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NTN 28820 is an inch series tapered roller bearing cup for single row assemblies. It features a straight bore and is designed for use with corresponding cones in industrial gearboxes, axle housings, and heavy machinery.
MODEL 28820
$836.82 Each
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a (Effective Load Center)
0.6800 in
B (in)
9.7500
Bore type
Round
Bore Type
Round
Cone Number
28880
Configuration
One
Cup Number
28820E1
D (in)
12.0000
Dynamic load rating
33000 lbf
Dynamic Load Rating
33000 lbf
e (Axial Load Factor)
0.32
Enclosure
Open
I.D.
11.1022 in
Lubrication
w/o Oil Hole
Material
Case Carburized Steel
O.D.
12 in
Operating temperature range
-40 to 250 ºF
Operating Temperature Range
-40 to 250 °F
Precision rating
Class 4
Precision Rating
Class 4
R (in)
0.06
r (in)
0.0600
Static load rating
80500 lbf
Static Load Rating
80500 lbf
Style
Cone & Cup
Type
Tapered Roller Bearing
W
0.8750 in
Wi
0.8750 in
Width
0.625 in
Wo
0.6250 in
Y2 (Axial Load Factor)
1.85
Tapered Roller Set - Inch Series and J Series NTN's Tapered Roller Set is engineered for high-performance applications, offering unparalleled precision and reliability in a variety of automotive and industrial settings. This product is meticulously designed to accommodate heavy radial and axial loads, making it ideal for use in applications such as wheel hubs and gearboxes.
Key Features
| High Load Capacity | Designed to support substantial radial and axial loads, enhancing performance in demanding environments. |
|---|---|
| Precision Engineering | Crafted with exacting tolerances to provide optimal fit and performance, minimizing wear and extending service life. |
| Quality Materials | Constructed from high-grade steel, ensuring durability and resistance to fatigue. |
| Enhanced Friction Reduction | NTN's innovative design reduces friction, improving energy efficiency and overall performance. |
Applications
| Automotive Use | Ideal for wheel hub assemblies in passenger vehicles, trucks, and other automotive applications where reliability is critical. |
|---|---|
| Industrial Machinery | Suitable for use in conveyor systems, gearboxes, and other industrial machinery requiring robust bearing solutions. |
| Heavy Equipment | Perfect for construction and agricultural machinery that demands high load-bearing capabilities. |
Benefits
| Improved Performance | The tapered design allows for better load distribution, leading to smoother operation and enhanced performance. |
|---|---|
| Extended Service Life | High-quality materials and precision manufacturing contribute to a longer lifespan, reducing maintenance intervals and costs. |
| Energy Efficiency | The reduction in friction translates to lower energy consumption, making it an environmentally friendly choice for manufacturers. --- Product information compiled with AI assistance for reference purposes. |
How do I choose the right type of bearing for my application?
Start with the load and how it’s applied. You need to know if you’re dealing with radial loads, axial loads, or a mix of both. Then look at speed, operating environment, and space constraints. For example, ball bearings are great for high speed and lighter loads, while roller bearings handle heavier loads but usually at lower speeds. If there’s contamination, moisture, or heat involved, you may need sealed bearings or specific materials. In most cases, the right choice comes down to matching load type, speed, and environment to the bearing design.
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