TS (Single Row Tapered Roller Bearings) (Imperial) 43138X-43300

The 43138X-43300 is a single-row tapered roller bearing with a 1.378″ bore and 3″ outer diameter, crafted from sturdy chrome steel. It manages combined loads up to 17500 lbf radially and 5170 lbf thrust, suitable for demanding applications.

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

This model is interchangeable with Timken bearings, making it a practical choice for replacements. Ideal for heavy-duty machinery or automotive uses where combined loads are common.

Weighing just 1 lb, it’s robust yet lightweight. Compliant with RoHS and REACH standards for safe and reliable performance.

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Description

Features

Application

Q&A

Product Parameters

Part Number 43138X-43300
Brand TFL
Interchangeable Timken
Size 1.378" x 3" x 0.9376"
Bore Dia 1.378"
Bore Dia Tolerance +0.005" to 0
Outer Dia 3"
Outer Dia Tolerance +0.001" to 0
Cone Width 0.9166"
Cone Width Tolerance +0.003" to -0.01
Cup Width 0.6563"
Cup Width Tolerance +0.002" to -0.01
Width 0.9376"
Width Tolerance +0.008" to 0
Cone Backface ToClear Radius 0.14"
Cup Backface ToClear Radius 0.130"
Cone Frontface Backing Diameter 1.65"
Cone Backface Backing Diameter 2.05"
Cup Frontface Backing Diameter 2.91"
Cup Backface Backing Diameter 2.52"
Cage Cone Frontface Clearance 0.13"
Cage Cone Backface Clearance 0.07"
Effective Center Location -0.05"
System of Measurement Inch
Type Bearing
Cone Part Number 43138X
Cup Part Number 43300
Bearing Type Roller
Roller Bearing Type Tapered
For Load Direction Combined
Construction Single Row
Seal Type Open
Cups Type Standard
Series 43000
Ring Material Chrome Steel
Roller Material Chrome Steel
Cage Material Steel
Dynamic Radial Load 17500 lbf
Static Radial Load 17100 lbf
Dynamic Radial Rating(90 Million Revolutions)(C90) 4520 lbf
Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 5170 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 1 lb

Features

Performance Features of 43138X-43300 Bearing

43138X-43300 Bearing is crafted from chrome steel for both rings and rollers, ensuring strength and durability.
Its dynamic radial load capacity reaches 17,500 lbf, making it suitable for heavy-duty applications.

The single-row tapered roller design efficiently handles combined loads, providing reliable performance.
With a standard radial clearance, it offers flexibility for various operational requirements.

43138X-43300 Bearing operates within a temperature range of -30° to 110°C, adapting to diverse environments.
The steel cage maintains roller alignment, reducing friction and extending service life.

Easy to install and maintain, 43138X-43300 Bearing simplifies integration into existing systems.
Its ABEC-1 rating ensures consistent precision for industrial applications.

Application

Industrial Uses of 43138X-43300 Bearing
43138X-43300 Bearing is commonly used in heavy machinery like construction equipment, where its tapered roller design handles combined loads effectively. The chrome steel construction ensures durability even in demanding environments.

Where Is 43138X-43300 Bearing Used?
You’ll often find 43138X-43300 Bearing in automotive applications, particularly in wheel hubs and differential systems. Its inch sizing makes it a good fit for American and British vehicle models.

Built for Heavy-Duty Use: 43138X-43300 Bearing
43138X-43300 Bearing excels in industrial gearboxes, providing reliable performance under high radial and thrust loads. The open design allows for easy lubrication, extending its service life.

Automotive vs Aerospace: Applications of 43138X-43300 Bearing
In automotive systems, 43138X-43300 Bearing supports wheel assemblies, while in aerospace, it’s used in auxiliary equipment. Its ABEC-1 rating ensures consistent performance across different industries.

Essential Roles of 43138X-43300 Bearing
43138X-43300 Bearing is a go-to choice for agricultural machinery, where its robust design handles uneven loads. The steel cage adds extra strength, making it suitable for rough conditions.