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

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

The 621-612A is a single-row tapered roller bearing with a 2.125″ bore and 4.726″ 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 from -30°C to 110°C, suitable for demanding environments.

This model is interchangeable with Timken bearings, offering a reliable replacement option. Ideal for industrial machinery, gearboxes, or automotive systems where combined loads are common.

Weighing 4.8 lb, it balances strength and manageability. Compliant with RoHS and REACH standards, it’s a safe choice for diverse settings.

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Product Parameters

  • Part Number 621-612A
  • Brand TFL
  • Interchangeable Timken
  • Size 2.125" x 4.726" x 1.6251"
  • Bore Dia 2.125"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 4.726"
  • 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 1.6251"
  • 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 4.06"
  • 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 612A
  • 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 621-612A Bearing for Precision Tasks?

621-612A Bearing is crafted with chrome steel rings and rollers, ensuring durability and precision in combined load applications.
Its dynamic radial load capacity reaches 46,600 lbf, making it suitable for heavy-duty operations.

The tapered roller design of 621-612A Bearing provides effective load distribution, reducing wear over time.
With a standard radial clearance, it offers reliable performance in various industrial settings.

621-612A Bearing operates smoothly within a temperature range of -30° to 110°C, ensuring versatility.
Its steel cage maintains roller alignment, contributing to long service life and reduced maintenance needs.

Application

Industrial Uses of 621-612A Bearing
The 621-612A 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 even in demanding environments.

Where Is 621-612A Bearing Used?
You’ll often find 621-612A Bearing in automotive axles and wheel hubs, thanks to its ability to manage both radial and thrust loads. The inch sizing makes it a straightforward fit for many North American vehicle designs.

Built for Heavy-Duty Use: 621-612A Bearing
In industrial conveyor systems, 621-612A Bearing provides reliable performance under constant stress. The open design allows for easy lubrication, extending its service life in high-use settings.

Automotive vs Aerospace: Applications of 621-612A Bearing
While 621-612A Bearing excels in truck transmissions, it’s also suitable for aerospace ground support equipment. Its ABEC-1 rating ensures consistent precision without over-engineering for less critical applications.

Essential Roles of 621-612A Bearing
For mining equipment, 621-612A Bearing’s robust construction handles harsh conditions with ease. The standard radial clearance offers a balance of performance and ease of installation.

Q&A

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