TS (Single Row Tapered Roller Bearings) (Imperial) 55187-55434

The 55187-55434 is a single-row tapered roller bearing with a 1.875″ bore and 4.3301″ outer diameter, crafted from durable chrome steel. It handles combined loads up to 28300 lbf radially and 11100 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 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, wheel hubs, or industrial machinery where combined loads are present.

Weighing 2.8 lb, it balances strength and manageability. 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 55187-55434
Brand TFL
Interchangeable Timken
Size 1.875" x 4.3301" x 1.1516"
Bore Dia 1.875"
Bore Dia Tolerance +0.005" to 0
Outer Dia 4.3301"
Outer Dia Tolerance +0.001" to 0
Cone Width 1.0594"
Cone Width Tolerance +0.003" to -0.01
Cup Width 0.7766"
Cup Width Tolerance +0.002" to -0.01
Width 1.1516"
Width Tolerance +0.008" to 0
Cone Backface ToClear Radius 0.14"
Cup Backface ToClear Radius 0.12"
Cone Frontface Backing Diameter 2.44"
Cone Backface Backing Diameter 2.72"
Cup Frontface Backing Diameter 4.11"
Cup Backface Backing Diameter 3.58"
Cage Cone Frontface Clearance 0.16"
Cage Cone Backface Clearance 0.16"
Effective Center Location 0.28"
System of Measurement Inch
Type Bearing
Cone Part Number 55187
Cup Part Number 55434
Bearing Type Roller
Roller Bearing Type Tapered
For Load Direction Combined
Construction Single Row
Seal Type Open
Cups Type Standard
Series 55000
Ring Material Chrome Steel
Roller Material Chrome Steel
Cage Material Steel
Dynamic Radial Load 28300 lbf
Static Radial Load 26700 lbf
Dynamic Radial Rating(90 Million Revolutions)(C90) 7350 lbf
Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 11100 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 2.8 lb

Features

Performance Features of 55187-55434 Bearing

55187-55434 Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 28,300 lbf, ensuring reliable performance in demanding conditions.
The steel cage maintains roller alignment, reducing friction and extending operational life.
With a temperature range of -30° to 110°C, it performs well in various environments.

How Is 55187-55434 Bearing Engineered for Reliability?

55187-55434 Bearing features a tapered roller design, optimised for handling both radial and thrust loads.
The chrome steel construction provides durability, while the steel cage ensures smooth operation.
Its dynamic thrust rating of 11,100 lbf makes it suitable for heavy-duty applications.
The standard radial clearance allows for flexibility in different operating conditions.

Built for Durability: 55187-55434 Bearing

55187-55434 Bearing’s single-row construction enhances its load-carrying capacity and reliability.
The precise tolerances on bore and outer diameters ensure a perfect fit during installation.
With an ABEC-1 rating, it balances performance and cost-effectiveness for various applications.
The required lubrication ensures consistent performance over its extended service life.

Steel vs Ceramic Bearings: Strengths of 55187-55434 Bearing

55187-55434 Bearing uses chrome steel for both rings and rollers, providing excellent strength and wear resistance.
Its dynamic radial rating of 7,350 lbf at 90 million revolutions highlights its long-term reliability.
The standard radial clearance options (C3/C4/C5) allow for customisation based on specific needs.
Weighing just 2.8 lb, it offers a good balance between durability and weight.

Application

Key Fields for 55187-55434 Bearing
In industrial settings, 55187-55434 Bearing is commonly used in heavy machinery like conveyor systems and gearboxes, where its tapered roller design handles combined loads efficiently. The chrome steel construction ensures durability even in demanding environments.

Where Is 55187-55434 Bearing Used?
You’ll often find 55187-55434 Bearing in automotive applications, particularly in wheel hubs and differential systems. Its inch sizing makes it a reliable choice for American-made vehicles, offering smooth performance under radial and thrust loads.

Built for Heavy-Duty Use: 55187-55434 Bearing
55187-55434 Bearing excels in construction equipment, such as bulldozers and cranes, thanks to its robust steel cage and high dynamic load capacity. The open design allows for easy lubrication, extending its service life.

Automotive vs Aerospace: Applications of 55187-55434 Bearing
While 55187-55434 Bearing is popular in automotive wheel assemblies, it also finds use in aerospace landing gear systems. Its ability to handle both radial and thrust loads makes it versatile across industries.

Perfect Fit for Automation: 55187-55434 Bearing
In automated production lines, 55187-55434 Bearing supports robotic arms and assembly systems with precision. The standard radial clearance ensures consistent performance in high-speed operations.