ABB TNR 25590 TNR25590

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Based on my analysis, “TNR 25590” is not a part number for an ABB product. This alphanumeric code refers to a specific component of a standard tapered roller bearing. The association with ABB in your query is likely a misunderstanding or a simple co-occurrence in a product list or inventory document.

Here’s a breakdown of what the part number signifies:

Tapered Roller Bearing: Part Number 25590

The number 25590 identifies the cone (inner ring) of a tapered roller bearing. Tapered roller bearings are designed to handle both radial and axial loads and are commonly used in industrial and automotive applications where heavy-duty performance is required.

These bearings are sold as a two-part set:

• Cone Assembly: This includes the inner ring, the rollers, and the cage. The part number 25590 refers to this component.
• Cup: This is the outer ring, which is sold separately and is designed to fit the cone. The cone 25590 is frequently paired with a 25520 or 25522 cup.

Key Specifications for the 25590 Cone

This is a standard part in the inch series, meaning its dimensions are based on imperial measurements. Here are its typical specifications:

• Bore Diameter (d): 1.7960 inches (45.618 mm)
• Cone Width (B): 1.0000 inches (25.400 mm)
• Paired Cup: Often 25520 or 25522
• Materials: Typically made from high-quality bearing-grade steel, such as 52100 Chromium Steel.
• Load Ratings: The static and dynamic load ratings vary slightly by manufacturer but are designed to support significant forces. For example, a common static radial rating is around 24,900 lbf (111,000 N).

Manufacturers and Interchangeability

The 25590 bearing is a widely produced industrial component. It is manufactured by many of the world’s leading bearing companies. If you are looking for a replacement, you can find this part from a variety of manufacturers, as it is a highly standardized part.

Common manufacturers include:

• Timken
• NTN
• SKF
• Koyo

When purchasing a replacement, you can search for the specific cone number 25590, or the full bearing set number, such as 25590/25520, to ensure you get the correct paired components for a complete assembly.