TS (Single Row Tapered Roller Bearings) (Imperial) LL450748A-38820

The LL450748A-38820 is a single-row tapered roller bearing with a 10.5″ bore and 12.8″ outer diameter, built from sturdy chrome steel. It handles combined loads up to 48,800 lbf and is designed for long-lasting performance.

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, making it a practical choice for replacements. Ideal for industrial machinery or heavy equipment where combined loads are common.

Weighing 11.9 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards for safe operation.

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Description

Features

Application

Q&A

Product Parameters

Part Number LL450748A-38820
Brand TFL
Interchangeable Timken
Size 10.4945" x 12.8125" x 1.1614"
Bore Dia 10.4945"
Bore Dia Tolerance +0.001" to 0
Outer Dia 12.8125"
Outer Dia Tolerance +0.002" to 0
Cone Width 1.3177"
Cone Width Tolerance +0.003" to -0.01
Cup Width 1"
Cup Width Tolerance +0.002" to -0.01
Width 1.1614"
Width Tolerance +0.014" to -0.01"
Cone Backface ToClear Radius 0.06"
Cup Backface ToClear Radius 0.06"
Cone Frontface Backing Diameter 11.97"
Cone Backface Backing Diameter 10.91"
Cup Frontface Backing Diameter 12.48"
Cup Backface Backing Diameter 12.28"
Cage Cone Frontface Clearance 0"
Cage Cone Backface Clearance 0.03"
Effective Center Location 0.76"
System of Measurement Inch
Type Bearing
Cone Part Number LL450748A
Cup Part Number 38820
Bearing Type Roller
Roller Bearing Type Tapered
For Load Direction Combined
Construction Single Row
Seal Type Open
Cups Type Standard
Series LL450700
Ring Material Chrome Steel
Roller Material Chrome Steel
Cage Material Steel
Dynamic Radial Load 48800 lbf
Static Radial Load 114000 lbf
Dynamic Radial Rating(90 Million Revolutions)(C90) 12700 lbf
Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 7930 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 11.9 lb

Features

Performance Features of LL450748A-38820 Bearing

LL450748A-38820 Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 48,800 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 conditions.

How Is LL450748A-38820 Bearing Engineered for Reliability?

LL450748A-38820 Bearing features a single-row tapered roller design, providing stability under combined loads.
The chrome steel construction enhances durability, while the standard radial clearance ensures smooth operation.
Its effective center location of 0.76″ optimises load distribution, reducing wear.
This bearing meets ABEC-1 standards, ensuring consistent performance.

Built for Durability: LL450748A-38820 Bearing

LL450748A-38820 Bearing’s chrome steel components resist wear, even under high static radial loads of 114,000 lbf.
The open design allows for easy lubrication, maintaining performance over time.
With a dynamic thrust rating of 7,930 lbf, it handles demanding applications with ease.
Its standard cup type simplifies installation and maintenance.

Application

Industrial Uses of LL450748A-38820 Bearing
LL450748A-38820 Bearing is commonly used in heavy machinery, such as mining equipment and construction vehicles, where its tapered roller design handles combined loads effectively. The chrome steel construction ensures durability even in demanding environments.

Where Is LL450748A-38820 Bearing Used?
You’ll often find LL450748A-38820 Bearing in agricultural machinery, like tractors and harvesters, where its robust design supports high radial and thrust loads. Its inch sizing makes it a fit for many North American industrial applications.

Built for Heavy-Duty Use: LL450748A-38820 Bearing
LL450748A-38820 Bearing excels in railway applications, particularly in axle boxes, where its open design allows for easy lubrication. The steel cage adds stability, making it reliable for long-haul operations.

Automotive vs Aerospace: Applications of LL450748A-38820 Bearing
In automotive systems, LL450748A-38820 Bearing is ideal for wheel hubs and differentials, thanks to its high static radial load capacity. For aerospace, it’s suited for ground support equipment where precision and reliability are key.

Perfect Fit for Automation: LL450748A-38820 Bearing
LL450748A-38820 Bearing works well in automated conveyor systems, where its tapered rollers manage both radial and axial loads smoothly. The standard radial clearance ensures consistent performance in varied temperatures.