TS (Single Row Tapered Roller Bearings) (Imperial) 3981-3926

The 3981-3926 is a single-row tapered roller bearing with a 2.3125″ 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 for easy lubrication, while the steel cage ensures durability under heavy use. 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 machinery like gearboxes or axles where combined loads are common.

Weighing 3.1 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it’s a safe choice for industrial use.

The bearing features standard radial clearance, with options for C3, C4, or C5 available. Its ABEC-1 rating ensures consistent performance for general applications.

The tapered roller design provides effective load distribution, reducing wear over time. The cone and cup assembly simplifies installation and maintenance.

Suitable for environments requiring reliable performance under combined radial and thrust loads. Commonly used in automotive and industrial equipment.

Its dimensions and tolerances are precision-engineered for a secure fit, ensuring long service life.

The 3981-3926’s effective center location at -0.18″ helps maintain alignment under load. The chrome steel rollers enhance durability and reduce friction.

The standard cup type and open seal design make it easy to inspect and maintain. It’s a practical choice for applications needing frequent lubrication.

Frequently used in heavy-duty machinery where reliability is crucial. Its compatibility with Timken parts adds to its versatility.

The bearing’s robust construction and material quality make it a dependable option for demanding conditions.

With a dynamic radial rating of 8090 lbf for 90 million revolutions, it offers long-lasting performance. The static radial load capacity of 43000 lbf ensures stability under heavy loads.

The tapered design efficiently manages both radial and axial forces. Its steel cage provides added strength and longevity.

Ideal for use in construction equipment or agricultural machinery. The bearing’s tolerances and clearances are designed for precise operation.

Compliant with international standards, it’s a trustworthy component for various industrial needs.

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Description

Features

Application

Q&A

Product Parameters

Part Number 3981-3926
Brand TFL
Interchangeable Timken
Size 2.3125" x 4.4375" x 1.3126"
Bore Dia 2.3125"
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 1.0625"
Cup Width Tolerance +0.002" to -0.01
Width 1.3126"
Width Tolerance +0.008" to 0
Cone Backface ToClear Radius 0.14"
Cup Backface ToClear Radius 0.130"
Cone Frontface Backing Diameter 2.64"
Cone Backface Backing Diameter 2.87"
Cup Frontface Backing Diameter 4.18"
Cup Backface Backing Diameter 3.86"
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 3981
Cup Part Number 3926
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 3.1 lb

Features

How Is 3981-3926 Bearing Engineered for Reliability?

3981-3926 Bearing features chrome steel rings and rollers, providing strong resistance to combined loads.
Its dynamic radial load capacity reaches 31,200 lbf, ensuring dependable performance in tough conditions.

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

3981-3926 Bearing’s standard radial clearance offers flexibility for different applications.
Its ABEC-1 rating ensures consistent precision and smooth operation.

Application

Industrial Uses of 3981-3926 Bearing
3981-3926 Bearing is commonly used in heavy machinery like construction equipment, where its tapered roller design handles combined loads efficiently. The chrome steel construction ensures durability even in demanding environments.

In automotive applications, 3981-3926 Bearing fits well in wheel hubs and differential systems, providing reliable performance under varying loads. Its imperial sizing makes it a preferred choice for older or custom vehicle models.

For industrial conveyor systems, 3981-3926 Bearing’s open design allows for easy lubrication, extending service life in high-use scenarios. The standard radial clearance offers flexibility for different operational needs.

Where Is 3981-3926 Bearing Used?
You’ll often find 3981-3926 Bearing in agricultural machinery, where its robust design handles rough conditions. The steel cage adds extra strength, making it suitable for heavy-duty tasks.

In mining equipment, 3981-3926 Bearing’s ability to manage radial and thrust loads makes it ideal for crushers and screens. The ABEC-1 rating ensures consistent performance without over-engineering.

Built for Heavy-Duty Use: 3981-3926 Bearing
3981-3926 Bearing excels in forestry equipment, where its tapered rollers distribute loads evenly. The chrome steel rollers resist wear, even in abrasive environments.

For railway applications, 3981-3926 Bearing’s effective center location helps maintain alignment under dynamic loads. Its compatibility with Timken designs simplifies replacements.

Automotive vs Aerospace: Applications of 3981-3926 Bearing
In automotive systems, 3981-3926 Bearing is trusted for drivetrain components due to its load capacity. The inch measurements align with many US-made parts.

For aerospace ground support equipment, 3981-3926 Bearing’s temperature range suits outdoor use. However, its ABEC-1 rating limits it to non-critical flight applications.