TS (Single Row Tapered Roller Bearings) (Imperial) LM78349-LM78310A

TS (Single Row Tapered Roller Bearings) (Imperial) LM78349-LM78310A

The LM78349-LM78310A is a single-row tapered roller bearing with a 1.3775″ bore and 2.4399″ outer diameter, crafted from durable chrome steel. It handles combined loads up to 9560 lbf radially and 1880 lbf thrust, making it versatile for various applications.

Its open design allows easy lubrication, while the steel cage ensures reliable performance. The bearing operates smoothly in temperatures ranging from -30°C to 110°C, suitable for demanding environments.

This model is interchangeable with Timken bearings, offering a practical replacement option. Ideal for use in gearboxes, axles, or industrial machinery where combined loads are common.

Weighing just 0.4lb, it’s lightweight yet robust. Compliant with RoHS and REACH standards, it’s a safe choice for most industrial needs.

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Product Parameters

  • Part Number LM78349-LM78310A
  • Brand TFL
  • Interchangeable Timken
  • Size 1.3775" x 2.4399" x 0.6575"
  • Bore Dia 1.3775"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 2.4399"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 0.6693"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 0.5354"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 0.6575"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.14"
  • Cup Backface ToClear Radius 0.06"
  • Cone Frontface Backing Diameter 1.57"
  • Cone Backface Backing Diameter 1.81"
  • Cup Frontface Backing Diameter 2.34"
  • Cup Backface Backing Diameter 2.13"
  • Cage Cone Frontface Clearance 0.07"
  • Cage Cone Backface Clearance 0.01"
  • Effective Center Location -0.1"
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number LM78349
  • Cup Part Number LM78310A
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Cups Type Standard
  • Series LM78300
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Load 9560 lbf
  • Static Radial Load 11800 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 2480 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 1880 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 0.4 lb

Features

Performance Features of LM78349-LM78310A Bearing

LM78349-LM78310A Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 9560 lbf, ensuring reliable performance in various applications.
The steel cage maintains roller alignment, reducing friction and extending service life.
With a standard radial clearance, it provides flexibility for different operational needs.

How Is LM78349-LM78310A Bearing Engineered for Reliability?

LM78349-LM78310A Bearing features a single-row tapered roller design, ideal for handling combined loads.
The chrome steel construction ensures durability and resistance to wear under heavy use.
Its effective center location of -0.1″ enhances stability and load distribution.
The bearing operates efficiently within a temperature range of -30° to 110°C.

Built for Durability: LM78349-LM78310A Bearing

LM78349-LM78310A Bearing’s tapered roller design provides excellent load-carrying capacity.
The chrome steel materials resist wear, making it suitable for demanding environments.
With a static radial load of 11800 lbf, it ensures long-term reliability.
The open seal type allows for easy lubrication and maintenance.

Application

Industrial Uses of LM78349-LM78310A Bearing
LM78349-LM78310A Bearing is commonly used in heavy machinery, such as construction equipment and agricultural gear, where its tapered roller design handles combined loads effectively. The chrome steel construction ensures durability even in demanding environments.

In automotive applications, LM78349-LM78310A Bearing fits well in wheel hubs and differential systems, providing reliable performance under varying loads. Its inch sizing makes it a convenient choice for vehicles using imperial measurements.

For industrial conveyor systems, LM78349-LM78310A Bearing’s open design allows for easy lubrication, extending its service life. The steel cage adds stability, making it suitable for high-speed operations.

Why Is LM78349-LM78310A Bearing Essential in Machinery?
LM78349-LM78310A Bearing plays a key role in mining equipment, where its ability to handle radial and thrust loads keeps operations running smoothly. The standard radial clearance offers flexibility for different setups.

In power transmission systems, LM78349-LM78310A Bearing’s tapered rollers reduce friction, improving efficiency. Its compatibility with Timken models makes it a versatile replacement option.

Built for Heavy-Duty Use: LM78349-LM78310A Bearing
LM78349-LM78310A Bearing is ideal for gearboxes in industrial settings, thanks to its robust design and high load capacity. The ABEC-1 rating ensures consistent performance for general applications.

For pump systems, LM78349-LM78310A Bearing’s temperature range (-30° to 110°C) makes it reliable in varying conditions. The steel cage and chrome steel rollers enhance its wear resistance.

Automotive vs Aerospace: Applications of LM78349-LM78310A Bearing
In automotive drivetrains, LM78349-LM78310A Bearing provides stability under heavy loads, while its inch sizing suits aftermarket repairs. For aerospace ground equipment, its durability stands out in auxiliary systems.

The bearing’s open design simplifies maintenance in industrial fans, where regular lubrication is needed. Its dynamic radial load capacity (9560 lbf) ensures long-term reliability.

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