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TS (Single Row Tapered Roller Bearings) (Imperial) 3875-3821

TS (Single Row Tapered Roller Bearings) (Imperial) 3875-3821

The 3875-3821 is a single-row tapered roller bearing with a 1.5″ bore and 3.375″ outer diameter, crafted from sturdy chrome steel. It manages combined loads up to 27900 lbf radially and 4980 lbf thrust, suitable for demanding 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.

This model is interchangeable with Timken bearings, making it a practical choice for replacements. Ideal for use in heavy machinery or automotive systems where combined loads are common.

Weighing 1.9 lb, it offers a balance of strength and manageability. Compliant with RoHS and REACH standards for safe and reliable use.

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Product Parameters

  • Part Number 3875-3821
  • Brand TFL
  • Interchangeable Timken
  • Size 1.5" x 3.375" x 1.1876"
  • Bore Dia 1.5"
  • 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 1.91"
  • Cone Backface Backing Diameter 1.95"
  • 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 3875
  • 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 1.900 lb

Features

Performance Features of 3875-3821 Bearing

3875-3821 Bearing is constructed with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 27,900 lbf, ensuring reliable performance in various applications.

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

3875-3821 Bearing’s standard radial clearance allows for smooth operation under different conditions.
Its ABEC-1 rating ensures consistent precision for industrial use.

Application

Industrial Uses of 3875-3821 Bearing
The 3875-3821 Bearing is commonly used in heavy machinery like construction equipment and agricultural gear, where its tapered roller design handles combined loads efficiently.
Its chrome steel construction ensures durability even in demanding environments, making it a reliable choice for long-term use.

Where Is 3875-3821 Bearing Used?
You’ll often find the 3875-3821 Bearing in automotive applications, such as wheel hubs and differential systems, where its precision and strength are key.
The inch sizing makes it a perfect fit for North American vehicle models, ensuring easy compatibility.

Built for Heavy-Duty Use: 3875-3821 Bearing
In industrial settings like conveyor systems, the 3875-3821 Bearing excels due to its ability to manage both radial and thrust loads smoothly.
The open design allows for straightforward lubrication, which helps maintain performance over time.

Automotive vs Aerospace: Applications of 3875-3821 Bearing
While the 3875-3821 Bearing is popular in automotive wheel assemblies, it’s also suited for aerospace applications where reliability under stress is critical.
Its standard radial clearance options provide flexibility for different operational needs.

Key Fields for 3875-3821 Bearing
The 3875-3821 Bearing is a go-to for mining equipment, where its robust design handles extreme loads and harsh conditions.
The steel cage adds extra resilience, making it a practical choice for high-impact scenarios.

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