TS (Single Row Tapered Roller Bearings) (Imperial) L778149-L778110

The L778149-L778110 is a single-row tapered roller bearing with a 23″ bore and 27.9375″ outer diameter, built from sturdy chrome steel. It handles combined loads up to 271,000 lbf radially and 57,200 lbf thrust, making it suitable for heavy-duty applications.

Its pin-type cage design ensures smooth operation, while the open seal allows for easy lubrication. The bearing operates well in temperatures ranging from -30°C to 110°C.

This model is interchangeable with Timken bearings, offering a reliable replacement option. Ideal for industrial machinery, large gearboxes, or construction equipment where high load capacity is needed.

Weighing 96.10 lb, it’s robust and durable for long-term use. Compliant with RoHS and REACH standards, it meets environmental and safety requirements.

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Description

Features

Application

Q&A

Product Parameters

Part Number L778149-L778110
Brand TFL
Interchangeable Timken
Size 23" x 27.9375" x 2.3125"
Bore Dia 23"
Bore Dia Tolerance +0.002" to 0
Outer Dia 27.9375"
Outer Dia Tolerance +0.003" to 0
Cone Width 2.25"
Cone Width Tolerance +0.003" to -0.01
Cup Width 1.5625"
Cup Width Tolerance +0.002" to -0.01
Width 2.3125"
Width Tolerance +0.015" to -0.015"
Cone Backface ToClear Radius 0.14"
Cup Backface ToClear Radius 0.130"
Cone Frontface Backing Diameter 28.11"
Cone Backface Backing Diameter 23.86"
Cup Frontface Backing Diameter 27.28"
Cup Backface Backing Diameter 26.93"
Cage Cone Frontface Clearance 0.31"
Cage Cone Backface Clearance 0.14"
Effective Center Location 2.71"
System of Measurement Inch
Type Bearing
Cone Part Number L778149
Cup Part Number L778110
Bearing Type Roller
Roller Bearing Type Tapered
For Load Direction Combined
Construction Single Row
Seal Type Open
Cups Type Standard
Series L778100
Ring Material Chrome Steel
Roller Material Chrome Steel
Cage Material Pin-Type
Dynamic Radial Load 271000 lbf
Static Radial Load 659000 lbf
Dynamic Radial Rating(90 Million Revolutions)(C90) 70300 lbf
Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 57200 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 96.10 lb

Features

Performance Features of L778149-L778110 Bearing

L778149-L778110 Bearing is built with chrome steel rings and rollers, offering robust performance under combined loads.
Its dynamic radial load capacity reaches 271,000 lbf, making it suitable for heavy-duty industrial applications.

The pin-type cage ensures proper roller alignment, reducing friction and enhancing durability.
With a standard radial clearance, it provides reliable operation in various temperature conditions.

L778149-L778110 Bearing requires regular lubrication to maintain optimal performance.
Its design allows for easy installation and maintenance, reducing downtime in critical operations.

Application

Industrial Uses of L778149-L778110 Bearing
L778149-L778110 Bearing is commonly used in heavy machinery like mining equipment and construction vehicles, where its tapered roller design handles combined radial and thrust loads effectively. The chrome steel construction ensures durability in harsh working conditions.

Where Is L778149-L778110 Bearing Used?
You’ll often find L778149-L778110 Bearing in large industrial gearboxes and power transmission systems. Its imperial sizing makes it ideal for American-made machinery requiring robust performance under heavy loads.

Built for Heavy-Duty Use: L778149-L778110 Bearing
L778149-L778110 Bearing excels in applications like railway axles and wind turbine gearboxes, where its pin-type cage provides stable roller guidance. The standard radial clearance allows for smooth operation in varying temperature conditions.

Automotive vs Aerospace: Applications of L778149-L778110 Bearing
In automotive applications, L778149-L778110 Bearing supports large truck wheel hubs, while in aerospace, it’s used in auxiliary gear systems. The ABEC-1 rating ensures reliable performance without unnecessary precision costs.

Practical Applications of L778149-L778110 Bearing
L778149-L778110 Bearing works well in agricultural machinery like combine harvesters, where its high static load capacity prevents deformation during intermittent heavy loads. The open design simplifies lubrication maintenance in field conditions.