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TS (Single Row Tapered Roller Bearings) (Imperial) 34300A-34478

TS (Single Row Tapered Roller Bearings) (Imperial) 34300A-34478

The 34300A-34478 is a single-row tapered roller bearing with a 3″ bore and 4.7812″ outer diameter, crafted from robust 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 durability under heavy use. The bearing operates smoothly in temperatures ranging from -30°C to 110°C.

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

Weighing 2.1 lb, it’s sturdy yet manageable for its size. Compliant with RoHS and REACH standards for safe and eco-friendly use.

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Product Parameters

  • Part Number 34300A-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 0.080"
  • Cup Backface ToClear Radius 0.08"
  • Cone Frontface Backing Diameter 4.06"
  • Cone Backface Backing Diameter 3.39"
  • 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 34300A
  • 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

Why Choose 34300A-34478 Bearing for Precision Tasks?

34300A-34478 Bearing is crafted with chrome steel rings and rollers, ensuring durability under combined loads.
Its dynamic radial load capacity reaches 23,000 lbf, making it suitable for demanding industrial applications.

The steel cage maintains roller alignment, reducing friction and enhancing performance.
With a temperature range of -30° to 110°C, it operates reliably in various conditions.

34300A-34478 Bearing features standard radial clearance, offering flexibility for different installation needs.
Its ABEC-1 rating ensures consistent precision for general engineering applications.

Application

Industrial Uses of 34300A-34478 Bearing
34300A-34478 Bearing is commonly used in heavy machinery, such as construction equipment and agricultural gear, where its tapered roller design handles combined loads effectively. The inch sizing makes it a good fit for North American industrial applications.

In automotive settings, 34300A-34478 Bearing works well in wheel hubs and differentials, thanks to its robust chrome steel construction. Its standard radial clearance ensures smooth performance even under varying load conditions.

For conveyor systems, 34300A-34478 Bearing’s single-row design provides reliable support for high-capacity operations. The steel cage adds durability, making it suitable for continuous use in demanding environments.

What Makes 34300A-34478 Bearing a Preferred Choice?
34300A-34478 Bearing stands out in mining equipment due to its ability to manage both radial and thrust loads efficiently. The open seal type allows for easy lubrication, extending its service life.

In railway applications, 34300A-34478 Bearing’s tapered rollers ensure stable performance under heavy loads and vibrations. Its ABEC-1 rating balances precision and cost-effectiveness for these uses.

Built for Heavy-Duty Use: 34300A-34478 Bearing
34300A-34478 Bearing is ideal for wind turbine gearboxes, where its dynamic load capacity handles fluctuating forces. The chrome steel rollers resist wear, even in harsh weather conditions.

For oil and gas machinery, 34300A-34478 Bearing’s temperature range (-30° to 110°C) ensures reliability in extreme environments. Its interchangeable design with Timken bearings simplifies maintenance.

Automotive vs Aerospace: Applications of 34300A-34478 Bearing
In automotive drivetrains, 34300A-34478 Bearing supports high-torque demands with its 23,000 lbf dynamic radial load rating. The inch measurements align with many US-made vehicle specifications.

For aerospace ground equipment, 34300A-34478 Bearing’s standard radial clearance accommodates thermal expansion during operation. Its steel cage provides lightweight durability for auxiliary systems.

Q&A

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