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48393A-48320D TDO (Two-Row Double-Outer Race) (Imperial)

48393A-48320D TDO (Two-Row Double-Outer Race) (Imperial)

The 48393A-48320D is a double-row tapered roller bearing with a 5.375″ bore and 7.5″ outer diameter, built from sturdy chrome steel for heavy-duty use. It handles combined loads up to 111,000 lbf and is designed for long-lasting performance in demanding conditions.

Its open design allows for 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 48300 series and comes with standard cups for straightforward installation. Ideal for industrial machinery or heavy equipment where high radial and thrust loads are common.

Weighing 15.23 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it’s a reliable choice for replacements or new installations.

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Product Parameters

  • Part Number 48393A-48320D
  • Brand TFL
  • Size 5.375" x 7.5" x 1.5625"
  • Bore Dia 5.375"
  • Bore Dia Tolerance +0.001" to 0
  • Outer Dia 7.5"
  • Outer Dia Tolerance +0.001" to 0
  • Double Cup Width 2.875"
  • Double Cup Width Tolerance +0.003" to -0.01
  • Cone Width 1.5625"
  • Cone Width Tolerance +0.002" to -0.01
  • Bearing Width Across Cups 3.3749"
  • Bearing Width Across Cups Tolerance +0.014" to -0.01"
  • Cup Backface ToClear Radius 0.03"
  • Cone Backface Backing Diameter 6.1"
  • Cup Frontface Backing Diameter 7.28"
  • Cage Cone Backface Clearance 0.09"
  • Dynamic Radial Load 111000 lbf
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 48393A
  • Cup Part Number 48320D
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Double Row
  • Seal Type Open
  • Cups Type Standard
  • Series 48300
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Rating(One Row 90 Million Revolutions) 16500 lbf
  • Dynamic Thrust Rating(90 Million Revolutions) 9060 lbf
  • Dynamic Radial Rating(Two Row 90 Million Revolutions) 28700 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 15.23 lb

Features

Engineered for Precision: 48393A-48320D Bearing

48393A-48320D Bearing features a double-row tapered roller design, ideal for handling combined radial and thrust loads.
Its chrome steel construction ensures durability and reliable performance under heavy loads.

The bearing’s dynamic radial load capacity reaches 111,000 lbf, making it suitable for demanding industrial applications.
Precision tolerances on bore and outer diameters ensure a perfect fit and smooth operation.

48393A-48320D Bearing operates efficiently within a temperature range of -30° to 110°C.
Its open design allows for easy lubrication, maintaining optimal performance over time.

With standard radial clearance options, this bearing offers flexibility for various operational needs.
The steel cage keeps rollers aligned, reducing wear and extending service life.

Application

Industrial Uses of 48393A-48320D Bearing
The 48393A-48320D Bearing is commonly used in heavy machinery, such as construction equipment and mining vehicles, where its double-row design handles combined radial and thrust loads effectively.
Its chrome steel construction ensures durability in harsh environments, making it a reliable choice for long-term use.

Where Is 48393A-48320D Bearing Used?
You’ll often find the 48393A-48320D Bearing in agricultural machinery, like tractors and harvesters, where its tapered roller design provides stability under heavy loads.
The standard radial clearance also allows for smooth operation in varying temperature conditions.

Built for Heavy-Duty Use: 48393A-48320D Bearing
This bearing excels in industrial gearboxes, supporting high torque and rotational speeds without compromising performance.
The open seal type simplifies lubrication, ensuring minimal downtime for maintenance.

Automotive vs Aerospace: Applications of 48393A-48320D Bearing
In automotive applications, the 48393A-48320D Bearing is ideal for wheel hubs and differentials, thanks to its combined load capacity.
For aerospace, its precision and reliability make it suitable for auxiliary systems, though it’s more commonly seen in ground-based heavy equipment.

Key Fields for 48393A-48320D Bearing
The 48393A-48320D Bearing is a go-to choice for railway applications, particularly in axle boxes where durability and load handling are critical.
Its inch sizing ensures compatibility with North American machinery, offering a practical solution for imperial system users.

Q&A

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