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Super Precision Angular Contact Ball Bearings 708 CEGA/HCPA9A
Super Precision Angular Contact Ball Bearings 708 CEGA/HCPA9A

Super Precision Angular Contact Ball Bearings 708 CEGA/HCPA9A

The 708 CEGA/HCPA9A is a super precision angular contact ball bearing with an 8mm bore and 22mm outer diameter, compact at just 7mm wide. Made from chrome steel with ceramic balls, it offers smooth operation and durability.

Designed for angular contact loads, it handles up to 526 lbf dynamically and spins at speeds up to 100,000 RPM. The phenolic cage ensures quiet performance, while the extra light preload (Class A) enhances precision.

Its open design allows easy lubrication, suitable for temperatures from -30°C to 110°C. Weighing only 0.011kg, it’s lightweight yet robust.

Ideal for high-speed applications like spindles or small machinery where precision and low friction are key. Compatible with SKF bearings for easy replacement.

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Product Parameters

  • Part Number 708 CEGA/HCPA9A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 8 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 22 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 7 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 3.969 mm
  • Ball Qty 8
  • Contact Angle 15°
  • Tolerance Class PA9A
  • 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 526 lbf
  • Static Radial Load 180 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 100000 rpm
  • Weight 0.011 kg

Features

How Does 708 CEGA/HCPA9A Bearing Achieve Super Precision?

708 CEGA/HCPA9A Bearing features a 15° contact angle, ensuring precise angular contact performance.
Its ceramic balls and chrome steel rings reduce friction, enhancing speed and accuracy.

With a maximum speed of 100,000 rpm, it excels in high-speed applications.
The phenolic cage maintains ball alignment, contributing to smooth and quiet operation.

Designed for extra light preload, 708 CEGA/HCPA9A Bearing offers consistent performance under radial loads.
Its compact size (8 mm×22 mm×7 mm) makes it suitable for space-constrained installations.

The open seal design allows easy lubrication, ensuring long-term reliability.
Operating between -30°C to 110°C, it adapts to various environmental conditions.

Application

Ideal for Precision: 708 CEGA/HCPA9A Bearing
In high-speed machine tools, 708 CEGA/HCPA9A Bearing excels with its ceramic balls and 15° contact angle, reducing friction for smoother operation. The phenolic cage ensures quiet performance, ideal for precision grinding applications.

Where Is 708 CEGA/HCPA9A Bearing Used?
You’ll often find 708 CEGA/HCPA9A Bearing in dental drills and small medical devices, where its compact 8mm bore handles radial and axial loads effortlessly. Its PA9A tolerance class guarantees consistent accuracy in sensitive equipment.

Automotive vs Aerospace: Applications of 708 CEGA/HCPA9A Bearing
While 708 CEGA/HCPA9A Bearing supports gearbox components in performance cars, its lightweight design (just 0.011kg) also suits drone propulsion systems. The 100,000 rpm rating makes it versatile across industries.

Key Fields for 708 CEGA/HCPA9A Bearing
708 CEGA/HCPA9A Bearing works well in 3D printer extruders, where its extra-light preload maintains positioning accuracy. The chrome steel rings provide durability for continuous operation in maker spaces and small factories.

How Does 708 CEGA/HCPA9A Bearing Improve Performance?
With universal matching capability, 708 CEGA/HCPA9A Bearing simplifies installation in paired configurations like back-to-back arrangements. The lubricated design extends service life in hard-to-access equipment.

Q&A

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