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43131-43319D TDO (Two-Row Double-Outer Race) (Imperial)

43131-43319D TDO (Two-Row Double-Outer Race) (Imperial)

The 43131-43319D is a two-row tapered roller bearing with a 1.3125″ bore and 3.1875″ outer diameter, built from sturdy chrome steel. It handles combined loads up to 36000 lbf and is designed for long-lasting performance.

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 43000 series, featuring standard cups and a steel cage for durability. It’s ideal for heavy-duty applications like axles or industrial gearboxes where combined loads are common.

Weighing 2.73 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 43131-43319D
  • Brand TFL
  • Size 1.3125" x 3.1875" x 0.9478"
  • Bore Dia 1.3125"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 3.1875"
  • Outer Dia Tolerance +0.001" to 0
  • Double Cup Width 1.5625"
  • Double Cup Width Tolerance +0.003" to -0.01
  • Cone Width 0.9478"
  • Cone Width Tolerance +0.002" to -0.01
  • Bearing Width Across Cups 2.1875"
  • Bearing Width Across Cups Tolerance +0.008" to 0
  • Cup Backface ToClear Radius 0.06"
  • Cone Backface Backing Diameter 2.01"
  • Cup Frontface Backing Diameter 2.94"
  • Cage Cone Backface Clearance 0.1"
  • Dynamic Radial Load 36000 lbf
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 43131
  • Cup Part Number 43319D
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Double Row
  • Seal Type Open
  • Cups Type Standard
  • Series 43000
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Rating(One Row 90 Million Revolutions) 5360 lbf
  • Dynamic Thrust Rating(90 Million Revolutions) 6130 lbf
  • Dynamic Radial Rating(Two Row 90 Million Revolutions) 9340 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 2.73 lb

Features

Performance Features of 43131-43319D Bearing

43131-43319D Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 36,000 lbf, ensuring reliable performance in demanding conditions.
The double-row tapered roller design distributes loads evenly, enhancing durability and stability.

How Is 43131-43319D Bearing Engineered for Reliability?

43131-43319D Bearing features precise tolerances, with bore diameter tolerance of +0.005″ to 0.
The steel cage maintains roller alignment, reducing friction and extending operational life.
With a temperature range of -30° to 110°C, it performs well in varied environments.

Built for Durability: 43131-43319D Bearing

43131-43319D Bearing’s double-row construction handles both radial and thrust loads efficiently.
Its dynamic thrust rating of 6,130 lbf ensures smooth operation under heavy loads.
The standard radial clearance option provides flexibility for different applications.

Steel vs Ceramic Bearings: Strengths of 43131-43319D Bearing

43131-43319D Bearing uses chrome steel for rings and rollers, balancing strength and cost-effectiveness.
The open design allows for easy lubrication, maintaining performance over time.
Weighing 2.73 lb, it offers a robust solution without excessive bulk.

Application

Industrial Uses of 43131-43319D Bearing
43131-43319D Bearing is commonly used in heavy machinery, such as construction equipment and mining rigs, where its double-row design handles combined radial and thrust loads efficiently. The chrome steel construction ensures durability in harsh operating conditions.

Where Is 43131-43319D Bearing Used?
You’ll often find 43131-43319D Bearing in agricultural machinery, like tractors and harvesters, where its tapered roller design provides reliable performance under varying loads. The inch sizing makes it a good fit for North American equipment.

Built for Heavy-Duty Use: 43131-43319D Bearing
43131-43319D Bearing excels in industrial gearboxes, offering smooth operation even under high stress. Its open design allows for easy lubrication, extending service life in demanding applications.

Automotive vs Aerospace: Applications of 43131-43319D Bearing
In automotive systems, 43131-43319D Bearing supports wheel hubs and differentials, while in aerospace, it’s used in landing gear mechanisms. The ABEC-1 rating ensures consistent precision for both industries.

Perfect Fit for Automation: 43131-43319D Bearing
43131-43319D Bearing is ideal for robotic arms and conveyor systems in automated factories. Its standard radial clearance and steel cage provide stability and reduce maintenance needs.

Q&A

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