TS (Single Row Tapered Roller Bearings) (Imperial) 52387-52639

The 52387-52639 is a single-row tapered roller bearing with a 3.875″ bore and 6.375″ outer diameter, crafted from sturdy chrome steel. It handles combined loads up to 50200 lbf radially and 10600 lbf thrust, making it versatile for heavy-duty use.

Its open design allows for easy lubrication, while the steel cage ensures durability under high stress. The bearing operates smoothly 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 or automotive applications where robust performance is needed.

Weighing 6.9 lb, it’s built to last with standard radial clearance options. Compliant with RoHS and REACH standards for safe and eco-friendly use.

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Description

Features

Application

Q&A

Product Parameters

Part Number 52387-52639
Brand TFL
Interchangeable Timken
Size 3.875" x 6.375" x 1.625"
Bore Dia 3.875"
Bore Dia Tolerance +0.001" to 0
Outer Dia 6.375"
Outer Dia Tolerance +0.001" to 0
Cone Width 1.4219"
Cone Width Tolerance +0.003" to -0.01
Cup Width 1.5625"
Cup Width Tolerance +0.002" to -0.01
Width 1.625"
Width Tolerance +0.008" to 0
Cone Backface ToClear Radius 0.14"
Cup Backface ToClear Radius 0.130"
Cone Frontface Backing Diameter 4.94"
Cone Backface Backing Diameter 4.49"
Cup Frontface Backing Diameter 6.18"
Cup Backface Backing Diameter 5.67"
Cage Cone Frontface Clearance 0.12"
Cage Cone Backface Clearance 0.16"
Effective Center Location -0.02"
System of Measurement Inch
Type Bearing
Cone Part Number 52387
Cup Part Number 52639
Bearing Type Roller
Roller Bearing Type Tapered
For Load Direction Combined
Construction Single Row
Seal Type Open
Cups Type Standard
Series 52000
Ring Material Chrome Steel
Roller Material Chrome Steel
Cage Material Steel
Dynamic Radial Load 50200 lbf
Static Radial Load 77000 lbf
Dynamic Radial Rating(90 Million Revolutions)(C90) 13000 lbf
Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 10600 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 6.9 lb

Features

Performance Features of 52387-52639 Bearing

52387-52639 Bearing is built with chrome steel rings and rollers, offering robust performance under combined loads.
Its dynamic radial load capacity reaches 50,200 lbf, making it suitable for heavy-duty applications.
The steel cage ensures proper roller alignment, reducing friction and enhancing durability.
With a temperature range of -30° to 110°C, it performs reliably in various operating conditions.

How Is 52387-52639 Bearing Engineered for Reliability?

52387-52639 Bearing features a single-row tapered roller design, optimised for combined load handling.
The chrome steel construction resists wear, ensuring a long service life even under high stress.
Its standard radial clearance allows for smooth operation in diverse industrial settings.
Maintenance is straightforward, with lubrication required to maintain peak performance.

Built for Durability: 52387-52639 Bearing

52387-52639 Bearing’s tapered roller design efficiently manages both radial and thrust loads.
The chrome steel components provide excellent resistance to wear and fatigue.
With a static radial load capacity of 77,000 lbf, it excels in demanding environments.
Its ABEC-1 rating ensures consistent precision and reliability in various applications.

Application

Industrial Uses of 52387-52639 Bearing
The 52387-52639 Bearing is widely used in heavy machinery, such as construction equipment and mining tools, where its tapered roller design handles combined loads efficiently. Its chrome steel construction ensures durability even in demanding environments.

What Makes 52387-52639 Bearing a Preferred Choice?
In automotive applications, 52387-52639 Bearing is often found in wheel hubs and differential systems, providing reliable performance under high radial and thrust loads. The inch sizing makes it compatible with many North American vehicle models.

Built for Heavy-Duty Use: 52387-52639 Bearing
This bearing excels in industrial gearboxes and conveyor systems, where its single-row design simplifies maintenance. The steel cage adds strength, making it suitable for continuous operation.

Automotive vs Aerospace: Applications of 52387-52639 Bearing
While commonly used in trucks and off-road vehicles, 52387-52639 Bearing also finds a place in aerospace landing gear systems. Its ABEC-1 rating ensures consistent performance in precision applications.

Key Fields for 52387-52639 Bearing
In agricultural machinery, 52387-52639 Bearing supports heavy loads in tractors and harvesters. The standard radial clearance allows for smooth operation even with slight misalignments.