Super Precision Angular Contact Ball Bearings S7209 ACD/P4A

The S7209 ACD/P4A is a super precision angular contact ball bearing with a 45mm bore and 85mm outer diameter, crafted from durable chrome steel. Its 25° contact angle efficiently handles combined radial and thrust loads, supporting up to 9225 lbf dynamically.

Sealed for protection, this bearing comes pre-lubricated and maintains smooth operation at speeds up to 15,000 RPM. The phenolic cage reduces friction, enhancing performance in high-speed applications.

With a P4 tolerance class, it offers exceptional accuracy for precision machinery. Ideal for spindle assemblies or high-performance tools where reliability is key.

Weighing 0.42kg, it operates in temperatures from -30°C to 110°C. Compatible with SKF bearings, it’s a practical choice for replacements or upgrades.

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Description

Features

Application

Q&A

Product Parameters

Part Number S7209 ACD/P4A
Brand TFL
Interchangeable SKF
Bore Dia 45 mm
Bore Dia Tolerance -0.006mm to 0
Outer Dia 85 mm
Outer Dia Tolerance -0.008mm to 0
Width 19 mm
Width Tolerance -0.2mm to 0
Ball Dia 12.7 mm
Ball Qty 14
Contact Angle 25°
Tolerance Class P4 (ABEC-7)
System of Measurement Metric
Seal Type Sealed
Matched Arrangement No
Preload Available
For Load Direction Angular Contact
Ring Material Chrome Steel
Ball Material Chrome Steel
Cage Material Phenolic
Dynamic Radial Load 9225 lbf
Static Radial Load 6750 lbf
Lubrication Lubricated
Temperature Range -30° to 110 °C
Max Speed 15000 rpm
Weight 0.42 kg
Price（$） 337.671

Super Precision Angular Contact Ball Bearings S7209 ACD/P4A dimension drawing

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Features

How Is S7209 ACD/P4A Bearing Engineered for Reliability?

S7209 ACD/P4A Bearing features a 25° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and balls enhance durability, supporting dynamic radial loads up to 9225 lbf.
The phenolic cage ensures smooth operation at high speeds, reaching up to 15,000 rpm.
With a P4 tolerance class, it delivers precision performance in demanding conditions.

Application

Common Applications of S7209 ACD/P4A Bearing
S7209 ACD/P4A Bearing is widely used in high-speed machine tools, where its precision angular contact design ensures accurate spindle rotation. The sealed construction helps maintain performance in environments with dust or debris.

In automotive applications, S7209 ACD/P4A Bearing supports wheel hubs and transmission systems, offering reliable handling of combined radial and axial loads. Its phenolic cage provides smooth operation even at high rotational speeds.

For robotics, S7209 ACD/P4A Bearing is a solid choice for articulated arms and joints, thanks to its consistent performance under dynamic loads. The P4 tolerance class makes it suitable for applications requiring tight precision.

In medical imaging devices, S7209 ACD/P4A Bearing’s chrome steel construction ensures durability and minimal vibration. The lubricated design further enhances its longevity in continuous-use scenarios.