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18690-18620DC TDO (Two-Row Double-Outer Race) (Imperial)

18690-18620DC TDO (Two-Row Double-Outer Race) (Imperial)

The 18690-18620DC is a double-row tapered roller bearing with a 1.8125″ bore and 3.125″ outer diameter, built from sturdy chrome steel. It handles combined loads well, with a dynamic radial load capacity of 20400 lbf, making it suitable for heavy-duty applications.

Its open design allows for easy lubrication, while the steel cage ensures durability. The bearing operates smoothly in temperatures ranging from -30°C to 110°C, ideal for varied environments.

This model is part of the 18600 series and comes with standard cups for straightforward installation. It’s a reliable choice for machinery requiring robust performance under radial and thrust loads.

Weighing 1.59 lb, it’s a solid yet manageable option for industrial use. Compliant with RoHS and REACH standards, it meets safety and environmental requirements.

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Product Parameters

  • Part Number 18690-18620DC
  • Brand TFL
  • Size 1.8125" x 3.125" x 0.6875"
  • Bore Dia 1.8125"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 3.125"
  • Outer Dia Tolerance +0.001" to 0
  • Double Cup Width 1.3125"
  • Double Cup Width Tolerance +0.003" to -0.01
  • Cone Width 0.6875"
  • Cone Width Tolerance +0.002" to -0.01
  • Bearing Width Across Cups 1.6248"
  • Bearing Width Across Cups Tolerance +0.008" to 0
  • Cup Backface ToClear Radius 0.03"
  • Cone Backface Backing Diameter 2.2"
  • Cup Frontface Backing Diameter 2.94"
  • Cage Cone Backface Clearance 0.01"
  • Dynamic Radial Load 20400 lbf
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 18690
  • Cup Part Number 18620DC
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Double Row
  • Seal Type Open
  • Cups Type Standard
  • Series 18600
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Rating(One Row 90 Million Revolutions) 3030 lbf
  • Dynamic Thrust Rating(90 Million Revolutions) 1940 lbf
  • Dynamic Radial Rating(Two Row 90 Million Revolutions) 5280 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 1.59 lb

Features

How Is 18690-18620DC Bearing Engineered for Reliability?

18690-18620DC Bearing features a double-row tapered roller design, providing strong resistance to combined loads.
Its chrome steel construction ensures durability, with a dynamic radial load capacity of 20,400 lbf.
The open seal type allows for easy lubrication, maintaining smooth operation in various conditions.
With a temperature range of -30° to 110°C, it performs reliably in diverse environments.

What Makes 18690-18620DC Bearing Suitable for Heavy-Duty Applications?

18690-18620DC Bearing’s double-row design enhances load distribution, reducing stress on individual rollers.
The chrome steel rollers and rings offer excellent wear resistance, extending the bearing’s service life.
Its standard radial clearance ensures consistent performance, even under heavy loads.
The bearing’s ABEC-1 rating guarantees precision and reliability in industrial applications.

Designed for Durability: 18690-18620DC Bearing

18690-18620DC Bearing is built with high-quality chrome steel, ensuring long-lasting performance.
Its tapered roller design efficiently handles both radial and thrust loads, making it versatile.
The steel cage maintains proper roller alignment, reducing friction and wear.
With a wide operating temperature range, it adapts to various working conditions.

Application

Industrial Uses of 18690-18620DC Bearing
18690-18620DC 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 even in demanding environments.

Where Is 18690-18620DC Bearing Used?
You’ll often find 18690-18620DC Bearing in automotive applications like truck wheel hubs, where its tapered roller design provides smooth performance under heavy loads. The inch sizing makes it a popular choice for North American vehicle manufacturers.

Built for Heavy-Duty Use: 18690-18620DC Bearing
18690-18620DC Bearing excels in industrial gearboxes, offering reliable performance under high stress. Its open design allows for easy lubrication, extending service life in continuous operation scenarios.

Automotive vs Aerospace: Applications of 18690-18620DC Bearing
In automotive systems, 18690-18620DC Bearing supports wheel hubs and axles, while in aerospace, it’s used in landing gear assemblies. The bearing’s standard radial clearance ensures consistent performance across different load conditions.

Practical Applications of 18690-18620DC Bearing
18690-18620DC Bearing is ideal for conveyor systems in mining operations, where its robust construction withstands abrasive environments. The steel cage adds stability, making it suitable for high-vibration settings.

Q&A

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