TIMKEN 742

Timken 742 Tapered Roller Bearing Cup

Description

The Timken 742 is a high-precision tapered roller bearing cup (outer race) designed for superior performance in a wide range of industrial and automotive applications. Engineered with case-hardened steel, it provides excellent durability and resistance to wear, ensuring reliable operation under heavy radial and axial loads. This component is crucial for creating complete tapered roller bearing assemblies that offer low friction and long service life.

Specifications

• Manufacturer: Timken
• Part Number: 742
• Component: Bearing Cup (Outer Race)
• Outer Diameter (D): 139.7 mm (5.5000 in)
• Cup Width (B): 28.575 mm (1.1250 in)
• Material: High-carbon chromium bearing steel

Label Info

• Brand: TIMKEN
• Part: 742
• Origin: U S A
• EAN: 053893080819

Application

This bearing cup is commonly used in gearboxes, wheel hubs, axle systems, and various types of heavy machinery where robust load management is required. It must be paired with a corresponding cone assembly (e.g., Timken 749, 749A) to form a complete bearing.

Country of Origin

This product is proudly manufactured in the USA, as indicated on the bearing itself.

CO2 Impact

Opting for this component helps avoid the emission of 2.8 kg of CO2 compared to manufacturing a new one. This saving is equivalent to the carbon captured by a tree over several months.

Availability

This item is in stock and available for immediate dispatch. It is new old stock (NOS) in its original, opened packaging. Order now from spareparts2day for expert support and fast delivery.

FAQ

What is the matching cone for this Timken 742 cup?

The Timken 742 cup is most commonly matched with cone assemblies from the 749 series, such as the Timken 749, 749A, or 749S, to form a complete single-row tapered roller bearing.

Is this cup made of standard bearing steel?

Yes, Timken uses high-quality, case-carburized bearing steel which provides a hard, wear-resistant surface and a tough, ductile core to handle shock loads.

Can this bearing cup be used in high-temperature applications?

Standard Timken bearings are typically rated for continuous operation up to 120 deg C (250 deg F). For temperatures exceeding this, special materials, heat treatments, and lubricants may be required.

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Last Update: Friday, March 13, 2026