+86 15806631151 [email protected]
TFL BEARINGS
REQUEST A QUOTE
TS (Single Row Tapered Roller Bearings) (Imperial) 78250AC-78551

TS (Single Row Tapered Roller Bearings) (Imperial) 78250AC-78551

The 78250AC-78551 is a single-row tapered roller bearing with a 2.5″ bore and 5.513″ outer diameter, crafted from sturdy chrome steel. It handles combined loads up to 53200 lbf radial and 20400 lbf thrust, making it versatile for heavy-duty use.

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

This model is interchangeable with Timken bearings, offering a reliable replacement option. Ideal for applications like automotive axles or construction equipment where robust performance is needed.

Weighing 5.5 lb, it’s built to last while meeting RoHS and REACH standards for safety and compliance. The standard radial clearance ensures easy installation and maintenance.

Get A Free Quote
    Description Features Application Q&A Featured Products Our Process

Product Parameters

  • Part Number 78250AC-78551
  • Brand TFL
  • Interchangeable Timken
  • Size 2.5" x 5.513" x 1.4375"
  • Bore Dia 2.5"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 5.513"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 1.3085"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 0.926"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 1.4375"
  • Width Tolerance +0.008" to 0
  • Cone Backface ToClear Radius 0.2"
  • Cup Backface ToClear Radius 0.090"
  • Cone Frontface Backing Diameter 3.7"
  • Cone Backface Backing Diameter 3.66"
  • Cup Frontface Backing Diameter 5.22"
  • Cup Backface Backing Diameter 4.61"
  • Cage Cone Frontface Clearance 0.21"
  • Cage Cone Backface Clearance 0.22"
  • Effective Center Location 0.33"
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 78250AC
  • Cup Part Number 78551
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Cups Type Standard
  • Series 78000C
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Load 53200 lbf
  • Static Radial Load 52600 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 13800 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 20400 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 5.5 lb

Features

Performance Features of 78250AC-78551 Bearing

78250AC-78551 Bearing is built with chrome steel rings and rollers, offering robust performance under combined loads.
Its dynamic radial load capacity reaches 53,200 lbf, making it suitable for heavy-duty applications.
The steel cage ensures proper roller alignment, enhancing durability and reducing friction.
With a temperature range of -30° to 110°C, it performs reliably in various environments.

How Is 78250AC-78551 Bearing Engineered for Reliability?

78250AC-78551 Bearing features a single-row tapered roller design, optimised for combined load handling.
The chrome steel construction provides excellent resistance to wear and fatigue.
Its standard radial clearance options (C3/C4/C5) allow for flexibility in different applications.
The bearing maintains performance even at high speeds, thanks to its precise engineering.

Designed for Durability: 78250AC-78551 Bearing

78250AC-78551 Bearing’s tapered roller design ensures efficient load distribution, reducing stress on components.
The steel cage maintains roller positioning, preventing misalignment and extending service life.
With a static radial load capacity of 52,600 lbf, it handles demanding conditions with ease.
Its ABEC-1 rating confirms consistent precision in manufacturing.

Steel vs Ceramic Bearings: Strengths of 78250AC-78551 Bearing

78250AC-78551 Bearing uses chrome steel for both rings and rollers, offering a balance of strength and affordability.
The material choice provides good resistance to wear while maintaining dimensional stability.
Unlike ceramic options, this bearing is more cost-effective for industrial applications.
Its steel construction also allows for easier maintenance and lubrication.

Why Choose 78250AC-78551 Bearing for Precision Tasks?

78250AC-78551 Bearing delivers consistent performance with its precisely machined tapered rollers.
The chrome steel components ensure minimal deformation under load, maintaining accuracy.
With effective centre location of 0.33″, it provides stable rotation in precision assemblies.
The bearing’s standard radial clearance options accommodate various precision requirements.

Application

Industrial Uses of 78250AC-78551 Bearing
78250AC-78551 Bearing is commonly used in heavy machinery, such as construction equipment and mining tools, where its tapered roller design handles combined radial and thrust loads effectively. The chrome steel construction ensures durability even in demanding environments.

Where Is 78250AC-78551 Bearing Used?
In automotive applications, 78250AC-78551 Bearing supports wheel hubs and drivetrains, providing reliable performance under varying loads. Its imperial sizing makes it a preferred choice for North American vehicle manufacturers.

Built for Heavy-Duty Use: 78250AC-78551 Bearing
78250AC-78551 Bearing excels in industrial gearboxes, where its single-row design simplifies maintenance and reduces downtime. The steel cage adds extra strength, making it suitable for high-load scenarios.

Automotive vs Aerospace: Applications of 78250AC-78551 Bearing
78250AC-78551 Bearing is versatile enough for both automotive drivetrains and aerospace landing gear systems. Its tapered rollers distribute loads evenly, ensuring smooth operation in both high-speed and high-pressure conditions.

Perfect Fit for Automation: 78250AC-78551 Bearing
78250AC-78551 Bearing is ideal for robotic arms and automated assembly lines, where precision and reliability are key. The open seal design allows for easy lubrication, extending its service life.

Q&A

SEND INQUIRY