TS (Single Row Tapered Roller Bearings) (Imperial) 621-612-S

The 621-612-S is a single-row tapered roller bearing with a 2.125″ bore and 4.75″ outer diameter, crafted from sturdy chrome steel. It handles combined loads, supporting up to 46600 lbf dynamically and 54800 lbf statically.

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 applications like axles or gearboxes where combined loads are common.

Weighing 4.8 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it’s a reliable option for various industrial uses.

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Description

Features

Application

Q&A

Product Parameters

Part Number 621-612-S
Brand TFL
Interchangeable Timken
Size 2.125" x 4.75" x 1.625"
Bore Dia 2.125"
Bore Dia Tolerance +0.005" to 0
Outer Dia 4.75"
Outer Dia Tolerance +0.001" to 0
Cone Width 1.625"
Cone Width Tolerance +0.003" to -0.01
Cup Width 1.25"
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 0.03"
Cone Frontface Backing Diameter 2.48"
Cone Backface Backing Diameter 2.76"
Cup Frontface Backing Diameter 4.35"
Cup Backface Backing Diameter 4.21"
Cage Cone Frontface Clearance 0.11"
Cage Cone Backface Clearance 0.13"
Effective Center Location -0.55"
System of Measurement Inch
Type Bearing
Cone Part Number 621
Cup Part Number 612-S
Bearing Type Roller
Roller Bearing Type Tapered
For Load Direction Combined
Construction Single Row
Seal Type Open
Cups Type Standard
Series 615
Ring Material Chrome Steel
Roller Material Chrome Steel
Cage Material Steel
Dynamic Radial Load 46600 lbf
Static Radial Load 54800 lbf
Dynamic Radial Rating(90 Million Revolutions)(C90) 12100 lbf
Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 6510 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 4.8 lb

Features

Why Choose 621-612-S Bearing for Precision Tasks?

621-612-S Bearing is crafted with chrome steel rings and rollers, ensuring durability under combined loads.
Its dynamic radial load capacity reaches 46,600 lbf, making it suitable for 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 reliably in various environments.

How Is 621-612-S Bearing Engineered for Reliability?

621-612-S Bearing features precise cone and cup dimensions, ensuring smooth operation under stress.
The tapered roller design distributes loads evenly, enhancing stability and reducing wear.
Its standard radial clearance allows for flexibility in different applications.
Chrome steel construction provides resistance to wear, ensuring long-term performance.

Built for Durability: 621-612-S Bearing

621-612-S Bearing’s single-row construction offers simplicity and strength for industrial use.
The open seal design allows for easy lubrication, maintaining optimal performance.
With a static radial load capacity of 54,800 lbf, it handles demanding conditions effortlessly.
Its ABEC-1 rating ensures consistent precision in various mechanical systems.

Application

Industrial Uses of 621-612-S Bearing
The 621-612-S Bearing is commonly used in heavy machinery like construction equipment and agricultural tools, where its tapered roller design handles combined radial and thrust loads effectively. Its chrome steel construction ensures durability in demanding environments.

In automotive applications, 621-612-S Bearing supports wheel hubs and differential systems, providing reliable performance under varying loads. The imperial sizing makes it a convenient choice for North American vehicle models.

For industrial conveyor systems, 621-612-S Bearing’s open design allows for easy lubrication and maintenance, extending service life in high-use scenarios. The steel cage adds stability during continuous operation.

Where Is 621-612-S Bearing Used?
You’ll often find 621-612-S Bearing in mining equipment, where its robust design withstands harsh conditions. The tapered rollers distribute loads evenly, reducing wear over time.

In manufacturing plants, 621-612-S Bearing is ideal for gearboxes and power transmission systems. Its ABEC-1 rating ensures consistent performance without unnecessary precision costs.

Built for Heavy-Duty Use: 621-612-S Bearing
The 621-612-S Bearing excels in forestry machinery, handling heavy loads and shock impacts with ease. Its standard radial clearance balances performance and longevity.

For railway applications, 621-612-S Bearing supports axle boxes, where its temperature range suits varying climates. The steel cage prevents roller misalignment during vibrations.

Automotive vs Aerospace: Applications of 621-612-S Bearing
In automotive systems, 621-612-S Bearing is trusted for drivetrain components due to its dynamic load capacity. The imperial measurements align with standard US part replacements.

For aerospace ground equipment, 621-612-S Bearing handles auxiliary systems like cargo loaders. Its compliance with RoHS and REACH standards ensures environmental safety.