TS (Single Row Tapered Roller Bearings) (Imperial) 557-S-552A

The 557-S-552A is a single-row tapered roller bearing with a 2.125″ bore and 4.875″ outer diameter, crafted from sturdy chrome steel. It handles combined loads up to 50800 lbf radially and 7810 lbf thrust, making it a versatile choice.

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, offering a reliable replacement option. Ideal for heavy-duty applications like truck axles or industrial gearboxes where combined loads are common.

Weighing 4.9 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it’s a safe and dependable choice.

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Description

Features

Application

Q&A

Product Parameters

Part Number 557-S-552A
Brand TFL
Interchangeable Timken
Size 2.125" x 4.875" x 1.5"
Bore Dia 2.125"
Bore Dia Tolerance +0.005" to 0
Outer Dia 4.875"
Outer Dia Tolerance +0.001" to 0
Cone Width 1.444"
Cone Width Tolerance +0.003" to -0.01
Cup Width 1.1875"
Cup Width Tolerance +0.002" to -0.01
Width 1.5"
Width Tolerance +0.008" to 0
Cone Backface ToClear Radius 0.14"
Cup Backface ToClear Radius 0.130"
Cone Frontface Backing Diameter 2.64"
Cone Backface Backing Diameter 2.87"
Cup Frontface Backing Diameter 4.60"
Cup Backface Backing Diameter 4.29"
Cage Cone Frontface Clearance 0.08"
Cage Cone Backface Clearance 0.07"
Effective Center Location -0.37"
System of Measurement Inch
Type Bearing
Cone Part Number 557-S
Cup Part Number 552A
Bearing Type Roller
Roller Bearing Type Tapered
For Load Direction Combined
Construction Single Row
Seal Type Open
Cups Type Standard
Series 555
Ring Material Chrome Steel
Roller Material Chrome Steel
Cage Material Steel
Dynamic Radial Load 50800 lbf
Static Radial Load 55700 lbf
Dynamic Radial Rating(90 Million Revolutions)(C90) 13200 lbf
Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 7810 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 4.900 lb

Features

Performance Features of 557-S-552A Bearing

557-S-552A Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 50,800 lbf, ensuring reliable performance in heavy-duty applications.
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 environmental conditions.

Application

Industrial Uses of 557-S-552A Bearing
557-S-552A 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.

In automotive applications, 557-S-552A Bearing fits well in wheel hubs and differential systems, providing reliable performance under radial and thrust loads. Its inch sizing makes it a preferred choice for American-made vehicles.

For industrial conveyor systems, 557-S-552A Bearing’s open design allows for easy lubrication, extending service life in high-load scenarios. The steel cage adds extra strength, making it suitable for continuous operation.

What Makes 557-S-552A Bearing a Preferred Choice?
557-S-552A Bearing stands out in agricultural machinery, where its robust design copes with uneven loads and harsh conditions. The standard radial clearance ensures smooth operation in varying temperatures.

In mining equipment, 557-S-552A Bearing’s high dynamic load capacity makes it ideal for crushers and screens. Its compatibility with Timken models simplifies replacements and maintenance.

Built for Heavy-Duty Use: 557-S-552A Bearing
557-S-552A Bearing excels in forestry machinery, handling shock loads from heavy logs with ease. The tapered rollers distribute stress evenly, reducing wear over time.

For railway applications, 557-S-552A Bearing’s precision engineering ensures stability in freight car axles. Its ABEC-1 rating balances performance and cost for bulk transport needs.

Light-Duty vs Heavy-Duty: Best Uses for 557-S-552A Bearing
In light-duty applications like small pumps, 557-S-552A Bearing offers reliable service with minimal maintenance. Its standard lubrication needs keep operational costs low.

For heavy-duty uses like oil rig machinery, 557-S-552A Bearing’s high static load rating prevents deformation under extreme pressure. The chrome steel components resist corrosion in wet environments.