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TS (Single Row Tapered Roller Bearings) (Imperial) 3980-3920

TS (Single Row Tapered Roller Bearings) (Imperial) 3980-3920

The 3980-3920 is a single-row tapered roller bearing with a 2.375″ bore and 4.4375″ outer diameter, crafted from sturdy chrome steel. It handles combined loads up to 31200 lbf radially and 5570 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 2.9 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 3980-3920
  • Brand TFL
  • Interchangeable Timken
  • Size 2.375" x 4.4375" x 1.1875"
  • Bore Dia 2.375"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 4.4375"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 1.183"
  • 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 2.68"
  • Cone Backface Backing Diameter 2.95"
  • Cup Frontface Backing Diameter 4.18"
  • Cup Backface Backing Diameter 3.90"
  • Cage Cone Frontface Clearance 0.08"
  • Cage Cone Backface Clearance 0.06"
  • Effective Center Location -0.18"
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 3980
  • Cup Part Number 3920
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Cups Type Standard
  • Series 3900
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Load 31200 lbf
  • Static Radial Load 43000 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 8090 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 5570 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 2.9 lb

Features

Performance Features of 3980-3920 Bearing

3980-3920 Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 31,200 lbf, ensuring reliable performance in heavy-duty 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 various environments.

How Is 3980-3920 Bearing Engineered for Reliability?

3980-3920 Bearing features a single-row tapered roller design, optimised for combined load handling.
The chrome steel construction provides durability, while the standard radial clearance ensures smooth operation.
Its dynamic thrust rating of 5,570 lbf makes it suitable for demanding industrial applications.
The open seal design allows for easy lubrication and maintenance.

Built for Durability: 3980-3920 Bearing

3980-3920 Bearing’s tapered roller design efficiently distributes loads, reducing stress on components.
The chrome steel material resists wear, maintaining performance over extended periods.
With a static radial load capacity of 43,000 lbf, it handles heavy loads with ease.
Its ABEC-1 rating ensures consistent precision in various applications.

Steel vs Ceramic Bearings: Strengths of 3980-3920 Bearing

3980-3920 Bearing uses chrome steel for both rollers and rings, balancing strength and cost-effectiveness.
This material choice provides excellent load capacity while maintaining good corrosion resistance.
The steel cage design ensures proper roller spacing for optimal performance.
With standard radial clearance options, it offers flexibility for different installation requirements.

Application

Industrial Uses of 3980-3920 Bearing
The 3980-3920 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.

Where Is 3980-3920 Bearing Used?
You’ll often find 3980-3920 Bearing in automotive applications, particularly in wheel hubs and differential systems. Its inch sizing makes it a reliable choice for American and British vehicle models.

Built for Heavy-Duty Use: 3980-3920 Bearing
This bearing excels in industrial settings like conveyor systems and mining equipment, thanks to its high dynamic radial load capacity. The open design allows for easy lubrication and maintenance.

Automotive vs Aerospace: Applications of 3980-3920 Bearing
In automotive systems, 3980-3920 Bearing supports high-load components like axles and transmissions. While not typically used in aerospace, its precision makes it suitable for ground support equipment.

Key Fields for 3980-3920 Bearing
The 3980-3920 Bearing is ideal for machinery requiring standard radial clearance, such as pumps and compressors. Its steel cage provides stability under varying operational conditions.

Q&A

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