lianxidianhua +86 15806631151 send-sms info@sdtflbearing.com
/
/
28921 Single Cups (Imperial)
28921 Single Cups (Imperial)

28921 Single Cups (Imperial)

The 28921 is a single cup bearing with an outer diameter of 3.937 inches and a width of 0.7813 inches, crafted from durable chrome steel. It fits well in tapered roller assemblies and operates smoothly in temperatures from -30°C to 110°C.

Its standard cup design ensures easy installation and compatibility with Timken bearings, making it a practical choice for replacements. The ABEC-1 rating offers reliable precision for general industrial use.

The cup’s sturdy construction handles moderate loads, while the chrome steel material provides good wear resistance. It’s compliant with RoHS and REACH standards, ensuring safe and eco-friendly use.

Ideal for applications like vehicle axles or machinery where tapered roller bearings are needed. Its interchangeability with Timken models adds versatility for maintenance and repairs.

Get A Free Quote

"*" indicates required fields

This field is for validation purposes and should be left unchanged.

Product Parameters

  • Part Number 28921
  • Brand TFL
  • Interchangeable Timken
  • Size 3.50" x 3.937" x 0.7813"
  • Outer Dia 3.937"
  • Outer Dia Tolerance +0.001" to 0
  • Cup Width 0.7813"
  • Cup Width Tolerance +0.002" to -0.01
  • Cup Backface ToClear Radius 0.13"
  • Cup Frontface Backing Diameter 3.82"
  • Cup Backface Backing Diameter 3.50"
  • System of Measurement Inch
  • Roller Bearing Type Tapered
  • Type Cups
  • Bearing Part Number 28980-28921 , 28985-28921 , 28990-28921 , 28995-28921 , 28980-28921-B , 28985-28921-B
  • Cups Type Standard
  • Series 28900
  • Ring Material Chrome Steel
  • Temperature Range -30° to 110 °C
  • ABEC Rating ABEC-1
  • RoHS Compliant
  • REACH Compliant

Features

How Is 28921 Bearing Engineered for Reliability?

28921 Bearing is crafted from chrome steel, offering durability and resistance to wear in demanding conditions.
Its tapered roller design ensures efficient load distribution, enhancing performance under stress.

The cup width tolerance of +0.002″ to -0.01″ allows for precise fitting, reducing operational issues.
With a temperature range of -30° to 110°C, it performs reliably in varied environments.

The standard cup type and ABEC-1 rating make it suitable for general industrial applications.
Its interchangeable design with Timken bearings ensures easy replacement and compatibility.

Application

Industrial Uses of 28921 Bearing
28921 Bearing is commonly used in heavy machinery like construction equipment and agricultural tools, where its tapered design handles radial and axial loads efficiently. The chrome steel construction ensures durability in tough working conditions.

What Makes 28921 Bearing a Preferred Choice?
In automotive applications, 28921 Bearing fits well in wheel hubs and differential systems, providing smooth rotation under heavy loads. Its inch sizing makes it compatible with many North American vehicle models.

Built for Heavy-Duty Use: 28921 Bearing
For industrial conveyor systems, 28921 Bearing offers reliable performance with its standard cup design, simplifying maintenance. The ABEC-1 rating ensures consistent precision for general machinery needs.

Automotive vs Industrial: Applications of 28921 Bearing
In trucks and buses, 28921 Bearing supports axle assemblies, while in factory equipment, it excels in gearboxes and pulley systems. Its interchangeable design with Timken models adds versatility.

Essential Roles of 28921 Bearing
28921 Bearing is a go-to for farm machinery like tractors, where its tapered rollers manage uneven loads effortlessly. The temperature range of -30° to 110°C suits both indoor and outdoor use.

Q&A

SEND INQUIRY

"*" indicates required fields

This field is for validation purposes and should be left unchanged.