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14139X-14276D TDO (Two-Row Double-Outer Race) (Imperial)

14139X-14276D TDO (Two-Row Double-Outer Race) (Imperial)

The 14139X-14276D is a double-row tapered roller bearing with a 1.378″ bore and 2.717″ outer diameter, built from sturdy chrome steel. It handles combined loads up to 21400 lbf and is designed for long-lasting performance.

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

This model is part of the 14000 series, with standard radial clearance and ABEC-1 rating. Ideal for heavy-duty applications like axles or industrial gearboxes where combined loads are common.

Weighing 1.51 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards for safe use.

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Product Parameters

  • Part Number 14139X-14276D
  • Brand TFL
  • Size 1.378" x 2.717" x 0.771"
  • Bore Dia 1.378"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 2.717"
  • Outer Dia Tolerance +0.001" to 0
  • Double Cup Width 1.5"
  • Double Cup Width Tolerance +0.003" to -0.01
  • Cone Width 0.771"
  • Cone Width Tolerance +0.002" to -0.01
  • Bearing Width Across Cups 1.8126"
  • Bearing Width Across Cups Tolerance +0.008" to 0
  • Cup Backface ToClear Radius 0.03"
  • Cone Backface Backing Diameter 1.85"
  • Cup Frontface Backing Diameter 2.52"
  • Cage Cone Backface Clearance 0.02"
  • Dynamic Radial Load 21400 lbf
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 14139X
  • Cup Part Number 14276D
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Double Row
  • Seal Type Open
  • Cups Type Standard
  • Series 14000
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Rating(One Row 90 Million Revolutions) 3180 lbf
  • Dynamic Thrust Rating(90 Million Revolutions) 2080 lbf
  • Dynamic Radial Rating(Two Row 90 Million Revolutions) 5540 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 1.51 lb

Features

Performance Features of 14139X-14276D Bearing

14139X-14276D Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 21400 lbf, ensuring reliable performance in heavy-duty applications.
The double-row tapered roller design enhances stability and load distribution.
With a temperature range of -30° to 110°C, it performs well in various conditions.

How Is 14139X-14276D Bearing Engineered for Reliability?

14139X-14276D Bearing features a steel cage that maintains roller alignment, reducing wear and extending service life.
The standard radial clearance option allows for flexibility in different applications.
Its ABEC-1 rating ensures consistent precision and smooth operation.
The open seal design simplifies maintenance while providing adequate protection.

Designed for Durability: 14139X-14276D Bearing

14139X-14276D Bearing’s double-row construction provides excellent load-carrying capacity and stability.
The chrome steel rollers and rings resist wear, ensuring long-lasting performance.
With a dynamic radial rating of 5540 lbf for two rows, it handles demanding conditions with ease.
The bearing’s standard lubrication requirement ensures smooth operation over time.

Application

Industrial Uses of 14139X-14276D Bearing
14139X-14276D Bearing is commonly used in heavy machinery, such as construction equipment and agricultural vehicles, where its double-row design handles combined radial and thrust loads efficiently. The chrome steel construction ensures durability in demanding environments.

Where Is 14139X-14276D Bearing Used?
You’ll often find 14139X-14276D Bearing in automotive applications like truck wheel hubs, where its tapered roller design provides smooth rotation under heavy loads. The inch sizing makes it a good fit for North American machinery standards.

Built for Heavy-Duty Use: 14139X-14276D Bearing
14139X-14276D Bearing excels in industrial gearboxes, offering reliable performance even under high stress. Its open seal type allows for easy lubrication, extending service life in continuous operation.

Automotive vs Aerospace: Applications of 14139X-14276D Bearing
In automotive settings, 14139X-14276D Bearing supports axles and transmissions, while in aerospace, it’s used in auxiliary systems requiring precise load handling. The steel cage adds stability in both scenarios.

Key Fields for 14139X-14276D Bearing
14139X-14276D Bearing is ideal for mining equipment, where its robust design withstands harsh conditions. The standard radial clearance ensures consistent performance across temperature variations.

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