TS (Single Row Tapered Roller Bearings) (Imperial) 6581X-6525X

The 6581X-6525X is a single-row tapered roller bearing with a 3.54″ bore and 6.3″ outer diameter, crafted from durable chrome steel. It handles combined loads up to 98800 lbf radial and 17600 lbf thrust, making it robust for heavy-duty use.

Its open design and steel cage ensure easy lubrication and long service life, even in temperatures from -30°C to 110°C. The bearing is interchangeable with Timken models, offering flexibility for replacements.

With a standard radial clearance and ABEC-1 rating, it balances precision and durability. Ideal for industrial machinery or automotive applications where high load capacity is needed.

Weighing 9.9 lb, it’s sturdy yet manageable for its size. Compliant with RoHS and REACH standards for safe and reliable operation.

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Description

Features

Application

Q&A

Product Parameters

Part Number 6581X-6525X
Brand TFL
Interchangeable Timken
Size 3.5433" x 6.2992" x 2.125"
Bore Dia 3.5433"
Bore Dia Tolerance +0.001" to 0
Outer Dia 6.2992"
Outer Dia Tolerance +0.001" to 0
Cone Width 2.1693"
Cone Width Tolerance +0.003" to -0.01
Cup Width 1.75"
Cup Width Tolerance +0.002" to -0.01
Width 2.125"
Width Tolerance +0.008" to 0
Cone Backface ToClear Radius 0.12"
Cup Backface ToClear Radius 0.12"
Cone Frontface Backing Diameter 4.72"
Cone Backface Backing Diameter 4.29"
Cup Frontface Backing Diameter 6.06"
Cup Backface Backing Diameter 5.55"
Cage Cone Frontface Clearance 0.06"
Cage Cone Backface Clearance 0.15"
Effective Center Location -0.52"
System of Measurement Inch
Type Bearing
Cone Part Number 6581X
Cup Part Number 6525X
Bearing Type Roller
Roller Bearing Type Tapered
For Load Direction Combined
Construction Single Row
Seal Type Open
Cups Type Standard
Series 6500
Ring Material Chrome Steel
Roller Material Chrome Steel
Cage Material Steel
Dynamic Radial Load 98800 lbf
Static Radial Load 118000 lbf
Dynamic Radial Rating(90 Million Revolutions)(C90) 25600 lbf
Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 17600 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 9.9 lb

Features

How Does 6581X-6525X Bearing Handle Combined Loads?

6581X-6525X Bearing is built with chrome steel rings and rollers, offering strong resistance to both radial and thrust loads.
Its dynamic radial load capacity reaches 98,800 lbf, making it suitable for heavy-duty applications.

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

6581X-6525X Bearing’s standard radial clearance allows for smooth operation under combined loads.
Its ABEC-1 rating ensures consistent performance in precision applications.

Application

Industrial Uses of 6581X-6525X Bearing
6581X-6525X Bearing is commonly used in heavy machinery like construction equipment and mining rigs, where its tapered roller design handles combined loads effectively. The chrome steel construction ensures durability even in tough working conditions.

Where Is 6581X-6525X Bearing Used?
You’ll often find 6581X-6525X Bearing in agricultural machinery, supporting components like gearboxes and axles. Its inch sizing makes it a good fit for North American equipment standards.

Built for Heavy-Duty Use: 6581X-6525X Bearing
6581X-6525X Bearing excels in industrial fans and pumps, where its open design allows for easy lubrication. The steel cage adds stability, making it reliable for continuous operation.

Automotive vs Aerospace: Applications of 6581X-6525X Bearing
In automotive systems, 6581X-6525X Bearing works well in wheel hubs and differentials, handling both radial and thrust loads. For aerospace, its precision fits auxiliary systems requiring consistent performance.

Essential Roles of 6581X-6525X Bearing
6581X-6525X Bearing is a go-to for conveyor systems in factories, thanks to its high dynamic load capacity. The standard radial clearance ensures smooth operation in varied temperature conditions.