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43112-43319D TDO (Two-Row Double-Outer Race) (Imperial)

43112-43319D TDO (Two-Row Double-Outer Race) (Imperial)

The 43112-43319D is a two-row tapered roller bearing with a 1.125″ bore and 3.1875″ outer diameter, crafted from durable chrome steel. It handles combined loads up to 36000 lbf and is designed for long-lasting performance.

Its double-row construction provides stability under heavy radial and thrust loads, while the open design allows for easy lubrication. The steel cage ensures smooth operation even at high speeds.

This bearing fits well in industrial settings like gearboxes or heavy machinery where combined loads are common. It operates reliably in temperatures from -30°C to 110°C.

Weighing 2.94 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it’s a practical choice for replacements or new installations.

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Product Parameters

  • Part Number 43112-43319D
  • Brand TFL
  • Size 1.125" x 3.1875" x 0.9478"
  • Bore Dia 1.125"
  • 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 1.67"
  • 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 43112
  • 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 2.940 lb

Features

How Is 43112-43319D Bearing Engineered for Reliability?

43112-43319D Bearing features a double-row tapered roller design, providing robust support for combined radial and thrust loads.
Its chrome steel construction ensures durability and resistance to wear in demanding applications.
The dynamic radial load capacity reaches 36,000 lbf, making it suitable for heavy-duty operations.
With a standard radial clearance and ABEC-1 rating, it balances precision and performance.

What Makes 43112-43319D Bearing Suitable for High-Temperature Applications?

43112-43319D Bearing operates efficiently in temperatures ranging from -30° to 110 °C, maintaining performance under varying conditions.
The chrome steel rollers and rings enhance heat resistance, ensuring long-term reliability.
Its open design allows for effective lubrication, reducing friction and heat buildup.
This makes it ideal for applications where temperature fluctuations are common.

Designed for Durability: 43112-43319D Bearing

43112-43319D Bearing is built with high-quality chrome steel, offering excellent strength and wear resistance.
The double-row tapered roller design distributes loads evenly, extending the bearing’s service life.
Its standard radial clearance ensures smooth operation, even under heavy loads.
With a weight of 2.940 lb, it provides a sturdy yet manageable solution for industrial use.

Application

Industrial Uses of 43112-43319D Bearing
The 43112-43319D Bearing is commonly used in heavy machinery, such as construction equipment and mining tools, where its double-row design handles combined radial and thrust loads effectively.
Its chrome steel construction ensures durability in demanding environments, making it a reliable choice for long-term use.

What Makes 43112-43319D Bearing a Preferred Choice?
In automotive applications, 43112-43319D Bearing supports wheel hubs and drivetrains, providing smooth performance under high stress.
The inch sizing makes it compatible with many North American vehicle models, offering versatility for repairs and upgrades.

Built for Heavy-Duty Use: 43112-43319D Bearing
For industrial fans and pumps, 43112-43319D Bearing’s tapered roller design ensures stable operation even at high speeds.
The open seal type allows for easy lubrication, extending the bearing’s service life in continuous-use scenarios.

Automotive vs Aerospace: Applications of 43112-43319D Bearing
In automotive systems, 43112-43319D Bearing excels in transmissions and axles, where its combined load capacity is essential.
While not typically used in aerospace, its robust design makes it suitable for ground support equipment and heavy-duty transport vehicles.

Key Fields for 43112-43319D Bearing
Agricultural machinery benefits from 43112-43319D Bearing’s ability to withstand dirt and debris while maintaining performance.
The standard radial clearance option ensures compatibility with a wide range of equipment, reducing downtime for maintenance.

Q&A

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