TIMKEN 552A

Timken 552A Tapered Roller Bearing Cup

Description

The Timken 552A is a single cup, or outer ring, for a tapered roller bearing assembly. Manufactured to exacting standards in the USA, this component is designed to be matched with a corresponding cone assembly to form a complete single tapered roller bearing. It is engineered to handle both radial and axial loads simultaneously, making it ideal for a wide range of industrial and automotive applications.

Specifications

• Manufacturer: Timken
• Part Number: 552A
• Component: Bearing Cup (Outer Ring)
• Outer Diameter: 114.300 mm (4.5000 inches)
• Width: 23.813 mm (0.9375 inches)
• Material: Case-Hardened Steel

Label Info

• TIMKEN
• 552A
• MADE IN U.S.A.
• HL

Application

This bearing cup is commonly used in applications such as vehicle axle systems, industrial gearboxes, rolling mills, and various types of heavy machinery where durability and load-bearing capacity are critical.

Country of Origin

This product is proudly made in the USA.

CO2 Impact

By purchasing this reused component, you are helping to avoid the production of a new one, saving approximately 1.3 kg of CO2. This is a small but significant step towards a more sustainable industrial practice.

Availability

This item is in stock and ready for immediate dispatch. Order now from spareparts2day for expert support and fast delivery.

FAQ

What cone assembly should be used with the Timken 552A cup?

The 552A cup is designed to be paired with several cone assemblies depending on the specific application requirements. Common compatible cones include the Timken 555S, 559, and 560 series.

Is the ‘HL’ marking on the cup significant?

Yes, the ‘HL’ marking indicates that this is a High-Performance series bearing from Timken. These bearings are designed with enhanced geometry and surface finishes to provide superior performance, longer life, and higher load ratings compared to standard bearings.

What is the proper lubrication procedure for a new tapered roller bearing like this?

Before installation, the bearing and cup should be cleaned of any preservative oils. It should then be lubricated with a high-quality grease suitable for the application’s speed and temperature. It’s crucial not to over-pack the bearing, as this can lead to overheating. Generally, filling about one-third of the free space with grease is recommended.

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Last Update: Friday, March 13, 2026