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TS (Single Row Tapered Roller Bearings) (Imperial) K28880-K28820

TS (Single Row Tapered Roller Bearings) (Imperial) K28880-K28820

The K28880-K28820 is a single-row tapered roller bearing with a 9.75″ bore and 12″ outer diameter, built from sturdy chrome steel. It handles combined loads up to 35400 lbf radially and 5100 lbf thrust, making it suitable for heavy-duty applications.

Its open design allows for easy lubrication, while the steel cage ensures durability under high stress. The bearing operates smoothly in temperatures ranging from -30°C to 110°C.

Interchangeable with Timken bearings, this model is a reliable choice for replacements in industrial machinery. Ideal for use in gearboxes, axles, or other equipment where combined loads are common.

Weighing 7.000 lb, it’s robust and built to last. Compliant with RoHS and REACH standards for safe and environmentally friendly use.

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Product Parameters

  • Part Number K28880-K28820
  • Brand TFL
  • Interchangeable Timken
  • Size 9.75" x 12" x 0.875"
  • Bore Dia 9.75"
  • Bore Dia Tolerance +0.001" to 0
  • Outer Dia 12"
  • Outer Dia Tolerance +0.001" to 0
  • Cone Width 0.875"
  • Cone Width Tolerance +0.003" to -0.01
  • Cup Width 0.625"
  • Cup Width Tolerance +0.002" to -0.01
  • Width 0.875"
  • Width Tolerance +0.014" to -0.01"
  • Cone Backface ToClear Radius 0.06"
  • Cup Backface ToClear Radius 0.06"
  • Cone Frontface Backing Diameter 11.26"
  • Cone Backface Backing Diameter 10.16"
  • Cup Frontface Backing Diameter 11.69"
  • Cup Backface Backing Diameter 11.46"
  • Cage Cone Frontface Clearance 0.12"
  • Cage Cone Backface Clearance 0.03"
  • Effective Center Location 0.68"
  • System of Measurement Inch
  • Type Bearing
  • Cone Part Number K28880
  • Cup Part Number K28820
  • Bearing Type Roller
  • Roller Bearing Type Tapered
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Cups Type Standard
  • Series 28800
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Load 35400 lbf
  • Static Radial Load 83900 lbf
  • Dynamic Radial Rating(90 Million Revolutions)(C90) 9170 lbf
  • Dynamic Thrust Rating(90 Million Revolutions)(Ca90) 5100 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 7.000 lb

Features

How Does K28880-K28820 Bearing Handle Combined Loads?

K28880-K28820 Bearing is built with chrome steel rings and rollers, offering strong resistance to both radial and thrust loads.
Its dynamic radial load capacity reaches 35,400 lbf, ensuring reliable performance in heavy-duty applications.
The steel cage maintains roller alignment, reducing friction and extending operational life.
With a temperature range of -30° to 110°C, it performs well in various environmental conditions.

Why Choose K28880-K28820 Bearing for Precision Tasks?

K28880-K28820 Bearing features precise tolerances, with bore and outer diameter tolerances as tight as +0.001″ to 0.
The tapered roller design ensures smooth operation under combined loads, ideal for precision machinery.
Its effective center location of 0.68″ enhances stability and load distribution.
The standard radial clearance option allows for flexibility in different applications.

Engineered for Reliability: K28880-K28820 Bearing

K28880-K28820 Bearing’s chrome steel construction provides excellent durability and wear resistance.
The single-row tapered roller design efficiently handles combined loads, making it versatile for various uses.
With a static radial load capacity of 83,900 lbf, it ensures long-term reliability.
Its ABEC-1 rating confirms consistent performance in industrial applications.

Material Composition of K28880-K28820 Bearing

K28880-K28820 Bearing uses high-quality chrome steel for both rings and rollers, ensuring strength and longevity.
The steel cage is designed to withstand high loads while maintaining roller alignment.
This material choice also provides good resistance to wear and fatigue.
The bearing’s construction meets RoHS and REACH compliance standards for environmental safety.

Operational Limits of K28880-K28820 Bearing

K28880-K28820 Bearing operates effectively within a temperature range of -30° to 110°C.
Its dynamic thrust rating of 5,100 lbf ensures reliable performance under varying load conditions.
The bearing requires regular lubrication to maintain optimal function and longevity.
With a weight of 7.000 lb, it is robust yet manageable for industrial applications.

Application

Industrial Uses of K28880-K28820 Bearing
K28880-K28820 Bearing is commonly used in heavy machinery like mining equipment and construction vehicles, where its tapered roller design handles combined radial and thrust loads effectively. The chrome steel construction ensures durability even in demanding environments.

In automotive applications, K28880-K28820 Bearing supports large axles and wheel hubs, particularly in trucks and trailers. Its imperial sizing makes it a straightforward replacement for Timken equivalents in North American vehicles.

For industrial conveyor systems, K28880-K28820 Bearing’s open design allows for easy lubrication, extending service life in high-load scenarios. The steel cage provides added strength, reducing wear over time.

Where Is K28880-K28820 Bearing Used?
You’ll often find K28880-K28820 Bearing in agricultural machinery, such as tractors and harvesters, where its robust design handles uneven loads. The standard radial clearance ensures smooth operation in varying conditions.

In railway applications, K28880-K28820 Bearing supports freight car axles, thanks to its high static radial load capacity. The ABEC-1 rating balances precision and cost-effectiveness for these heavy-duty uses.

Built for Heavy-Duty Use: K28880-K28820 Bearing
K28880-K28820 Bearing excels in forestry equipment like log skidders, where its tapered rollers manage shock loads. The inch measurements simplify maintenance for operators familiar with imperial tools.

For oilfield machinery, K28880-K28820 Bearing’s temperature range (-30° to 110°C) suits both Arctic and desert operations. Its steel cage withstands the vibrations common in drilling rigs.

Automotive vs Aerospace: Applications of K28880-K28820 Bearing
In automotive settings, K28880-K28820 Bearing typically handles wheel loads in heavy vehicles, while aerospace ground equipment uses it for landing gear servicing tools. The difference lies in load frequency rather than design.

For industrial presses, K28880-K28820 Bearing’s 83900 lbf static radial load capacity prevents deformation during high-force operations. The open seal type simplifies regreasing during routine maintenance.

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