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

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

The 421-412 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 radially and 3040 lbf thrust, making it versatile for various applications.

Its open design allows 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 machinery like gearboxes or wheel hubs where combined loads are common.

Weighing 1.8 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it’s a safe choice for industrial use.

The standard radial clearance can be adjusted to C3, C4, or C5 if needed. Its ABEC-1 rating ensures consistent performance for general applications.

Perfect for maintenance tasks, its tapered rollers distribute loads evenly, reducing wear over time. A dependable choice for both new installations and replacements.

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Product Parameters

  • Part Number 421-412
  • Brand TFL
  • Interchangeable Timken
  • Size 1.378" x 3.25" x 1.3751"
  • 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 1.1875"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 1.3751"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.03"
  • Cup Backface ToClear Radius 0.130"
  • Cone Frontface Backing Diameter 1.65"
  • Cone Backface Backing Diameter 1.67"
  • Cup Frontface Backing Diameter 3.07"
  • Cup Backface Backing Diameter 2.83"
  • 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 412
  • 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 1.8 lb

Features

How Does 421-412 Bearing Handle Combined Loads?

421-412 Bearing is built with chrome steel rings and rollers, offering strong resistance to both radial and thrust loads.
Its dynamic radial load capacity reaches 26000 lbf, ensuring reliable performance in various 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 diverse environments.

What Makes 421-412 Bearing Suitable for Heavy-Duty Applications?

421-412 Bearing’s tapered roller design efficiently distributes combined loads, enhancing durability.
The chrome steel construction resists wear, maintaining performance under high stress.
Its standard radial clearance allows for smooth operation in different conditions.
Weighing just 1.8 lb, it balances strength and ease of handling.

Engineered for Precision: 421-412 Bearing

421-412 Bearing features precise tolerances, ensuring accurate performance in demanding setups.
The single-row construction simplifies installation while maintaining load capacity.
Its ABEC-1 rating guarantees consistent quality for industrial applications.
The open design allows for easy lubrication, reducing maintenance needs.

Application

Industrial Uses of 421-412 Bearing
421-412 Bearing is commonly used in heavy machinery like construction equipment, where its tapered roller design handles combined radial and thrust loads effectively. The chrome steel construction ensures durability even in demanding environments.

Where Is 421-412 Bearing Used?
You’ll often find 421-412 Bearing in automotive applications, particularly in wheel hubs and differential systems. Its inch sizing makes it a reliable choice for vehicles following imperial measurement standards.

Built for Heavy-Duty Use: 421-412 Bearing
421-412 Bearing excels in industrial gearboxes, thanks to its robust steel cage and high dynamic load capacity. The open design allows for easy lubrication, extending its service life in continuous operations.

Automotive vs Aerospace: Applications of 421-412 Bearing
In automotive systems, 421-412 Bearing supports wheel assemblies, while in aerospace, it’s used in auxiliary equipment. Its ABEC-1 rating ensures consistent performance across different precision requirements.

Key Fields for 421-412 Bearing
421-412 Bearing is ideal for agricultural machinery, where its tapered rollers manage uneven loads from tillers and harvesters. The standard radial clearance offers flexibility for various operating conditions.

Q&A

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