BRAND: NTN

ID: 4T-HM804840

Description:

 

4T-HM804840 – NTN Tapered Roller Bearing Cone (Single Row)

Brand: NTN
Item Number: 4T-HM804840
Also Known As: HM804840
Category: Cone for Tapered Roller Bearings – Single Row
Country of Origin: Japan
EAN: 4547359475418

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Product Description

The NTN 4T-HM804840 is a precision-engineered tapered roller bearing cone, designed for use with a matching cup (outer race) to form a single-row tapered roller bearing assembly.
This bearing cone provides excellent load-carrying capacity, reduced friction, and superior alignment in demanding industrial, automotive, and heavy-duty applications.

Manufactured in Japan from premium bearing steel, NTN’s 4T series bearings feature improved surface finish and optimized roller geometry, ensuring long service life and consistent performance even under shock or heavy loads.

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Technical Specifications

Parameter	Metric	Imperial
Inner Diameter (d)	41.28 mm	1.625 in
Width (B)	29.37 mm	1.1563 in
Weight	0.756 kg	—

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Design Features

• Type: Tapered Roller Bearing – Cone (Inner Race with Rollers)
• Configuration: Single Row
• Material: High-carbon chromium bearing steel
• Series: NTN 4T (optimized geometry, improved wear resistance)
• Tolerance Class: P0 / Standard Precision
• Lubrication: Standard factory-applied oil coating
• Operating Temperature: −30 °C to +120 °C

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Performance Advantages

• Handles high radial and axial loads.
• High durability and dimensional accuracy.
• Reduced operating temperature and friction.
• Compatible with standard HM804810 cups and equivalents.

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Typical Applications

• Automotive wheel hubs and axles
• Gearboxes and transmissions
• Agricultural and construction machinery
• Industrial powertrain systems