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TS (Single Row Tapered Roller Bearings) (Imperial) 3877-3820

TS (Single Row Tapered Roller Bearings) (Imperial) 3877-3820

The 3877-3820 is a single-row tapered roller bearing with a 1.625″ 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 under heavy use. The bearing operates smoothly in temperatures from -30°C to 110°C.

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

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

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Product Parameters

  • Part Number 3877-3820
  • Brand TFL
  • Interchangeable Timken
  • Size 1.625" x 3.375" x 1.1875"
  • Bore Dia 1.625"
  • 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 1.1875"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.14"
  • Cup Backface ToClear Radius 0.130"
  • Cone Frontface Backing Diameter 1.98"
  • Cone Backface Backing Diameter 2.24"
  • 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 3877
  • 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 1.8 lb

Features

Performance Features of 3877-3820 Bearing

3877-3820 Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 27,900 lbf, ensuring reliable performance in various applications.
The steel cage maintains proper roller alignment, reducing friction and extending service life.
With a standard radial clearance, it provides flexibility for different operational needs.

How Is 3877-3820 Bearing Engineered for Reliability?

3877-3820 Bearing features a single-row tapered roller design, ideal for handling both radial and thrust loads.
The chrome steel construction ensures durability and resistance to wear in demanding conditions.
Its effective center location of -0.32″ enhances stability and load distribution.
Operating within a temperature range of -30° to 110°C, it performs reliably in various environments.

Built for Durability: 3877-3820 Bearing

3877-3820 Bearing’s tapered roller design provides excellent load-carrying capacity and long service life.
The chrome steel rollers and rings are hardened for increased resistance to wear and fatigue.
With a static radial load rating of 33,200 lbf, it handles heavy-duty applications with ease.
Its open design allows for easy lubrication, ensuring smooth operation over time.

Steel vs Ceramic Bearings: Strengths of 3877-3820 Bearing

3877-3820 Bearing uses chrome steel for both rollers and rings, offering a balance of strength and affordability.
This material choice ensures reliable performance under high dynamic and static loads.
The steel cage provides robust support, maintaining roller alignment during operation.
Its ABEC-1 rating guarantees consistent precision for most industrial applications.

Application

Industrial Uses of 3877-3820 Bearing
3877-3820 Bearing is commonly used in heavy machinery like construction equipment and agricultural gear, where its tapered roller design handles combined radial and thrust loads efficiently. The chrome steel construction ensures durability even in tough working conditions.

Where Is 3877-3820 Bearing Used?
You’ll often find 3877-3820 Bearing in automotive applications, particularly in wheel hubs and differential systems. Its precise inch sizing makes it a reliable choice for older or custom vehicle models.

Built for Heavy-Duty Use: 3877-3820 Bearing
3877-3820 Bearing excels in industrial fans and pumps, thanks to its open design and steel cage. The standard radial clearance allows for smooth operation under varying load conditions.

Automotive vs Aerospace: Applications of 3877-3820 Bearing
In automotive settings, 3877-3820 Bearing supports drivetrain components, while its aerospace use is limited due to weight constraints. The ABEC-1 rating ensures consistent performance for general machinery.

Essential Roles of 3877-3820 Bearing
3877-3820 Bearing is a go-to for conveyor systems in mining and manufacturing. Its dynamic radial load capacity of 27,900 lbf makes it suitable for high-stress environments.

Q&A

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