for Precision Tasks?

71908 CEGB/P4A Bearing’s P4A tolerance class guarantees exceptional accuracy for precision machinery.
The light preload (Class B) ensures smooth operation and minimises vibration.
Its open design allows for easy lubrication, maintaining optimal performance over time.
The bearing can be matched in universal sets for back-to-back, face-to-face, or tandem arrangements.

Engineered for Precision: 71908 CEGB/P4A Bearing

71908 CEGB/P4A Bearing’s chrome steel construction provides excellent resistance to wear and fatigue.
The 19 balls, each 6.35 mm in diameter, distribute loads evenly for consistent performance.
Its dynamic radial load capacity of 2194 lbf ensures reliability in demanding conditions.
Operating temperatures range from -30°C to 110°C, making it versatile for various environments.

How Does 71908 CEGB/P4A Bearing Reduce Friction?

71908 CEGB/P4A Bearing’s phenolic cage reduces friction by keeping the balls perfectly aligned.
The precise 15° contact angle optimises load distribution, minimising energy loss.
Lubrication is easily maintained due to its open design, ensuring smooth operation.
With a width tolerance of -0.2mm to 0, it fits perfectly in precision applications.

Steel vs Ceramic Bearings: Strengths of 71908 CEGB/P4A Bearing

71908 CEGB/P4A Bearing’s chrome steel construction offers a balance of strength and affordability.
The material choice ensures reliable performance under high dynamic radial loads up to 2194 lbf.
Its phenolic cage provides better heat resistance compared to metal cages in high-speed scenarios.
Weighing just 0.1 kg, it combines lightweight design with robust durability.

Application

Common Applications of 71908 CEGB/P4A Bearing
71908 CEGB/P4A Bearing is widely used in high-speed machine tools, where its 15° contact angle ensures smooth rotation under radial and axial loads. The open design and phenolic cage make it suitable for applications requiring minimal friction.

In robotics, 71908 CEGB/P4A Bearing provides precise movement in articulated arms, thanks to its P4A tolerance class. Its lightweight construction also helps reduce overall system inertia.

For medical imaging devices, 71908 CEGB/P4A Bearing’s chrome steel components offer reliable performance in sensitive environments. The lubricated design ensures quiet operation, which is essential for patient comfort.

Automotive applications like electric vehicle motors benefit from 71908 CEGB/P4A Bearing’s ability to handle high speeds. Its universal matching feature allows for flexible configurations in compact spaces.

In consumer electronics, 71908 CEGB/P4A Bearing is often found in precision instruments like 3D printers. The light preload ensures consistent accuracy during detailed printing tasks.

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