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TS (Single Row Tapered Roller Bearings) (Imperial) 34301-34478

TS (Single Row Tapered Roller Bearings) (Imperial) 34301-34478

The 34301-34478 is a single-row tapered roller bearing with a 3″ bore and 4.7812″ outer diameter, crafted from sturdy chrome steel. It handles combined loads up to 23000 lbf radially and 4600 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 from -30°C to 110°C, suitable for demanding environments.

This model is interchangeable with Timken bearings, offering a reliable replacement option. Ideal for industrial machinery, gearboxes, or automotive systems where combined loads are common.

Weighing 2.1 lb, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it meets safety and environmental requirements.

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Product Parameters

  • Part Number 34301-34478
  • Brand TFL
  • Interchangeable Timken
  • Size 3" x 4.7812" x 0.9688"
  • Bore Dia 3"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 4.7812"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 0.906"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 0.6875"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 0.9688"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.14"
  • Cup Backface ToClear Radius 0.08"
  • Cone Frontface Backing Diameter 4.02"
  • Cone Backface Backing Diameter 3.5"
  • Cup Frontface Backing Diameter 4.60"
  • Cup Backface Backing Diameter 4.33"
  • Cage Cone Frontface Clearance 0.1"
  • Cage Cone Backface Clearance 0.09"
  • Effective Center Location 0.06"
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 34301
  • Cup Part Number 34478
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Cups Type Standard
  • Series 34000
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Load 23000 lbf
  • Static Radial Load 30600 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 5960 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 4600 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 2.1 lb

Features

Performance Features of 34301-34478 Bearing

34301-34478 Bearing is constructed with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 23,000 lbf, ensuring reliable performance in demanding applications.

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

34301-34478 Bearing requires lubrication, ensuring smooth operation and reduced wear over time.
Its standard radial clearance makes it versatile for different industrial needs.

The tapered roller design efficiently handles both radial and thrust loads.
This makes 34301-34478 Bearing suitable for a wide range of heavy-duty applications.

Application

Industrial Uses of 34301-34478 Bearing
This bearing is commonly used in heavy machinery like construction equipment and agricultural gear, where its tapered roller design handles combined loads effectively. The imperial sizing makes it a straightforward fit for North American industrial applications.

Where Is 34301-34478 Bearing Used?
You’ll often find 34301-34478 Bearing in truck wheel hubs, where its durability manages both radial and thrust loads. The chrome steel construction ensures long service life even under rough road conditions.

Built for Heavy-Duty Use: 34301-34478 Bearing
In mining equipment, 34301-34478 Bearing stands up to harsh environments thanks to its robust steel cage and tapered rollers. The open design allows for easy lubrication, extending its operational lifespan.

Automotive vs Aerospace: Applications of 34301-34478 Bearing
While 34301-34478 Bearing fits well in vehicle drivetrains, its precision also suits aerospace landing gear components. The ABEC-1 rating balances performance and cost for these demanding fields.

Perfect Fit for Automation: 34301-34478 Bearing
In automated conveyor systems, 34301-34478 Bearing provides smooth motion control with its tapered roller alignment. The standard radial clearance offers reliable performance without frequent adjustments.

Q&A

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