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3783-3729D TDO (Two-Row Double-Outer Race) (Imperial)

3783-3729D TDO (Two-Row Double-Outer Race) (Imperial)

The 3783-3729D is a two-row tapered roller bearing with a 1.75″ bore and 3.6718″ outer diameter, crafted from sturdy chrome steel. It handles combined loads up to 47800 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 efficiently in temperatures ranging from -30°C to 110°C.

This double-row construction provides extra stability, making it suitable for heavy-duty applications like industrial gearboxes or axle systems. It meets RoHS and REACH standards for safe use.

Weighing 4.38 lb, it’s a robust choice for machinery requiring reliable load support. The standard radial clearance ensures easy installation and maintenance.

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Product Parameters

  • Part Number 3783-3729D
  • Brand TFL
  • Size 1.75" x 3.6718" x 1.193"
  • Bore Dia 1.75"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 3.6718"
  • Outer Dia Tolerance +0.001" to 0
  • Double Cup Width 2.0625"
  • Double Cup Width Tolerance +0.003" to -0.01
  • Cone Width 1.193"
  • Cone Width Tolerance +0.002" to -0.01
  • Bearing Width Across Cups 2.5625"
  • Bearing Width Across Cups Tolerance +0.008" to 0
  • Cup Backface ToClear Radius 0.03"
  • Cone Backface Backing Diameter 2.52"
  • Cup Frontface Backing Diameter 3.50"
  • Cage Cone Backface Clearance 0.06"
  • Dynamic Radial Load 47800 lbf
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 3783
  • Cup Part Number 3729D
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Double Row
  • Seal Type Open
  • Cups Type Standard
  • Series 3700
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Rating(One Row 90 Million Revolutions) 7120 lbf
  • Dynamic Thrust Rating(90 Million Revolutions) 4120 lbf
  • Dynamic Radial Rating(Two Row 90 Million Revolutions) 12400 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 4.38 lb

Features

Performance Features of 3783-3729D Bearing

3783-3729D Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 47,800 lbf, ensuring reliable performance in demanding conditions.
The double-row tapered roller design distributes loads evenly, enhancing durability and stability.
With a standard radial clearance, it provides smooth operation across various applications.

How Is 3783-3729D Bearing Engineered for Reliability?

3783-3729D Bearing features a steel cage that maintains roller alignment, reducing friction and wear.
The tapered roller design handles both radial and thrust loads efficiently, making it versatile.
Its chrome steel construction ensures long-lasting performance even in harsh environments.
The bearing operates smoothly within a temperature range of -30° to 110°C.

Built for Durability: 3783-3729D Bearing

3783-3729D Bearing’s double-row construction increases load capacity and extends service life.
The precision-machined chrome steel components resist wear, reducing maintenance needs.
Its open design allows for easy lubrication, ensuring consistent performance.
With an ABEC-1 rating, it balances precision and affordability for industrial use.

Steel vs Ceramic Bearings: Strengths of 3783-3729D Bearing

3783-3729D Bearing uses chrome steel for its rollers and rings, providing excellent strength and durability.
The steel cage ensures reliable roller positioning, even under heavy combined loads.
Its design is optimised for industrial applications where cost-effectiveness matters.
The bearing’s standard radial clearance makes it suitable for a wide range of machinery.

Application

Industrial Uses of 3783-3729D Bearing
The 3783-3729D Bearing is commonly used in heavy machinery, such as construction equipment and mining vehicles, where its double-row design handles combined radial and thrust loads efficiently.
Its chrome steel construction ensures durability in demanding environments, making it a reliable choice for long-term use.

Where Is 3783-3729D Bearing Used?
You’ll often find the 3783-3729D Bearing in automotive applications like truck wheel hubs, where its tapered roller design provides smooth performance under heavy loads.
The inch sizing makes it compatible with many North American vehicle models, offering versatility for repairs and upgrades.

Built for Heavy-Duty Use: 3783-3729D Bearing
In industrial settings, the 3783-3729D Bearing excels in conveyor systems and gearboxes, thanks to its robust steel cage and high dynamic load capacity.
The open seal design allows for easy lubrication, ensuring consistent performance even in high-temperature conditions.

Automotive vs Aerospace: Applications of 3783-3729D Bearing
While the 3783-3729D Bearing is popular in trucks and off-road vehicles, its precision also suits aerospace applications like landing gear systems.
The ABEC-1 rating ensures reliable performance, whether on the road or in the air.

Key Fields for 3783-3729D Bearing
For agricultural machinery, the 3783-3729D Bearing provides dependable support in tractors and harvesters, handling both radial and axial forces.
Its standard radial clearance options make it adaptable to various operational needs, from light to heavy loads.

Q&A

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