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TS (Single Row Tapered Roller Bearings) (Imperial) 34304-34478

TS (Single Row Tapered Roller Bearings) (Imperial) 34304-34478

The 34304-34478 is a single-row tapered roller bearing with a 3.0455″ 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. The bearing operates smoothly in temperatures ranging from -30°C to 110°C, suitable for demanding environments.

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

Weighing 2 lb, it balances strength and manageability. Compliant with RoHS and REACH standards, it meets safety and environmental requirements.

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Product Parameters

  • Part Number 34304-34478
  • Brand TFL
  • Interchangeable Timken
  • Size 3.0455" x 4.7812" x 0.9688"
  • Bore Dia 3.0455"
  • Bore Dia Tolerance +0.001" 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 4.06"
  • Cone Backface Backing Diameter 3.54"
  • 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 34304
  • 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 lb

Features

How Is 34304-34478 Bearing Engineered for Reliability?

34304-34478 Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 23,000 lbf, ensuring dependable performance in tough conditions.
The steel cage maintains proper roller alignment, reducing friction and extending operational life.
With a temperature range of -30° to 110°C, it performs reliably in various environments.

What Makes 34304-34478 Bearing Suitable for High-Temperature Applications?

34304-34478 Bearing handles temperatures up to 110°C, making it ideal for demanding industrial settings.
The chrome steel construction ensures durability and consistent performance under thermal stress.
Its tapered roller design efficiently distributes loads, reducing heat buildup.
Standard radial clearance options provide flexibility for different operating conditions.

Designed for Durability: 34304-34478 Bearing

34304-34478 Bearing features a robust single-row tapered roller design for long-lasting performance.
The chrome steel components resist wear, even under heavy dynamic radial loads of 23,000 lbf.
Precision tolerances ensure smooth operation, while the steel cage enhances stability.
With ABEC-1 rating, it balances quality and value for industrial applications.

Steel vs Ceramic Bearings: Strengths of 34304-34478 Bearing

34304-34478 Bearing uses chrome steel for its rollers and rings, providing excellent load-bearing capacity.
This material choice ensures reliable performance under static radial loads up to 30,600 lbf.
The steel cage offers durability, while the open design simplifies lubrication.
Its tapered roller construction efficiently manages both radial and thrust loads.

Performance Features of 34304-34478 Bearing

34304-34478 Bearing combines a tapered roller design with precise engineering for smooth operation.
The chrome steel components withstand heavy loads, with a dynamic thrust rating of 4,600 lbf.
Standard radial clearance options adapt to various applications, ensuring reliable performance.
Its 34000 series construction delivers consistent quality for industrial machinery.

Application

Industrial Uses of 34304-34478 Bearing
The 34304-34478 Bearing is commonly used in heavy machinery like construction equipment, where its tapered roller design handles combined loads efficiently. Its chrome steel construction ensures durability even in demanding environments.

In automotive applications, 34304-34478 Bearing fits well in wheel hubs and differential systems, providing reliable performance under varying loads. The inch sizing makes it compatible with many North American vehicle models.

For industrial conveyor systems, 34304-34478 Bearing’s open design allows for easy lubrication, extending its service life. The steel cage adds strength, making it suitable for high-load scenarios.

Where Is 34304-34478 Bearing Used?
You’ll often find 34304-34478 Bearing in agricultural machinery, where its robust design handles rough conditions. The tapered rollers manage both radial and thrust loads effectively.

In mining equipment, 34304-34478 Bearing’s durability stands out, especially in crushers and screens. Its standard radial clearance ensures smooth operation even under heavy stress.

Built for Heavy-Duty Use: 34304-34478 Bearing
34304-34478 Bearing excels in forestry equipment, where its combined load capacity is crucial. The chrome steel rollers resist wear, even in dusty or wet conditions.

For railway applications, 34304-34478 Bearing’s reliability keeps axles and gearboxes running smoothly. The ABEC-1 rating ensures consistent performance over long distances.

Automotive vs Aerospace: Applications of 34304-34478 Bearing
In automotive drivetrains, 34304-34478 Bearing handles high torque and varying speeds. Its inch measurements align with many standard vehicle designs.

For aerospace ground support equipment, 34304-34478 Bearing’s temperature range suits outdoor use. The steel cage provides stability during frequent load changes.

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