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TS (Single Row Tapered Roller Bearings) (Imperial) 3478-3431

TS (Single Row Tapered Roller Bearings) (Imperial) 3478-3431

The 3478-3431 is a single-row tapered roller bearing with a 1.375″ bore and 3.25″ outer diameter, crafted from sturdy chrome steel. It manages combined loads up to 23500 lbf radially and 3820 lbf thrust, suitable for demanding applications.

Its open design allows for easy lubrication, while the steel cage ensures durability. The bearing operates smoothly in temperatures ranging from -30°C to 110°C.

Interchangeable with Timken bearings, it’s a practical choice for replacements. Ideal for heavy machinery or automotive uses where combined loads are common.

Weighing 1.7 lb, it’s robust yet manageable. Compliant with RoHS and REACH standards for safe and reliable performance.

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Product Parameters

  • Part Number 3478-3431
  • Brand TFL
  • Interchangeable Timken
  • Size 1.375" x 3.25" x 1.1563"
  • Bore Dia 1.375"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 3.25"
  • 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 2.99"
  • Cup Backface Backing Diameter 2.72"
  • 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 3431
  • 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 1.7 lb

Features

Performance Features of 3478-3431 Bearing

3478-3431 Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 23,500 lbf, ensuring reliable performance in various applications.

The steel cage maintains proper roller alignment, reducing friction and extending operational life.
With a temperature range of -30° to 110°C, it performs well in diverse environmental conditions.

3478-3431 Bearing requires lubrication, which helps maintain smooth operation over time.
Its standard radial clearance makes it versatile for different industrial needs.

Application

Industrial Uses of 3478-3431 Bearing
The 3478-3431 Bearing is a reliable choice for heavy machinery, such as construction equipment and agricultural gear, where combined loads are common. Its tapered roller design handles both radial and thrust forces efficiently.

What Makes 3478-3431 Bearing a Preferred Choice?
In automotive applications, 3478-3431 Bearing works well in wheel hubs and differentials, thanks to its durable chrome steel construction. The imperial sizing ensures compatibility with many North American vehicle models.

Built for Heavy-Duty Use: 3478-3431 Bearing
For industrial conveyor systems, 3478-3431 Bearing offers smooth operation under continuous load. Its open design allows for easy lubrication, extending service life in demanding environments.

Automotive vs Industrial: Applications of 3478-3431 Bearing
In trucks, 3478-3431 Bearing supports axles and transmissions, while in factories, it keeps conveyor belts running smoothly. The bearing’s standard radial clearance adapts well to varying operational conditions.

Why Is 3478-3431 Bearing Essential in Machinery?
3478-3431 Bearing’s steel cage and chrome steel rollers provide strength for mining equipment and gearboxes. Its ABEC-1 rating ensures consistent performance without over-engineering for most applications.

Q&A

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