TS (Single Row Tapered Roller Bearings) (Imperial) LL788345-LL788310

The LL788345-LL788310 is a single-row tapered roller bearing with a large 41.875″ bore and 48″ outer diameter, built from tough chrome steel. It handles combined loads up to 386,000 lbf radially and 81,400 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 reliably in temperatures from -30°C to 110°C.

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

Weighing 241.20 lb, it’s a robust choice for demanding environments. 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 LL788345-LL788310
Brand TFL
Interchangeable Timken
Size 41.875" x 48" x 2.5625"
Bore Dia 41.875"
Bore Dia Tolerance +0.004" to 0
Outer Dia 48"
Outer Dia Tolerance +0.004" to 0
Cone Width 2.5625"
Cone Width Tolerance +0.003" to -0.01
Cup Width 1.6875"
Cup Width Tolerance +0.002" to -0.01
Width 2.5625"
Width Tolerance +0.015" to -0.015"
Cone Backface ToClear Radius 0.13"
Cup Backface ToClear Radius 0.130"
Cone Frontface Backing Diameter 42.72"
Cone Backface Backing Diameter 42.91"
Cup Frontface Backing Diameter 47.24"
Cup Backface Backing Diameter 46.65"
Cage Cone Frontface Clearance 0.48"
Cage Cone Backface Clearance 0.11"
Effective Center Location 5.61"
System of Measurement Inch
Type Bearing
Cone Part Number LL788345
Cup Part Number LL788310
Bearing Type Roller
Roller Bearing Type Tapered
For Load Direction Combined
Construction Single Row
Seal Type Open
Cups Type Standard
Series LL788300
Ring Material Chrome Steel
Roller Material Chrome Steel
Cage Material Pin-Type
Dynamic Radial Load 386000 lbf
Static Radial Load 1270000 lbf
Dynamic Radial Rating(90 Million Revolutions)(C90) 100000 lbf
Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 81400 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 241.20 lb

Features

Performance Features of LL788345-LL788310 Bearing

LL788345-LL788310 Bearing is built with chrome steel rings and rollers, offering robust performance under combined loads.
Its dynamic radial load capacity reaches 386,000 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 conditions.

LL788345-LL788310 Bearing operates efficiently within a temperature range of -30° to 110°C.
Its tapered roller design distributes loads evenly, extending service life and reducing maintenance needs.

The bearing’s ABEC-1 rating ensures consistent precision for general industrial use.
Its interchangeable design with Timken bearings offers flexibility in replacement and sourcing.

Application

Industrial Uses of LL788345-LL788310 Bearing
LL788345-LL788310 Bearing is commonly used in heavy machinery, such as mining equipment and large-scale conveyors, where its tapered roller design handles combined loads effectively. The chrome steel construction ensures durability in demanding environments.

In the automotive sector, LL788345-LL788310 Bearing supports large vehicle components like axles and differentials, providing reliable performance under high radial and thrust loads. Its inch sizing makes it compatible with many North American industrial standards.

For construction equipment, LL788345-LL788310 Bearing’s pin-type cage design offers stability in applications like cranes and bulldozers. The standard radial clearance allows for smooth operation even under varying load conditions.

Where Is LL788345-LL788310 Bearing Used?
LL788345-LL788310 Bearing is ideal for wind turbines, where its ability to handle dynamic radial and thrust loads ensures long-term reliability. The open seal design simplifies lubrication maintenance in remote installations.

In railway applications, LL788345-LL788310 Bearing supports freight car axles, with its high static radial load capacity providing safety under heavy cargo weights. The temperature range also suits diverse climatic conditions.

Built for Heavy-Duty Use: LL788345-LL788310 Bearing
LL788345-LL788310 Bearing excels in steel mills, where its robust construction withstands extreme loads and temperatures. The tapered rollers distribute stress evenly, reducing wear over time.

For agricultural machinery, LL788345-LL788310 Bearing’s compatibility with Timken designs makes it a versatile choice for tractors and harvesters. The ABEC-1 rating ensures sufficient precision for most farming applications.