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TS (Single Row Tapered Roller Bearings) (Imperial) 3879-3821

TS (Single Row Tapered Roller Bearings) (Imperial) 3879-3821

The 3879-3821 is a single-row tapered roller bearing with a 1.57″ bore and 3.37″ 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 from -30°C to 110°C, suitable for demanding environments.

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

Weighing 1.8 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, ensuring safe and eco-friendly use.

The standard radial clearance and ABEC-1 rating provide dependable performance. Its tapered roller design ensures even load distribution, reducing wear over time.

Perfect for industrial settings requiring long-lasting, high-capacity bearings. The simple maintenance and sturdy build make it a practical choice for engineers and maintenance teams alike.

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Product Parameters

  • Part Number 3879-3821
  • Brand TFL
  • Interchangeable Timken
  • Size 1.5748" x 3.375" x 1.1876"
  • Bore Dia 1.5748"
  • 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 0.03"
  • Cup Backface ToClear Radius 0.050"
  • Cone Frontface Backing Diameter 1.97"
  • Cone Backface Backing Diameter 2.01"
  • Cup Frontface Backing Diameter 3.23"
  • Cup Backface Backing Diameter 2.95"
  • 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 3879
  • Cup Part Number 3821
  • 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 1.8 lb

Features

Performance Features of 3879-3821 Bearing

3879-3821 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, enhancing durability and reducing wear.
With a temperature range of -30° to 110°C, it performs reliably in various conditions.

How Is 3879-3821 Bearing Engineered for Reliability?

3879-3821 Bearing features precise cone and cup dimensions, ensuring smooth operation under combined loads.
The chrome steel construction provides excellent wear resistance, extending its service life.
Its standard radial clearance options allow for flexibility in different applications.
The open design simplifies lubrication, maintaining optimal performance over time.

Built for Durability: 3879-3821 Bearing

3879-3821 Bearing’s single-row tapered roller design handles both radial and thrust loads efficiently.
The steel cage maintains roller positioning, reducing friction and improving longevity.
With a static radial load capacity of 33,200 lbf, it excels in demanding environments.
Its ABEC-1 rating ensures consistent performance for industrial applications.

Application

Industrial Uses of 3879-3821 Bearing
The 3879-3821 Bearing is commonly used in heavy machinery like construction equipment, where its tapered roller design handles combined loads efficiently. Its chrome steel construction ensures durability in demanding environments.

Where Is 3879-3821 Bearing Used?
You’ll often find the 3879-3821 Bearing in agricultural machinery, such as tractors and harvesters, where its robust design supports high radial and thrust loads. The open seal type allows for easy lubrication, extending its service life.

Built for Heavy-Duty Use: 3879-3821 Bearing
In mining applications, the 3879-3821 Bearing excels due to its ability to withstand harsh conditions and heavy loads. The steel cage adds extra strength, making it reliable for continuous operation.

Automotive vs Aerospace: Applications of 3879-3821 Bearing
In automotive systems, the 3879-3821 Bearing is ideal for wheel hubs and differentials, offering smooth performance. For aerospace, its precision and load capacity make it suitable for auxiliary systems.

Essential Roles of 3879-3821 Bearing
The 3879-3821 Bearing plays a key role in industrial fans, where its tapered rollers reduce friction and improve efficiency. Its standard radial clearance ensures compatibility with various setups.

Q&A

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