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TS (Single Row Tapered Roller Bearings) (Imperial) 3478-3422

TS (Single Row Tapered Roller Bearings) (Imperial) 3478-3422

The 3478-3422 is a single-row tapered roller bearing with a 1.375″ bore and 3.1562″ outer diameter, crafted from durable chrome steel. It handles combined loads up to 23500 lbf radially and 3820 lbf thrust, making it versatile for various applications.

Its open design allows easy lubrication, while the steel cage ensures reliable performance. 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 practical replacement option. Ideal for use in gearboxes, axles, or industrial machinery where combined loads are common.

Weighing 1.6 lb, it balances strength and manageability. Compliant with RoHS and REACH standards, it meets safety and environmental requirements.

The standard radial clearance can be adjusted to C3, C4, or C5 for specific needs. Its ABEC-1 rating ensures consistent performance for general industrial use.

The tapered roller design distributes loads evenly, reducing wear. The precise tolerances and effective center location enhance stability during operation.

Perfect for maintenance or new installations, this bearing offers durability and ease of use. Its robust construction makes it a reliable choice for heavy-duty applications.

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Product Parameters

  • Part Number 3478-3422
  • Brand TFL
  • Interchangeable Timken
  • Size 1.375" x 3.1562" x 1.1563"
  • Bore Dia 1.375"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 3.1562"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 1.1721"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 0.9375"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 1.1563"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.14"
  • Cup Backface ToClear Radius 0.130"
  • Cone Frontface Backing Diameter 1.71"
  • Cone Backface Backing Diameter 1.97"
  • Cup Frontface Backing Diameter 2.94"
  • Cup Backface Backing Diameter 2.68"
  • Cage Cone Frontface Clearance 0.05"
  • Cage Cone Backface Clearance 0.04"
  • Effective Center Location -0.34"
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 3478
  • Cup Part Number 3422
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Cups Type Standard
  • Series 3400
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Load 23500 lbf
  • Static Radial Load 26800 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 6100 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 3820 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 1.6 lb

Features

Performance Features of 3478-3422 Bearing

3478-3422 Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 23,500 lbf, making it suitable for heavy-duty applications.
The steel cage ensures proper roller alignment, reducing friction and enhancing durability.
With a temperature range of -30° to 110°C, it performs reliably in various conditions.

How Is 3478-3422 Bearing Engineered for Reliability?

3478-3422 Bearing features a single-row tapered roller design, optimised for combined load handling.
The chrome steel construction provides excellent wear resistance, extending its service life.
Its standard radial clearance ensures smooth operation, even under high stress.
The bearing’s ABEC-1 rating guarantees consistent precision in performance.

Built for Durability: 3478-3422 Bearing

3478-3422 Bearing’s robust design withstands dynamic radial loads up to 23,500 lbf.
The tapered roller configuration distributes loads evenly, reducing stress on individual components.
Its chrome steel materials resist wear, maintaining performance over time.
With a weight of 1.6 lb, it balances strength and practicality for various applications.

Application

Industrial Uses of 3478-3422 Bearing
3478-3422 Bearing is commonly used in heavy machinery, such as construction equipment and agricultural gear, where its tapered roller design handles combined loads effectively. The chrome steel construction ensures durability in tough working conditions.

In automotive applications, 3478-3422 Bearing fits well in wheel hubs and drivetrains, providing reliable performance under varying loads. Its imperial sizing makes it a straightforward replacement for many North American vehicle models.

For industrial conveyor systems, 3478-3422 Bearing’s open design simplifies lubrication and maintenance, keeping operations smooth. The steel cage adds extra resilience, making it suitable for high-load scenarios.

What Makes 3478-3422 Bearing a Preferred Choice?
3478-3422 Bearing stands out in applications like gearboxes and pumps, where precise load distribution is key. Its ABEC-1 rating ensures consistent performance without overcomplicating the design.

The bearing’s temperature range of -30° to 110°C makes it versatile for both indoor and outdoor machinery. Users appreciate its balance of strength and ease of maintenance.

Built for Heavy-Duty Use: 3478-3422 Bearing
3478-3422 Bearing excels in mining equipment, where its dynamic radial load capacity of 23,500 lbf handles intense stress. The tapered rollers reduce friction, extending service life.

In forestry machinery, this bearing’s robust design copes with uneven loads and harsh environments. Its standard radial clearance offers flexibility for various operational needs.

Automotive vs Aerospace: Applications of 3478-3422 Bearing
In automotive settings, 3478-3422 Bearing is trusted for axle systems, thanks to its reliable thrust handling. The inch measurements align with many classic and modern vehicle specs.

For aerospace ground support equipment, this bearing’s durability and temperature tolerance make it a practical choice. However, its weight and ABEC rating may limit use in flight-critical components.

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