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498-493D TDO (Two-Row Double-Outer Race) (Imperial)

498-493D TDO (Two-Row Double-Outer Race) (Imperial)

The 498-493D is a double-row tapered roller bearing with a 3.3125″ bore and 5.375″ outer diameter, built from sturdy chrome steel. It handles combined loads up to 60500 lbf and is designed for long-lasting performance in demanding conditions.

Its open design allows easy lubrication, while the steel cage ensures smooth operation. The bearing works well in temperatures from -30°C to 110°C, making it versatile for various environments.

This model is part of the 495 series, offering standard radial clearance with options for C3, C4, or C5. Ideal for heavy-duty applications like industrial gearboxes or large machinery where combined loads are common.

Weighing 7.59 lb, it’s a robust choice for high-load scenarios. Compliant with RoHS and REACH standards for safe and reliable use.

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Product Parameters

  • Part Number 498-493D
  • Brand TFL
  • Size 3.3125" x 5.375" x 1.172"
  • Bore Dia 3.3125"
  • Bore Dia Tolerance +0.001" to 0
  • Outer Dia 5.375"
  • Outer Dia Tolerance +0.001" to 0
  • Double Cup Width 2.125"
  • Double Cup Width Tolerance +0.003" to -0.01
  • Cone Width 1.172"
  • Cone Width Tolerance +0.002" to -0.01
  • Bearing Width Across Cups 2.75"
  • Bearing Width Across Cups Tolerance +0.008" to 0
  • Cup Backface ToClear Radius 0.03"
  • Cone Backface Backing Diameter 3.86"
  • Cup Frontface Backing Diameter 5.16"
  • Cage Cone Backface Clearance 0.07"
  • Dynamic Radial Load 60500 lbf
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 498
  • Cup Part Number 493D
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Double Row
  • Seal Type Open
  • Cups Type Standard
  • Series 495
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Rating(One Row 90 Million Revolutions) 9000 lbf
  • Dynamic Thrust Rating(90 Million Revolutions) 6850 lbf
  • Dynamic Radial Rating(Two Row 90 Million Revolutions) 15700 lbf
  • Lubrication Required
  • Temperature Range -30° to 110 °C
  • ABEC Rating ABEC-1
  • Radial Clearance Standard (Available in C3/C4/C5)
  • RoHS Compliant
  • REACH Compliant
  • Weight 7.59 lb

Features

How Is 498-493D Bearing Engineered for Reliability?

498-493D Bearing features a double-row tapered roller design, providing strong resistance to combined radial and thrust loads.
Its chrome steel construction ensures durability, with a dynamic radial load capacity of 60,500 lbf.

The steel cage maintains roller alignment, reducing friction and extending operational life.
With a temperature range of -30° to 110°C, it performs reliably in various conditions.

498-493D Bearing’s standard radial clearance options offer flexibility for different applications.
Its precision tolerances ensure smooth operation and easy integration into existing systems.

Application

Common Applications of 498-493D Bearing
The 498-493D Bearing is widely used in heavy machinery, such as construction equipment and mining tools, where its double-row design handles combined loads effectively. Its chrome steel construction ensures durability in demanding environments.

In automotive applications, 498-493D Bearing supports axle systems and wheel hubs, providing reliable performance under radial and thrust loads. The inch sizing makes it compatible with many North American vehicle models.

For industrial automation, 498-493D Bearing is a solid choice for conveyor systems and robotic arms, thanks to its open design and ease of lubrication. The standard radial clearance allows for smooth operation in varied conditions.

Where Is 498-493D Bearing Used?
You’ll often find 498-493D Bearing in agricultural machinery, where its tapered roller design handles heavy loads and rough terrain. The steel cage adds extra strength for long-lasting performance.

In wind turbines, 498-493D Bearing plays a key role in gearbox systems, ensuring smooth rotation under high stress. Its temperature range suits both cold and moderately hot climates.

Built for Heavy-Duty Use: 498-493D Bearing
The 498-493D Bearing excels in railway applications, particularly in bogie systems, where its combined load capacity is essential. The ABEC-1 rating ensures consistent precision.

For marine equipment, 498-493D Bearing’s corrosion-resistant materials make it ideal for propeller shafts and winches. Its dynamic radial rating ensures reliability even in saltwater conditions.

Automotive vs Aerospace: Applications of 498-493D Bearing
In automotive settings, 498-493D Bearing is common in truck differentials, offering robust performance. For aerospace, its precision suits landing gear systems, though specialised bearings often take precedence.

In general machinery, 498-493D Bearing fits well in pumps and compressors, while heavy-duty industrial presses benefit from its high load capacity. The inch measurements simplify replacements.

Q&A

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