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43125-43319D TDO (Two-Row Double-Outer Race) (Imperial)

43125-43319D TDO (Two-Row Double-Outer Race) (Imperial)

The 43125-43319D is a two-row tapered roller bearing with a 1.25″ bore and 3.1875″ outer diameter, built from sturdy chrome steel for long-lasting performance. It handles combined loads with a dynamic radial capacity of 36000 lbf, making it suitable for heavy-duty applications.

Its double-row design provides stability under high radial and thrust loads, while the open seal allows for easy lubrication. The bearing operates smoothly in temperatures ranging from -30°C to 110°C.

This model features standard radial clearance and is ABEC-1 rated for reliable precision. The steel cage ensures durability, and its imperial sizing makes it compatible with many industrial systems.

Ideal for machinery requiring robust load support, such as gearboxes or conveyor systems. Weighing 2.81 lb, it’s a solid choice for demanding environments. Compliant with RoHS and REACH standards for safe use.

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Product Parameters

  • Part Number 43125-43319D
  • Brand TFL
  • Size 1.25" x 3.1875" x 0.9478"
  • Bore Dia 1.25"
  • 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 1.73"
  • 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 43125
  • 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 2.81 lb

Features

Performance Features of 43125-43319D Bearing

43125-43319D 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 heavy-duty applications.

The double-row tapered roller design distributes loads evenly, reducing wear and extending service life.
With a standard radial clearance, it provides smooth operation in various conditions.

43125-43319D Bearing operates efficiently within a temperature range of -30° to 110°C.
The steel cage maintains roller alignment, enhancing durability and reducing maintenance needs.

This bearing is designed for applications requiring both radial and thrust load support.
Its inch measurements make it suitable for imperial system machinery and equipment.

Application

Industrial Uses of 43125-43319D Bearing
43125-43319D 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.

What Makes 43125-43319D Bearing a Preferred Choice?
In automotive applications, 43125-43319D Bearing supports wheel hubs and differential systems, providing reliable performance under varying loads. Its inch sizing makes it compatible with many North American vehicle models.

Built for Heavy-Duty Use: 43125-43319D Bearing
For industrial conveyor systems, 43125-43319D Bearing’s tapered roller design offers smooth operation and long service life. The open seal type allows for easy lubrication, reducing maintenance downtime.

Automotive vs Aerospace: Applications of 43125-43319D Bearing
While 43125-43319D Bearing excels in automotive wheel assemblies, it’s also suitable for aerospace landing gear components, where precision and reliability are critical. The steel cage enhances stability under high stress.

Key Fields for 43125-43319D Bearing
In mining equipment, 43125-43319D Bearing’s robust construction withstands harsh conditions, such as dust and heavy loads. The standard radial clearance ensures consistent performance over time.

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