Timken LM78310A Tapered Roller Bearing Cup

Description

The Timken LM78310A is a single cup (outer ring) for a tapered roller bearing, designed to be used with a corresponding cone assembly (LM78349). Manufactured from high-quality, case-hardened steel, it provides superior durability and reliability for applications subjected to heavy radial and thrust loads. This component is a crucial part of a complete bearing set used in gearboxes, automotive axles, and various industrial machinery.

Specifications

• Manufacturer: Timken
• Part Number: LM78310A
• Component: Bearing Cup (Outer Ring)
• Outer Diameter: 82.550 mm (3.2500 in)
• Width: 21.430 mm (0.8437 in)
• Material: Case-Hardened Bearing Steel

Label Info

• TIMKEN LM78310A-20082
• EAN: 053893402886

Application

This bearing cup is commonly used in automotive transaxles, industrial gear reducers, and agricultural equipment where robust performance and long service life are required.

Country of Origin

Made in France.

CO2 Impact

Choosing this component saves approximately 0.52 kg of CO2 compared to manufacturing a new one, contributing to a more sustainable operation.

Availability

This item is in stock and ready for immediate dispatch. Order now from PLC2Day for expert support and fast delivery.

FAQ

What cone assembly is compatible with the LM78310A cup?

The LM78310A cup is designed to be paired with the Timken LM78349 cone assembly to form a complete single-row tapered roller bearing set.

Yes, proper installation is critical. The cup should be pressed squarely into the housing bore using a suitable press and fitting tool that applies force evenly to the cup's face. Refer to Timken's official maintenance and installation guides for detailed procedures and lubrication requirements.

This bearing cup is made from high-quality, case-hardened bearing steel for durability and resistance to wear. It is suitable for a wide range of industrial applications, including automotive axles, gearboxes, and heavy machinery where high radial and axial loads are present.

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Last Update: Friday, March 13, 2026