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TS (Single Row Tapered Roller Bearings) (Imperial) L521945-L521910

TS (Single Row Tapered Roller Bearings) (Imperial) L521945-L521910

The L521945-L521910 is a single-row tapered roller bearing with a 4″ bore and 5.75″ outer diameter, made from sturdy chrome steel. It handles combined loads up to 21600 lbf radially and 3760 lbf thrust, suitable for heavy-duty applications.

Its open design allows easy lubrication, while the steel cage ensures durability. 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 vehicle systems where combined loads are common.

Weighing 2.6 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards for safe use.

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Product Parameters

  • Part Number L521945-L521910
  • Brand TFL
  • Interchangeable Timken
  • Size 4" x 5.75" x 0.8438"
  • Bore Dia 4"
  • Bore Dia Tolerance +0.001" to 0
  • Outer Dia 5.75"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 0.8438"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 0.6563"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 0.8438"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.06"
  • Cup Backface ToClear Radius 0.06"
  • Cone Frontface Backing Diameter 4.95"
  • Cone Backface Backing Diameter 4.41"
  • Cup Frontface Backing Diameter 5.57"
  • Cup Backface Backing Diameter 5.35"
  • Cage Cone Frontface Clearance 0.1"
  • Cage Cone Backface Clearance 0.01"
  • Effective Center Location 0.19"
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number L521945
  • Cup Part Number L521910
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Cups Type Standard
  • Series L521900
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Load 21600 lbf
  • Static Radial Load 39400 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 5600 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 3760 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 2.6 lb

Features

Performance Features of L521945-L521910 Bearing

L521945-L521910 Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 21,600 lbf, ensuring reliable performance in heavy-duty applications.
The steel cage maintains proper roller alignment, reducing friction and extending operational life.
With a temperature range of -30° to 110°C, it performs well in various environmental conditions.

How Is L521945-L521910 Bearing Engineered for Reliability?

L521945-L521910 Bearing features a single-row tapered roller design, optimised for combined load handling.
The chrome steel construction provides durability, while the standard radial clearance ensures smooth operation.
Its dynamic thrust rating of 3,760 lbf at 90 million revolutions highlights its long-term reliability.
This bearing is interchangeable with Timken models, offering flexibility in replacement options.

Built for Durability: L521945-L521910 Bearing

L521945-L521910 Bearing’s chrome steel rollers and rings enhance its wear resistance under heavy loads.
The steel cage design minimises roller misalignment, contributing to consistent performance.
With a static radial load capacity of 39,400 lbf, it handles demanding industrial applications.
Its ABEC-1 rating ensures precision, making it suitable for various mechanical systems.

Steel vs Ceramic Bearings: Strengths of L521945-L521910 Bearing

L521945-L521910 Bearing uses chrome steel for both rollers and rings, balancing cost and performance.
This material choice provides excellent strength and durability in high-load scenarios.
The bearing’s standard radial clearance allows for smooth operation without excessive heat generation.
Its compatibility with Timken models makes it a practical choice for maintenance and replacements.

Application

Industrial Uses of L521945-L521910 Bearing
L521945-L521910 Bearing is commonly used in heavy machinery, such as construction equipment and mining tools, where its tapered roller design handles combined loads effectively. The chrome steel construction ensures durability even in demanding environments.

In automotive applications, L521945-L521910 Bearing supports wheel hubs and differential systems, providing reliable performance under radial and thrust loads. Its imperial sizing makes it a preferred choice for North American vehicle models.

For industrial conveyor systems, L521945-L521910 Bearing’s open design allows for easy lubrication, extending service life in high-load scenarios. The steel cage adds stability, making it suitable for continuous operation.

Where Is L521945-L521910 Bearing Used?
L521945-L521910 Bearing finds its place in agricultural machinery, such as tractors and harvesters, where its robust design withstands rough conditions. The standard radial clearance ensures smooth operation even with varying loads.

In power transmission systems, L521945-L521910 Bearing’s tapered rollers reduce friction, improving efficiency in gearboxes and driveshafts. Its compatibility with Timken models makes it a versatile replacement option.

Built for Heavy-Duty Use: L521945-L521910 Bearing
L521945-L521910 Bearing excels in railway applications, supporting axle boxes with its high dynamic load capacity. The ABEC-1 rating ensures consistent performance at moderate speeds.

For pulp and paper processing equipment, L521945-L521910 Bearing’s temperature resistance makes it ideal for environments with fluctuating heat. The steel cage and chrome steel rollers enhance longevity in corrosive conditions.

Automotive vs Aerospace: Applications of L521945-L521910 Bearing
In automotive settings, L521945-L521910 Bearing is trusted for drivetrain components due to its combined load handling. The imperial measurements align with standard US manufacturing specs.

For aerospace ground support equipment, L521945-L521910 Bearing’s reliability ensures smooth operation in load-handling systems. Its compliance with RoHS and REACH standards adds to its suitability for regulated industries.

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