Super Precision Angular Contact Ball Bearings 71909 CDGB/P4A

The 71909 CDGB/P4A is a super precision angular contact ball bearing with a 45mm bore and 68mm outer diameter, crafted from high-quality chrome steel. It features a 15° contact angle and is designed for light preload applications, ensuring smooth operation.

With a dynamic radial load capacity of 2925 lbf, it spins efficiently at speeds up to 41,000 RPM. The open design allows for easy lubrication, while the phenolic cage enhances durability and reduces friction.

This bearing is ideal for high-precision machinery like CNC spindles or medical equipment, where accuracy and reliability are crucial. It operates well in temperatures from -30°C to 110°C.

Weighing just 0.13kg, it’s lightweight yet robust. It’s interchangeable with SKF bearings and comes in a universal matching set, suitable for back-to-back, face-to-face, or tandem arrangements.

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Description

Features

Application

Q&A

Product Parameters

Part Number 71909 CDGB/P4A
Brand TFL
Interchangeable SKF
Bore Dia 45 mm
Bore Dia Tolerance -0.004mm to 0
Outer Dia 68 mm
Outer Dia Tolerance -0.004mm to 0
Width 12 mm
Width Tolerance -0.2mm to 0
Ball Dia 6.35 mm
Ball Qty 23
Contact Angle 15°
Tolerance Class P4A
System of Measurement Metric
Seal Type Open
Matched Arrangement No
Number Of Bearings In Matched Set 3
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 2925 lbf
Static Radial Load 2138 lbf
Lubrication Lubricated
Temperature Range - 30°C to 110 °C
Max Speed 41000 rpm
Weight 0.13 kg

Super Precision Angular Contact Ball Bearings 71909 CDGB/P4A dimension drawing

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Features

How Does 71909 CDGB/P4A Bearing Achieve Super Precision?

71909 CDGB/P4A Bearing features a 15° contact angle, optimising load distribution for high-precision applications.
Its chrome steel construction ensures durability while maintaining tight tolerances for consistent performance.

The phenolic cage minimises friction, allowing speeds up to 41,000 rpm without compromising accuracy.
With a dynamic radial load capacity of 2925 lbf, it handles demanding tasks with ease.

Its universal matching capability enables flexible arrangements like back-to-back or tandem configurations.
This makes 71909 CDGB/P4A Bearing adaptable to various precision engineering needs.

Application

Key Fields for 71909 CDGB/P4A Bearing
71909 CDGB/P4A Bearing is commonly used in high-speed machine spindles, where its precision angular contact design ensures smooth rotation. The light preload helps reduce vibration, making it ideal for CNC machining centres.

In robotics, 71909 CDGB/P4A Bearing supports articulated arms that require both radial and axial load capacity. Its phenolic cage provides quiet operation, which is essential in automated assembly lines.

For medical imaging devices like CT scanners, 71909 CDGB/P4A Bearing offers reliable performance due to its P4A tolerance class. The chrome steel construction ensures long service life even in continuous operation.

Automotive applications include electric vehicle motors, where 71909 CDGB/P4A Bearing handles high speeds efficiently. The open design allows for easy lubrication, extending its usability in demanding conditions.

In aerospace components, 71909 CDGB/P4A Bearing is chosen for its ability to withstand both radial and thrust loads. The metric sizing ensures compatibility with various international aircraft systems.