TS (Single Row Tapered Roller Bearings) (Imperial) 3581-3526

The 3581-3526 is a single-row tapered roller bearing with a 1.375″ bore and 3.4375″ outer diameter, crafted from sturdy chrome steel. It handles combined loads up to 25500 lbf radially and 3460 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, gearboxes, or automotive systems where combined loads are common.

Weighing just 2lb, it balances strength and manageability. Compliant with RoHS and REACH standards, it meets safety and environmental requirements.

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Description

Features

Application

Q&A

Product Parameters

Part Number 3581-3526
Brand TFL
Interchangeable Timken
Size 1.375" x 3.4375" x 1.1875"
Bore Dia 1.375"
Bore Dia Tolerance +0.005" to 0
Outer Dia 3.4375"
Outer Dia Tolerance +0.001" to 0
Cone Width 1.216"
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 0.03"
Cone Frontface Backing Diameter 1.69"
Cone Backface Backing Diameter 1.95"
Cup Frontface Backing Diameter 3.23"
Cup Backface Backing Diameter 3.03"
Cage Cone Frontface Clearance 0.05"
Cage Cone Backface Clearance 0.07"
Effective Center Location -0.4"
System of Measurement Inch
Type Bearing
Cone Part Number 3581
Cup Part Number 3526
Bearing Type Roller
Roller Bearing Type Tapered
For Load Direction Combined
Construction Single Row
Seal Type Open
Cups Type Standard
Series 3500
Ring Material Chrome Steel
Roller Material Chrome Steel
Cage Material Steel
Dynamic Radial Load 25500 lbf
Static Radial Load 30100 lbf
Dynamic Radial Rating(90 Million Revolutions)(C90) 6610 lbf
Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 3460 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 lb

Features

Performance Features of 3581-3526 Bearing

3581-3526 Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 25,500 lbf, making it suitable for demanding applications.
The steel cage ensures proper roller alignment, reducing friction and wear.
With a temperature range of -30° to 110°C, it performs reliably in various conditions.

How Does 3581-3526 Bearing Resist Wear?

3581-3526 Bearing’s tapered roller design distributes loads evenly, minimising wear over time.
The chrome steel construction enhances durability, even under heavy radial or thrust loads.
Its standard radial clearance allows for smooth operation in diverse settings.
Regular lubrication further extends its service life, reducing maintenance needs.

Engineered for Precision: 3581-3526 Bearing

3581-3526 Bearing features precise cone and cup width tolerances for accurate fitment.
The ABEC-1 rating ensures consistent performance in industrial applications.
Its effective center location of -0.4″ provides stability during operation.
The open design simplifies lubrication, keeping maintenance straightforward.

Steel vs Ceramic Bearings: Strengths of 3581-3526 Bearing

3581-3526 Bearing uses chrome steel for both rollers and rings, balancing cost and performance.
This material choice provides excellent strength and fatigue resistance under heavy loads.
The bearing’s dynamic thrust rating of 3,460 lbf ensures reliable operation.
Its inch-sized dimensions make it compatible with imperial system machinery.

Application

Industrial Uses of 3581-3526 Bearing
3581-3526 Bearing is commonly used in heavy machinery like construction equipment, where its tapered roller design handles combined loads effectively. The chrome steel construction ensures durability even in demanding environments.

Where Is 3581-3526 Bearing Used?
You’ll often find 3581-3526 Bearing in automotive applications, particularly in wheel hubs and differential systems. Its inch sizing makes it a reliable choice for American-made vehicles.

Built for Heavy-Duty Use: 3581-3526 Bearing
3581-3526 Bearing excels in industrial gearboxes, thanks to its robust steel cage and high dynamic load capacity. The open design allows for easy lubrication, extending its service life.

Automotive vs Aerospace: Applications of 3581-3526 Bearing
In automotive systems, 3581-3526 Bearing supports high radial and thrust loads in transmissions. While not typically used in aerospace, its precision makes it suitable for ground support equipment.

Perfect Fit for Automation: 3581-3526 Bearing
3581-3526 Bearing works well in conveyor systems and robotic arms, where consistent performance is key. The standard radial clearance ensures smooth operation in automated setups.