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3478 Single Cones (Imperial)
3478 Single Cones (Imperial)

3478 Single Cones (Imperial)

The 3478 single cones are tapered roller bearings designed for combined loads, with a 1.375″ bore and made from durable chrome steel. They handle dynamic radial loads up to 23500 lbf and are built to last in tough conditions.

Their open design allows for easy maintenance, while the steel cage ensures smooth operation. The bearings can operate in temperatures ranging from -30°C to 110°C, making them versatile for various environments.

These cones are part of the 3400 series and are interchangeable with Timken bearings, offering a reliable replacement option. Ideal for heavy-duty applications like industrial machinery or vehicle axles where combined loads are common.

Compliant with RoHS and REACH standards, they come with standard radial clearance but are also available in C3, C4, or C5 options for different needs. Their robust construction ensures long service life even under demanding conditions.

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Product Parameters

  • Part Number 3478
  • Brand TFL
  • Interchangeable Brand Timken
  • System of Measurement Inch
  • Type Cones
  • Bearing Part Number 3478-3420 , 3478-3422 , 3478-3426 , 3478-3431 , 3478-3420-B
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Series 3400
  • Bore Dia 1.375"
  • Bore Dia Tolerance +0.005" to 0
  • Cone Width 1.1721"
  • Cone Width Tolerance +0.003" to -0.01
  • Cone Backface ToClear Radius 0.14"
  • Cone Frontface Backing Diameter 1.71"
  • Cone Backface Backing Diameter 1.97"
  • Cage Cone Frontface Clearance 0.05"
  • Cage Cone Backface Clearance 0.04"
  • Effective Center Location -0.34"
  • Ring 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 Radial Rating(Two Row 1 Million Revolutions)(C1) 41000 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 3820 lbf
  • Dynamic Radial Rating(Two Row 90 Million Revolutions)(C90) 10600 lbf
  • Temperature Range -30° to 110 °C
  • ABEC Rating ABEC-1
  • Radial Clearance Standard (Available in C3/C4/C5)
  • RoHS Compliant
  • REACH Compliant

Features

Performance Features of 3478 Bearing

3478 Bearing is constructed with chrome steel rings, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 23,500 lbf, ensuring reliable performance in heavy-duty applications.

The tapered roller design of 3478 Bearing provides smooth operation and efficient load distribution.
With a temperature range of -30° to 110°C, it performs well in various environmental conditions.

3478 Bearing’s steel cage maintains roller alignment, reducing wear and extending service life.
Its standard radial clearance options allow for flexibility in different operational requirements.

Application

Industrial Uses of 3478 Single Cones
3478 Single Cones are commonly used in heavy machinery like construction equipment and agricultural vehicles, where their tapered roller design handles combined loads effectively. The chrome steel construction ensures durability in demanding environments.

Where Is 3478 Single Cones Used?
You’ll often find 3478 Single Cones in automotive applications, particularly in wheel hubs and differential systems. Their inch sizing makes them a reliable choice for older or imperial-based vehicle models.

Built for Heavy-Duty Use: 3478 Single Cones
These cones excel in industrial gearboxes, providing smooth operation under high radial and thrust loads. The steel cage adds extra strength, making them suitable for prolonged use in harsh conditions.

Automotive vs Industrial: Applications of 3478 Single Cones
In automotive settings, 3478 Single Cones support wheel bearings and transmissions, while in industrial settings, they’re ideal for conveyor systems and pulpits. Their versatility makes them a go-to for various load requirements.

Essential Roles of 3478 Single Cones
3478 Single Cones are key in mining equipment, where their robust design withstands extreme loads and vibrations. The standard radial clearance ensures consistent performance even under heavy stress.

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