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TS (Single Row Tapered Roller Bearings) (Imperial) 3872-3820

TS (Single Row Tapered Roller Bearings) (Imperial) 3872-3820

The 3872-3820 is a single-row tapered roller bearing with a 1.375″ bore and 3.375″ outer diameter, crafted from sturdy chrome steel. It handles combined loads up to 27900 lbf radially and 4980 lbf thrust, making it versatile for various applications.

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

This model is interchangeable with Timken bearings, offering a reliable replacement option. Ideal for heavy-duty machinery or automotive systems where combined loads are common.

Weighing just 2lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it’s a safe choice for industrial use. The standard radial clearance ensures easy installation and maintenance.

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Product Parameters

  • Part Number 3872-3820
  • Brand TFL
  • Interchangeable Timken
  • Size 1.375" x 3.375" x 1.1876"
  • Bore Dia 1.375"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 3.375"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 1.1875"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 0.9375"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 1.1876"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.14"
  • Cup Backface ToClear Radius 0.130"
  • Cone Frontface Backing Diameter 1.81"
  • Cone Backface Backing Diameter 2.09"
  • Cup Frontface Backing Diameter 3.23"
  • Cup Backface Backing Diameter 2.87"
  • Cage Cone Frontface Clearance 0.11"
  • Cage Cone Backface Clearance 0.04"
  • Effective Center Location -0.32"
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 3872
  • Cup Part Number 3820
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Cups Type Standard
  • Series 3800
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Load 27900 lbf
  • Static Radial Load 33200 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 7240 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 4980 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 lb

Features

Performance Features of 3872-3820 Bearing

3872-3820 Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 27,900 lbf, making it suitable for heavy-duty applications.

The steel cage ensures proper roller alignment, reducing friction and extending operational life.
With a temperature range of -30° to 110°C, it performs reliably in various environments.

3872-3820 Bearing’s standard radial clearance allows for smooth operation under different conditions.
Its tapered roller design efficiently handles both radial and thrust loads.

The open construction simplifies lubrication, ensuring consistent performance over time.
Weighing just 2 lb, it balances durability with ease of handling.

Application

Industrial Uses of 3872-3820 Bearing
3872-3820 Bearing is commonly used in heavy machinery like construction equipment, where its tapered roller design handles combined radial and thrust loads effectively. The chrome steel construction ensures durability even in demanding environments.

What Makes 3872-3820 Bearing a Preferred Choice?
In automotive applications, 3872-3820 Bearing supports wheel hubs and differential systems, thanks to its robust load capacity. The inch sizing makes it a convenient fit for many American-made vehicles.

Built for Heavy-Duty Use: 3872-3820 Bearing
For industrial conveyor systems, 3872-3820 Bearing’s open design allows easy lubrication, extending its service life. Its standard radial clearance ensures smooth operation under varying loads.

Automotive vs Aerospace: Applications of 3872-3820 Bearing
In automotive settings, 3872-3820 Bearing excels in transmissions, while its precision makes it suitable for aerospace landing gear components. The steel cage adds reliability in high-stress conditions.

Where Is 3872-3820 Bearing Used?
You’ll find 3872-3820 Bearing in agricultural machinery, where its tapered rollers manage uneven loads effortlessly. The ABEC-1 rating balances performance and cost for these applications.

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