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TS (Single Row Tapered Roller Bearings) (Imperial) 34275-34478RB

TS (Single Row Tapered Roller Bearings) (Imperial) 34275-34478RB

The 34275-34478RB is a single-row tapered roller bearing with a 2.76″ bore and 4.78″ outer diameter, crafted from sturdy chrome steel. It manages combined loads up to 23000 lbf radially and 4600 lbf thrust, suitable for demanding applications.

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

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

Weighing 2.4 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 34275-34478RB
  • Brand TFL
  • Interchangeable Timken
  • Size 2.7559" x 4.7812" x 0.9688"
  • Bore Dia 2.7559"
  • 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 0.080"
  • Cup Backface ToClear Radius 0.08"
  • Cone Frontface Backing Diameter 3.74"
  • Cone Backface Backing Diameter 3.23"
  • 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 34275
  • Cup Part Number 34478RB
  • 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 2.4 lb

Features

Performance Features of 34275-34478RB Bearing

34275-34478RB 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 proper roller alignment, reducing friction and extending operational life.
With a temperature range of -30° to 110°C, it performs well in various environmental conditions.

How Is 34275-34478RB Bearing Engineered for Reliability?

34275-34478RB Bearing features a tapered roller design, optimised for handling both radial and thrust loads.
The chrome steel construction provides durability, while the standard radial clearance ensures smooth operation.
Its effective centre location of 0.06″ enhances stability during rotation.
This bearing is interchangeable with Timken models, offering flexibility in replacements.

Designed for Durability: 34275-34478RB Bearing

34275-34478RB Bearing’s single-row construction simplifies installation in various machinery setups.
The open seal type allows for easy lubrication, maintaining performance over time.
With a static radial load capacity of 30,600 lbf, it withstands demanding industrial applications.
Its ABEC-1 rating ensures consistent precision in operation.

Application

Industrial Uses of 34275-34478RB Bearing
34275-34478RB Bearing is commonly used in heavy machinery like construction equipment and agricultural gear, where its tapered roller design handles combined loads effectively. The chrome steel construction ensures durability even in tough working conditions.

In automotive applications, 34275-34478RB Bearing fits well in wheel hubs and differential systems, providing reliable performance under varying loads. Its inch sizing makes it a straightforward replacement for many North American vehicle models.

For industrial conveyor systems, 34275-34478RB Bearing’s open design simplifies lubrication and maintenance, reducing downtime. The steel cage adds extra strength, making it suitable for high-load scenarios.

Where Is 34275-34478RB Bearing Used?
You’ll often find 34275-34478RB Bearing in mining equipment, where its ability to handle radial and thrust loads is crucial. The standard radial clearance offers flexibility for different operational needs.

In power transmission systems, 34275-34478RB Bearing supports shafts and gears, ensuring smooth rotation. Its ABEC-1 rating provides a balance of precision and cost-effectiveness for general industrial use.

Built for Heavy-Duty Use: 34275-34478RB Bearing
34275-34478RB Bearing excels in applications like forklifts and cranes, where its robust design withstands frequent load changes. The tapered rollers distribute stress evenly, extending service life.

For railway maintenance vehicles, 34275-34478RB Bearing’s temperature tolerance ensures reliability in varying climates. The steel cage and chrome steel components resist wear, even with constant use.

Automotive vs Aerospace: Applications of 34275-34478RB Bearing
In automotive settings, 34275-34478RB Bearing is ideal for drivetrain components, offering a balance of strength and affordability. Its compatibility with Timken models simplifies sourcing.

For aerospace ground support equipment, 34275-34478RB Bearing provides dependable performance without the need for specialised materials. The inch measurements align with many US-made machinery standards.

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