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TS (Single Row Tapered Roller Bearings) (Imperial) 34307-34478

TS (Single Row Tapered Roller Bearings) (Imperial) 34307-34478

The 34307-34478 is a single-row tapered roller bearing with a 3.0625″ bore and 4.7812″ outer diameter, crafted from durable 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 for easy lubrication, while the steel cage ensures reliable performance. The bearing operates smoothly in temperatures ranging from -30°C to 110°C.

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

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

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Product Parameters

  • Part Number 34307-34478
  • Brand TFL
  • Interchangeable Timken
  • Size 3.0625" x 4.7812" x 0.9688"
  • Bore Dia 3.0625"
  • 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 0.25"
  • Cup Backface ToClear Radius 0.08"
  • Cone Frontface Backing Diameter 4.06"
  • Cone Backface Backing Diameter 3.78"
  • 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 34307
  • 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

Performance Features of 34307-34478 Bearing

34307-34478 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 reliable performance in heavy-duty applications.
The steel cage maintains roller alignment, reducing friction and extending operational life.
With a temperature range of -30° to 110°C, it performs well in various environments.

How Is 34307-34478 Bearing Engineered for Reliability?

34307-34478 Bearing features precise cone and cup width tolerances, ensuring smooth operation under stress.
The tapered roller design distributes loads evenly, enhancing durability and reducing wear.
Its standard radial clearance allows for flexibility in different applications.
The bearing’s ABEC-1 rating confirms its consistent quality and performance.

Built for Durability: 34307-34478 Bearing

34307-34478 Bearing’s chrome steel construction resists wear, even in demanding conditions.
The single-row design simplifies installation while maintaining high load capacity.
Its effective center location of 0.06″ ensures stable and efficient operation.
With a static radial load of 30,600 lbf, it handles heavy loads with ease.

Application

Industrial Uses of 34307-34478 Bearing
The 34307-34478 Bearing is commonly used in heavy machinery like construction equipment and agricultural gear, where its tapered roller design handles combined loads efficiently. Its chrome steel construction ensures durability even in demanding environments.

In automotive applications, 34307-34478 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, 34307-34478 Bearing’s open design allows for easy lubrication, extending service life in high-use scenarios. The steel cage adds extra strength, making it suitable for continuous operation.

Where Is 34307-34478 Bearing Used?
You’ll often find 34307-34478 Bearing in mining equipment, where its robust design handles heavy radial and thrust loads. The standard radial clearance option ensures smooth operation in harsh conditions.

In power transmission systems, 34307-34478 Bearing supports shafts and gears, thanks to its tapered roller construction. The ABEC-1 rating provides a good balance of precision and cost-effectiveness for most industrial needs.

Built for Heavy-Duty Use: 34307-34478 Bearing
The 34307-34478 Bearing excels in applications like forklifts and cranes, where its high static radial load capacity is crucial. Its steel cage and chrome steel rollers offer long-lasting performance.

For railway applications, 34307-34478 Bearing’s temperature range and lubrication requirements make it a reliable choice. The interchangeable design with Timken bearings adds flexibility for maintenance and replacements.

Automotive vs Aerospace: Applications of 34307-34478 Bearing
In automotive settings, 34307-34478 Bearing is ideal for drivetrain components, balancing load capacity and size. The inch measurements simplify integration into existing systems.

For aerospace ground support equipment, 34307-34478 Bearing’s durability and standard clearance meet the demands of frequent use. Its compliance with RoHS and REACH standards ensures environmental safety.

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