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18685-18620DC TDO (Two-Row Double-Outer Race) (Imperial)

18685-18620DC TDO (Two-Row Double-Outer Race) (Imperial)

The 18685-18620DC is a double-row tapered roller bearing with a 1.75″ bore and 3.125″ outer diameter, built from sturdy chrome steel. It handles combined loads up to 20400 lbf and is designed for long-lasting performance in demanding conditions.

Its open design allows for easy lubrication, while the steel cage ensures smooth operation. The bearing can withstand temperatures from -30°C to 110°C, making it versatile for various environments.

This model features a standard radial clearance and is ABEC-1 rated for reliable precision. Ideal for heavy-duty applications like industrial machinery or vehicle axles where combined loads are common.

Weighing 1.66 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it’s a safe choice for most industrial settings.

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Product Parameters

  • Part Number 18685-18620DC
  • Brand TFL
  • Size 1.75" x 3.125" x 0.6875"
  • Bore Dia 1.75"
  • 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 2.13"
  • 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 18685
  • 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 1.66 lb

Features

How Is 18685-18620DC Bearing Engineered for Reliability?

18685-18620DC Bearing features a double-row tapered roller design, providing strong resistance to combined radial and thrust loads.
Its chrome steel construction ensures durability, with a dynamic radial load capacity of 20,400 lbf.

The precision-engineered cage keeps rollers aligned, reducing friction and extending service life.
With a temperature range of -30° to 110°C, it performs reliably in various conditions.

18685-18620DC Bearing’s standard radial clearance offers flexibility for different applications.
Its open design simplifies lubrication, ensuring smooth operation over time.

Application

Industrial Uses of 18685-18620DC Bearing
18685-18620DC 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 effectively. The chrome steel construction ensures durability in tough working conditions.

Where Is 18685-18620DC Bearing Used?
You’ll find 18685-18620DC Bearing in automotive applications like truck wheel hubs, where its tapered roller design provides stability under heavy loads. The inch sizing makes it a good fit for American-made vehicles.

Built for Heavy-Duty Use: 18685-18620DC Bearing
18685-18620DC Bearing excels in industrial gearboxes, offering reliable performance even under continuous operation. Its open design allows for easy lubrication, extending the bearing’s service life.

Automotive vs Aerospace: Applications of 18685-18620DC Bearing
In automotive systems, 18685-18620DC Bearing supports high-load components like axles and differentials. While not typically used in aerospace, its precision makes it suitable for ground support equipment.

Key Fields for 18685-18620DC Bearing
18685-18620DC Bearing is a go-to choice for mining equipment, where its robust construction withstands harsh environments. The standard radial clearance ensures smooth operation in varying temperatures.

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