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TS (Single Row Tapered Roller Bearings) (Imperial) 34306-34478RB

TS (Single Row Tapered Roller Bearings) (Imperial) 34306-34478RB

The 34306-34478RB 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 27200 lbf radially and 5450 lbf thrust, making it a sturdy choice for heavy-duty applications.

Its open design allows for easy lubrication, while the steel cage ensures reliable performance under stress. 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 use in industrial machinery or automotive systems where combined loads are common.

Weighing just 2lb, it balances strength and manageability. Compliant with RoHS and REACH standards for safe and eco-friendly use.

The 34306-34478RB features a standard radial clearance, with options for C3, C4, or C5 available. Its tapered roller design ensures even load distribution, reducing wear over time.

With an ABEC-1 rating, it provides dependable precision for general industrial use. The bearing’s effective center location of 0.06″ helps maintain alignment in dynamic applications.

Suitable for gearboxes, axles, or conveyor systems, this bearing is built to last. Its chrome steel rollers and rings offer excellent resistance to wear and fatigue.

Easy to install and maintain, it’s a reliable choice for engineers and maintenance teams alike. The standard cup type ensures compatibility with common housing designs.

This tapered roller bearing is designed for straightforward installation, with clearances marked for both cone and cup. Its robust construction handles high radial and thrust loads without compromising performance.

The steel cage keeps rollers securely in place, even at high speeds. With a dynamic radial rating of 7060 lbf for 90 million revolutions, it’s built for longevity.

Perfect for applications requiring precise alignment and durability, such as agricultural machinery or construction equipment. The bearing’s dimensions and tolerances are carefully controlled for consistent quality.

Lubrication is required, but the open design makes regreasing simple. A practical solution for demanding environments where reliability is key.

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Product Parameters

  • Part Number 34306-34478RB
  • 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 0.14"
  • Cup Backface ToClear Radius 0.08"
  • Cone Frontface Backing Diameter 4.06"
  • Cone Backface Backing Diameter 3.58"
  • 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 34306
  • 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 27200 lbf
  • Static Radial Load 30600 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 7060 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 5450 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 34306-34478RB Bearing

34306-34478RB Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 27,200 lbf, making it suitable for heavy-duty applications.
The steel cage ensures proper roller alignment, enhancing durability and reducing wear.
With a temperature range of -30° to 110°C, it performs reliably in various conditions.

How Does 34306-34478RB Bearing Resist Wear?

34306-34478RB Bearing’s tapered roller design distributes loads evenly, minimising wear over time.
The chrome steel construction provides excellent hardness and fatigue resistance.
Its standard radial clearance ensures smooth operation, even under heavy radial and thrust loads.
Regular lubrication further extends the bearing’s service life.

Engineered for Precision: 34306-34478RB Bearing

34306-34478RB Bearing features precise tolerances, with bore and outer diameter variations within +0.001″.
The effective center location of 0.06″ ensures accurate alignment in assembly.
ABEC-1 rating guarantees consistent performance for general precision applications.
This bearing maintains reliability while accommodating both radial and thrust loads.

Steel vs Ceramic Bearings: Strengths of 34306-34478RB Bearing

34306-34478RB Bearing uses chrome steel for both rings and rollers, offering excellent strength-to-weight ratio.
The steel construction provides better impact resistance compared to ceramic alternatives.
With a static radial load capacity of 30,600 lbf, it handles heavy loads effectively.
Its material composition makes it more cost-effective for industrial applications.

Application

Industrial Uses of 34306-34478RB Bearing
The 34306-34478RB 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.

Where Is 34306-34478RB Bearing Used?
You’ll often find 34306-34478RB Bearing in automotive applications, such as truck wheel hubs, where its robust design supports both radial and thrust loads. The inch sizing makes it a straightforward fit for many North American vehicle models.

Built for Heavy-Duty Use: 34306-34478RB Bearing
In conveyor systems, 34306-34478RB Bearing provides reliable performance, thanks to its steel cage and standard radial clearance. The open design simplifies lubrication, which is essential for continuous operation.

Automotive vs Aerospace: Applications of 34306-34478RB Bearing
While 34306-34478RB Bearing is popular in automotive wheel assemblies, it’s also suitable for aerospace ground support equipment. Its ABEC-1 rating balances precision and cost-effectiveness for these varied uses.

Perfect Fit for Automation: 34306-34478RB Bearing
In automated production lines, 34306-34478RB Bearing ensures smooth motion in robotic arms and assembly units. The tapered rollers reduce friction, making it ideal for repetitive, high-load tasks.

Q&A

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