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NTN 6028LLU 60 series single-row deep groove ball bearing with a 140 mm straight bore. Features double rubber contact seals (NBR) for effective contaminant exclusion and a stamped steel cage. Suitable for electric motors, pumps, fans, and general rotating machinery.
MODEL 6028LLU
$301.37 Each
Prices are subject to change
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Returnable:No
B (in)
1.2992
Ball Material
Steel
Ball material
Steel
Bore Type
Round
Bore type
Round
Cage Material
Steel
Cage material
Steel
Cage Type
Pressed
Cage type
Pressed
Configuration
One
D (in)
8.2677
d (in)
5.5118
Da max
7.9134 in
da max
6.2205 in
Dynamic Load Rating
27420 lbf
Dynamic load rating
27420 lbf
Enclosure
Double Sealed
Factor
15.9
I.D.
140 mm
Limiting Speed - Grease
1800 RPM
Limiting speed - grease
1800 RPM
Material
High carbon chrome steel
O.D.
210 mm
Operating Temperature Range
-40 to 250 °F
Operating temperature range
-40 to 250 ºF
Precision
ISO class 0
r (in)
0.0787
Radial Internal Clearance
CN
Radial internal clearance
CN
ras max
0.0787 in
Seal Material
Nitrile Rubber
Seal material
Nitrile rubber
Seal Type
Contact
Seal type
Contact
Static Load Rating
24500 lbf
Static load rating
24500 lbf
Type
Deep Groove Ball Bearing
Technical Specifications
Type | Deep Groove Ball Bearing |
|---|---|
Bore Type | Round |
Material | High Carbon Chrome Steel |
Cage Type | Pressed |
Cage Material | Steel |
Ball Material | Steel |
Limiting Speed - Grease | 1800 RPM |
Seal Type | Contact |
Seal Material | Nitrile Rubber |
Precision | ISO Class 0 |
Configuration | One |
Factor | 15.9 |
Radial Internal Clearance | CN |
Static Load Rating | 24500 lbf109000 N109.00 kN |
Dynamic Load Rating | 24700 lbf110000 N110.00 kN |
Enclosure | Double Sealed |
Operating Temperature Range | -40 to 250 F-40 to 120 C |
Dimensional Specifications
| |
d | 5.5118 in140.000 mm |
|---|---|
D | 8.2677 in210.000 mm |
B | 1.2992 in33.000 mm |
r | 0.0787 in2.000 mm |
da max | 6.2205 in158.000 mm |
Da max | 7.9134 in201.000 mm |
ras max | 0.0787 in2.000 mm |
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.
What is the difference between deep groove and angular contact ball bearings?
Deep groove ball bearings are the most common type. They’re designed to handle mainly radial loads, but they can also take some axial load in both directions. They’re simple, versatile, and used in everything from motors to conveyors. Angular contact ball bearings are built for combined loads, especially where there’s significant axial force in one direction. They’re often used in pairs and are common in higher precision or higher load applications like pumps and gearboxes. If your load is mostly radial, go deep groove. If axial load matters more, angular contact is usually the better choice.
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