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TS (Single Row Tapered Roller Bearings) (Imperial) 421-412A

TS (Single Row Tapered Roller Bearings) (Imperial) 421-412A

The 421-412A is a single-row tapered roller bearing with a 1.378″ bore and 3.25″ outer diameter, crafted from sturdy chrome steel. It handles combined loads up to 26000 lbf radial and 3040 lbf thrust, making it versatile for various applications.

Its open design allows easy lubrication, while the steel cage ensures durability. 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 heavy-duty machinery or automotive systems where combined loads are common.

Weighing 1.7 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards for safe use.

The standard radial clearance and ABEC-1 rating ensure consistent performance. Its tapered roller design provides efficient load distribution, reducing wear over time.

Perfect for industrial equipment or vehicle components needing reliable load handling. The precise tolerances and chrome steel construction ensure long service life with proper maintenance.

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Product Parameters

  • Part Number 421-412A
  • Brand TFL
  • Interchangeable Timken
  • Size 1.378" x 3.25" x 1.125"
  • Bore Dia 1.378"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 3.25"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 1.145"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 0.9375"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 1.125"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.03"
  • Cup Backface ToClear Radius 0.06"
  • Cone Frontface Backing Diameter 1.65"
  • Cone Backface Backing Diameter 1.67"
  • Cup Frontface Backing Diameter 3.07"
  • Cup Backface Backing Diameter 2.91"
  • Cage Cone Frontface Clearance 0.06"
  • Cage Cone Backface Clearance 0.03"
  • Effective Center Location -0.38"
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 421
  • Cup Part Number 412A
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Cups Type Standard
  • Series 415
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Load 26000 lbf
  • Static Radial Load 28000 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 6740 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 3040 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 1.7 lb

Features

Engineered for Precision: 421-412A Bearing

421-412A Bearing features a single row tapered roller design, ideal for handling combined loads with ease.
Its chrome steel construction ensures durability and resistance to wear in demanding applications.

The bearing’s dynamic radial load capacity reaches 26,000 lbf, providing reliable performance under stress.
Precision tolerances on the cone and cup widths ensure smooth operation and extended service life.

421-412A Bearing operates efficiently within a temperature range of -30° to 110°C.
Its standard radial clearance options offer flexibility for various industrial needs.

With interchangeable compatibility with Timken bearings, 421-412A Bearing simplifies replacements.
The steel cage maintains roller alignment, reducing friction and enhancing longevity.

Application

Industrial Uses of 421-412A Bearing
The 421-412A 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 421-412A Bearing Used?
You’ll often find 421-412A Bearing in automotive applications, particularly in wheel hubs and transmissions, where its robust design supports high radial and thrust loads. The inch sizing makes it a fit for many North American vehicle models.

Built for Heavy-Duty Use: 421-412A Bearing
421-412A Bearing excels in industrial fans and pumps, thanks to its open design and steel cage, which allow for easy lubrication and long service life. It’s a reliable choice for continuous operation in harsh conditions.

Automotive vs Aerospace: Applications of 421-412A Bearing
In automotive systems, 421-412A Bearing is ideal for axles and differentials, while in aerospace, its precision suits auxiliary gearboxes. The ABEC-1 rating ensures consistent performance across both sectors.

Perfect Fit for Automation: 421-412A Bearing
421-412A Bearing works well in conveyor systems and robotic arms, where its tapered rollers provide smooth motion under varying loads. The standard radial clearance offers flexibility for different automation needs.

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