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

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

The 621-612 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 up to 46600 lbf radially and 6510 lbf thrust, making it versatile for various applications.

Its open design allows for easy lubrication, while the steel cage ensures durability under heavy use. 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 systems 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 safe choice for diverse environments.

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Product Parameters

  • Part Number 621-612
  • 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 0.130"
  • Cone Frontface Backing Diameter 2.48"
  • Cone Backface Backing Diameter 2.76"
  • Cup Frontface Backing Diameter 4.35"
  • Cup Backface Backing Diameter 4.13"
  • 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
  • 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

How Is 621-612 Bearing Engineered for Reliability?

621-612 Bearing features chrome steel rings and rollers, ensuring strength and 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 wear for extended performance.
With a temperature range of -30° to 110°C, it operates reliably in various environments.

What Makes 621-612 Bearing Suitable for High-Temperature Applications?

621-612 Bearing withstands temperatures up to 110°C, maintaining performance in demanding conditions.
The chrome steel construction resists heat-related wear, ensuring consistent operation.
Its open design allows for effective lubrication, further enhancing high-temperature resilience.
With a static radial load capacity of 54,800 lbf, it balances heat resistance and strength.

Built for Durability: 621-612 Bearing

621-612 Bearing is crafted with high-quality chrome steel, offering excellent wear resistance.
The tapered roller design distributes loads evenly, reducing stress on individual components.
Its standard radial clearance options provide flexibility for different application needs.
Weighing just 4.8 lb, it combines durability with manageable handling.

Application

Industrial Uses of 621-612 Bearing
The 621-612 Bearing is commonly used in heavy machinery like construction equipment and agricultural gear, where its tapered roller design handles combined loads efficiently. Its chrome steel construction ensures durability in tough working conditions.

In automotive applications, 621-612 Bearing fits well in wheel hubs and differential systems, providing reliable performance under varying loads. The imperial sizing makes it a straightforward replacement for many North American vehicle models.

For industrial conveyor systems, 621-612 Bearing’s open design simplifies lubrication and maintenance, keeping operations running smoothly. The steel cage adds extra strength, making it suitable for high-load scenarios.

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

In manufacturing plants, 621-612 Bearing supports machinery like presses and gearboxes, ensuring smooth rotation under heavy radial and thrust loads. Its ABEC-1 rating balances precision and cost-effectiveness for industrial use.

Built for Heavy-Duty Use: 621-612 Bearing
The 621-612 Bearing excels in applications like forestry machinery, where its combined load capacity and chrome steel rollers withstand constant stress. Its standard radial clearance offers flexibility for different operational needs.

In material handling equipment, 621-612 Bearing’s tapered design ensures stable performance under uneven loads. The steel cage and open construction make it easy to maintain, even in dusty or wet environments.

Automotive vs Industrial: Applications of 621-612 Bearing
In automotive settings, 621-612 Bearing is ideal for truck axles, handling heavy loads with ease. Its imperial sizing ensures compatibility with older or custom-built vehicles.

For industrial uses, 621-612 Bearing shines in machinery like pumps and compressors, where its tapered rollers manage both radial and thrust forces. The chrome steel material resists wear, even in high-temperature conditions.

Q&A

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