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TS (Single Row Tapered Roller Bearings) (Imperial) 28678-28623

TS (Single Row Tapered Roller Bearings) (Imperial) 28678-28623

The 28678-28623 is a single-row tapered roller bearing with a 2-inch bore and 3.875-inch outer diameter, crafted from sturdy chrome steel. It handles combined loads up to 27700 lbf radially and 4950 lbf in thrust, making it versatile for various applications.

Its open design allows 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 use in gearboxes, axles, or industrial machinery where combined loads are present.

Weighing 1.9 pounds, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it’s a safe choice for most industrial environments.

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Product Parameters

  • Part Number 28678-28623
  • Brand TFL
  • Interchangeable Timken
  • Size 2" x 3.875" x 0.9688"
  • Bore Dia 2"
  • Bore Dia Tolerance +0.005" to 0
  • Outer Dia 3.875"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 0.9688"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 0.7656"
  • 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 0.03"
  • Cone Frontface Backing Diameter 2.28"
  • Cone Backface Backing Diameter 2.56"
  • Cup Frontface Backing Diameter 3.68"
  • Cup Backface Backing Diameter 3.46"
  • Cage Cone Frontface Clearance 0.1"
  • Cage Cone Backface Clearance 0.04"
  • Effective Center Location -0.13"
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number 28678
  • Cup Part Number 28623
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Cups Type Standard
  • Series 28600
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Load 27700 lbf
  • Static Radial Load 32000 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 7180 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 4950 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 1.900 lb

Features

Performance Features of 28678-28623 Bearing

28678-28623 Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 27,700 lbf, making it suitable for heavy-duty applications.
The steel cage ensures proper roller alignment, reducing friction and wear.
With a temperature range of -30° to 110°C, it performs reliably in various conditions.

How Is 28678-28623 Bearing Engineered for Reliability?

28678-28623 Bearing features a tapered roller design, providing efficient load distribution.
The chrome steel construction enhances durability, even under high stress.
Its standard radial clearance allows for smooth operation in most applications.
The bearing requires lubrication, ensuring long-lasting performance with proper maintenance.

Built for Durability: 28678-28623 Bearing

28678-28623 Bearing’s single row construction ensures stability and strength.
The chrome steel rollers and rings resist wear, extending the bearing’s service life.
With a static radial load capacity of 32,000 lbf, it handles demanding conditions.
The open design simplifies lubrication, reducing maintenance efforts.

Application

Industrial Uses of 28678-28623 Bearing
This bearing is commonly used in heavy machinery like construction equipment and agricultural gear, where its tapered roller design handles combined loads efficiently. The inch sizing makes it a straightforward fit for North American industrial standards.

In automotive applications, 28678-28623 Bearing works well in wheel hubs and drivetrains, offering reliable performance under varying loads. Its chrome steel construction ensures durability even in demanding conditions.

For conveyor systems, 28678-28623 Bearing’s open design simplifies maintenance while its standard radial clearance accommodates minor misalignments. The steel cage adds robustness for continuous operation.

Where Is 28678-28623 Bearing Used?
You’ll often find this bearing in mining equipment, where its ability to manage radial and thrust loads is crucial. The ABEC-1 rating balances precision with cost-effectiveness for rugged environments.

In forestry machinery, 28678-28623 Bearing’s tapered rollers provide stability under heavy, uneven loads. Its temperature range suits both cold and moderately hot operating conditions.

Built for Heavy-Duty Use: 28678-28623 Bearing
This model excels in oilfield equipment, handling high dynamic loads with its chrome steel rollers. The inch dimensions ensure compatibility with legacy machinery across industries.

For industrial fans, 28678-28623 Bearing’s standard radial clearance helps absorb vibrations. Its steel cage withstands prolonged use without compromising performance.

Automotive vs Aerospace: Applications of 28678-28623 Bearing
In trucks and trailers, this bearing supports axles with its combined load capacity, while its weight is optimised for ground transport. The inch sizing aligns with automotive repair standards.

Though not for aerospace, 28678-28623 Bearing serves well in ground support equipment. Its -30°C lower temperature limit suits outdoor operations in various climates.

Q&A

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