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The NTN 6813LLU is a single-row deep groove ball bearing with a 65 mm straight bore. It features double sealed contact rubber seals for contaminant protection. This bearing is suitable for electric motors, pumps, and general rotating machinery.
MODEL 6813LLU
$44.52 Each
Prices are subject to change
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Returnable:No
B (in)
0.3937
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)
3.3465
d (in)
2.5591
Da max
3.1890 in
da max
2.7559 in
Dynamic Load Rating
2870 lbf
Dynamic load rating
2870 lbf
Enclosure
Double Sealed
Factor
16.2
I.D.
65 mm
Limiting Speed - Grease
4100 RPM
Limiting speed - grease
4100 RPM
Material
High carbon chrome steel
O.D.
85 mm
Operating Temperature Range
-40 to 250 °F
Operating temperature range
-40 to 250 ºF
Precision
ISO class 0
r (in)
0.0236
r1
0.0197 in
Radial Internal Clearance
CN
Radial internal clearance
CN
ras max
0.0236 in
Seal Material
Nitrile Rubber
Seal material
Nitrile rubber
Seal Type
Contact
Seal type
Contact
Static Load Rating
2470 lbf
Static load rating
2470 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 | 4100 RPM |
| Seal Type | Contact |
| Seal Material | Nitrile Rubber |
| Precision | ISO Class 0 |
| Configuration | One |
| Factor | 16.2 |
| Radial Internal Clearance | CN |
| Static Load Rating | 2470 lbf11000 N11.00 kN |
| Dynamic Load Rating | 2610 lbf11600 N11.60 kN |
| Enclosure | Double Sealed |
| Operating Temperature Range | -40 to 250 F-40 to 120 C |
Dimensional Specifications
| |
| d | 2.5591 in65.000 mm |
|---|---|
| D | 3.3465 in85.000 mm |
| B | 0.3937 in10.000 mm |
| r | 0.0236 in0.600 mm |
| r1 | 0.0197 in0.500 mm |
| da max | 2.7559 in70.000 mm |
| Da max | 3.1890 in81.000 mm |
| ras max | 0.0236 in0.600 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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