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

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

The 14139-14276D is a two-row tapered roller bearing with a 1.377″ 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 in demanding conditions.

Its double-row construction provides extra stability, while the open design allows for easy lubrication. The bearing operates smoothly in temperatures ranging from -30°C to 110°C.

This model is part of the 14000 series, featuring standard cups and a steel cage for durability. It’s ideal for heavy-duty applications like industrial gearboxes or vehicle axles where combined loads are common.

Weighing 1.52 lb, it’s a robust choice for machinery requiring reliable performance. Compliant with RoHS and REACH standards, it’s a safe and dependable option for various industrial uses.

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Product Parameters

  • Part Number 14139-14276D
  • Brand TFL
  • Size 1.377" x 2.717" x 0.771"
  • Bore Dia 1.377"
  • 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 1.67"
  • 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 14139
  • 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 1.52 lb

Features

How Is 14139-14276D Bearing Engineered for Reliability?

14139-14276D Bearing features a double-row tapered roller design, providing robust support for combined radial and thrust loads.
Its chrome steel construction ensures durability, even under dynamic radial loads up to 21,400 lbf.
The precision tolerances on bore and outer diameters enhance alignment, reducing wear over time.
With a standard radial clearance, it offers reliable performance across a temperature range of -30° to 110°C.

What Makes 14139-14276D Bearing Suitable for High-Temperature Applications?

14139-14276D Bearing is built with chrome steel rings and rollers, capable of withstanding temperatures up to 110°C.
The open seal design allows for effective lubrication, maintaining smooth operation in demanding conditions.
Its double-row construction distributes loads evenly, reducing heat buildup.
This makes it a dependable choice for industrial applications requiring consistent performance under thermal stress.

Designed for Durability: 14139-14276D Bearing

14139-14276D Bearing’s tapered roller design ensures long-lasting performance in heavy-duty applications.
The steel cage maintains roller alignment, minimising friction and extending service life.
With a dynamic radial rating of 5,540 lbf for two rows, it handles significant loads effortlessly.
Its standard radial clearance and ABEC-1 rating provide a balance of precision and durability.

Steel vs Ceramic Bearings: Strengths of 14139-14276D Bearing

14139-14276D Bearing uses chrome steel for both rollers and rings, offering excellent strength and wear resistance.
This material choice ensures reliable performance under high dynamic radial loads of 21,400 lbf.
Unlike ceramic bearings, it provides a cost-effective solution without compromising on durability.
The steel cage further enhances stability, making it ideal for industrial applications.

Application

Industrial Uses of 14139-14276D Bearing
14139-14276D 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 effectively. The chrome steel construction ensures durability even in demanding environments.

In automotive applications, 14139-14276D Bearing supports wheel hubs and drivetrain components, providing reliable performance under varying loads. Its inch sizing makes it a preferred choice for American and British vehicle models.

For industrial conveyor systems, 14139-14276D Bearing’s tapered roller design offers smooth operation and easy maintenance. The open seal type allows for straightforward lubrication, extending the bearing’s service life.

What Makes 14139-14276D Bearing a Preferred Choice?
14139-14276D Bearing is ideal for applications requiring high load capacity, such as mining equipment and gearboxes. Its standard radial clearance ensures consistent performance across different operating conditions.

The steel cage in 14139-14276D Bearing enhances stability, making it suitable for high-speed operations in manufacturing plants. Its compatibility with various lubrication methods adds to its versatility.

Built for Heavy-Duty Use: 14139-14276D Bearing
14139-14276D Bearing excels in environments with heavy loads and vibrations, such as railway axles and industrial pumps. The double-row configuration distributes stress evenly, reducing wear.

Its temperature range of -30° to 110°C makes 14139-14276D Bearing suitable for both hot and cold climates. The ABEC-1 rating ensures adequate precision for most industrial needs.

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