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The NTN 6909LLU is a 6900 series single-row deep groove ball bearing with a 45 mm straight bore. It features double contact rubber seals (LLU) for effective contaminant exclusion. This bearing is suitable for electric motors, pumps, and general rotating machinery.
MODEL 6909LLU
$25.96 Each
Prices are subject to change
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Returnable:No
B (in)
0.4724
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)
2.6772
d (in)
1.7717
Da max
2.5197 in
da max
2.0079 in
Dynamic Load Rating
3250 lbf
Dynamic load rating
3250 lbf
Enclosure
Double Sealed
Factor
16.1
I.D.
45 mm
Limiting Speed - Grease
5600 RPM
Limiting speed - grease
5600 RPM
Material
High carbon chrome steel
O.D.
68 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
2340 lbf
Static load rating
2340 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 | 5600 RPM |
Seal Type | Contact |
Seal Material | Nitrile Rubber |
Precision | ISO Class 0 |
Configuration | One |
Factor | 16.1 |
Radial Internal Clearance | CN |
Static Load Rating | 2340 lbf10400 N10.40 kN |
Dynamic Load Rating | 2950 lbf13100 N13.10 kN |
Enclosure | Double Sealed |
Weight | 0.295 lb0.134 kg |
Operating Temperature Range | -40 to 250 F-40 to 120 C |
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.
#326409
Brand
SKF Bearing
Model
61909-2RS1
#5034657
Brand
NSK Bearings
Model
6909DDU
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