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15120A-15251D TDO (Two-Row Double-Outer Race) (Imperial)

15120A-15251D TDO (Two-Row Double-Outer Race) (Imperial)

The 15120A-15251D is a double-row tapered roller bearing with a 1.188″ bore and 2.5″ outer diameter, built from sturdy chrome steel. It handles combined loads up to 23400 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 ranging from -30°C to 110°C, making it versatile for various environments.

This model is part of the 15000 series and comes with standard cups for straightforward installation. Ideal for heavy-duty applications like industrial machinery or vehicle axles where combined loads are common.

Weighing 1.4 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 15120A-15251D
  • Brand TFL
  • Size 1.188" x 2.5" x 0.8125"
  • Bore Dia 1.188"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 2.5"
  • Outer Dia Tolerance +0.001" to 0
  • Double Cup Width 1.4375"
  • Double Cup Width Tolerance +0.003" to -0.01
  • Cone Width 0.8125"
  • Cone Width Tolerance +0.002" to -0.01
  • Bearing Width Across Cups 1.8124"
  • Bearing Width Across Cups Tolerance +0.008" to 0
  • Cup Backface ToClear Radius 0.03"
  • Cone Backface Backing Diameter 1.4"
  • Cup Frontface Backing Diameter 2.34"
  • Cage Cone Backface Clearance 0.03"
  • Dynamic Radial Load 23400 lbf
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 15120A
  • Cup Part Number 15251D
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Double Row
  • Seal Type Open
  • Cups Type Standard
  • Series 15000
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Rating(One Row 90 Million Revolutions) 3490 lbf
  • Dynamic Thrust Rating(90 Million Revolutions) 2090 lbf
  • Dynamic Radial Rating(Two Row 90 Million Revolutions) 6080 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 1.400 lb

Features

How Is 15120A-15251D Bearing Engineered for Reliability?

15120A-15251D 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 23,400 lbf.

The precision-engineered cage keeps the rollers aligned, reducing friction and extending service life.

With a temperature range of -30° to 110°C, it performs reliably in various operating conditions.

Application

Industrial Uses of 15120A-15251D Bearing
The 15120A-15251D Bearing is commonly used in heavy machinery like construction equipment and agricultural vehicles, where its double-row design handles combined radial and thrust loads efficiently.
Its chrome steel construction ensures durability in demanding environments, making it a reliable choice for long-term use.

Where Is 15120A-15251D Bearing Used?
You’ll often find the 15120A-15251D Bearing in automotive applications, particularly in wheel hubs and differential systems, where its tapered roller design provides smooth performance.
The inch sizing makes it compatible with many North American vehicle models, offering versatility across different brands.

Built for Heavy-Duty Use: 15120A-15251D Bearing
This bearing excels in industrial settings like conveyor systems and mining equipment, where its high dynamic load capacity is essential.
The open seal design allows for easy lubrication, ensuring consistent performance even under heavy stress.

Automotive vs Aerospace: Applications of 15120A-15251D Bearing
In automotive systems, the 15120A-15251D Bearing supports wheel assemblies and transmissions, thanks to its robust construction.
While not typically used in aerospace, its precision and reliability make it suitable for ground support equipment and other heavy-duty applications.

Practical Applications of 15120A-15251D Bearing
For industrial fans and pumps, the 15120A-15251D Bearing offers reliable performance with its standard radial clearance and ABEC-1 rating.
Its steel cage and chrome steel rollers ensure longevity, even in high-speed or high-load scenarios.

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