Super Precision Angular Contact Ball Bearings 71818 CDGB/P4

The 71818 CDGB/P4 is a super precision angular contact ball bearing with a 90mm bore and 115mm outer diameter, crafted from durable chrome steel. It handles radial loads up to 4860 lbf and spins smoothly at speeds up to 15,000 RPM.

Its 15° contact angle and phenolic cage ensure stable performance under angular loads, while the open design allows easy lubrication. The bearing operates reliably in temperatures from -30°C to 110°C.

This P4-class bearing is interchangeable with SKF models and comes in pairs for universal matching (back-to-back, face-to-face, or tandem). Ideal for high-precision applications like machine tool spindles or robotics.

Weighing just 0.28kg, it’s lightweight yet robust for its size, making it a practical choice for demanding setups.

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Description

Features

Application

Q&A

Product Parameters

Part Number 71818 CDGB/P4
Brand TFL
Interchangeable SKF
Bore Dia 90 mm
Bore Dia Tolerance -0.004mm to 0
Outer Dia 115 mm
Outer Dia Tolerance -0.004mm to 0
Width 13 mm
Width Tolerance -0.2mm to 0
Ball Dia 7.144 mm
Ball Qty 31
Contact Angle 15°
Tolerance Class P4
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 4860 lbf
Static Radial Load 5962 lbf
Lubrication Lubricated
Temperature Range - 30°C to 110 °C
Max Speed 15000 rpm
Weight 0.28 kg

Super Precision Angular Contact Ball Bearings 71818 CDGB/P4 dimension drawing

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Features

Performance Features of 71818 CDGB/P4 Bearing

71818 CDGB/P4 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 4860 lbf.

Its phenolic cage ensures smooth operation at high speeds, reaching up to 15,000 rpm.
The P4 tolerance class guarantees precision, making it suitable for demanding tasks.

With a temperature range of -30°C to 110°C, 71818 CDGB/P4 Bearing performs reliably in varied conditions.
The open design allows for easy lubrication, maintaining efficiency over time.

The lightweight construction at 0.28 kg reduces overall system load without compromising strength.
Its universal matching capability offers flexibility in back-to-back, face-to-face, or tandem arrangements.

Application

Key Fields for 71818 CDGB/P4 Bearing
71818 CDGB/P4 Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The light preload helps maintain stability during high-speed operations.

In aerospace applications, 71818 CDGB/P4 Bearing supports components like helicopter rotor systems, thanks to its reliable performance under radial loads. The phenolic cage reduces friction, making it suitable for demanding environments.

For automation equipment, 71818 CDGB/P4 Bearing is ideal for robotic arms, providing smooth movement with minimal vibration. Its P4 tolerance class guarantees consistent precision in repetitive tasks.

Medical imaging devices benefit from 71818 CDGB/P4 Bearing’s chrome steel construction, which offers durability in high-use scenarios. The open design allows for easy lubrication, extending service life.

In electric motors, 71818 CDGB/P4 Bearing handles both radial and axial loads efficiently. The metric sizing ensures compatibility with a wide range of industrial motor designs.