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NTN 5209EEG15 is a 5xxx series double-row angular contact ball bearing with a 45 mm straight bore. It features double contact rubber seals for contamination protection. Designed for applications requiring combined radial and axial loads in a compact assembly.
MODEL 5209EEG15
$128.88 Each
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Returnable:No
a (in)
1.7008
B (in)
1.1890
Ball Material
Steel
Ball material
Steel
Bore Type
Round
Bore type
Round
Cage Material
Nylon
Cage material
Nylon
Cage Type
Fiber Glass Reinforced
Cage type
Fiber glass reinforced
Configuration
Two
Contact angle
25 º
D (in)
3.3465
d (in)
1.7717
Da max
3.0906 in
da min
2.0276 in
Dynamic Load Rating
10274 lbf
Dynamic load rating
10274 lbf
Enclosure
Double Sealed
I.D.
45 mm
Limiting Speed - Grease
5000 RPM
Limiting speed - grease
5000 RPM
Material
High carbon chrome steel
O.D.
85 mm
Operating Temperature Range
-40 to 250 °F
Operating temperature range
-40 to 250 ºF
Outside Ring Type
Straight
Precision
ISO class 0
r (in)
0.0433
Radial Internal Clearance
CN
Radial internal clearance
CN
ras max
0.0394 in
Seal Material
Nitrile Rubber
Seal material
Nitrile rubber
Seal Type
Contact
Seal type
Contact
Static Load Rating
8363 lbf
Static load rating
8363 lbf
Type
Angular Contact Ball Bearing
Width
30.2 mm
Specifications
| Bearing Data Sheet | ||
|---|---|---|
| Double Row Angular Ball Bearings | ||
| NTN Part Number | 5209 | |
| Dimensions | Features/Options | ||||
|---|---|---|---|---|---|
| Dimension | Imperial | Metric | Option | Code | Description |
| Bore d O.D.D. Width B or W rs min r1s min Load center a da min da max db min Da max Db max ras max r1as max | 1.7717 (in) 3.3465 (in) 1.1890 (in) 0.0433 (in) 1.9882 (in) 2.0472 (in) 3.0709 (in) 0.0394 (in) | 45.000 (mm) 85.000 (mm) 30.200 (mm) 1.100 (mm) 50.500 (mm) 52.000 (mm) 78.000 (mm) 1.000 (mm) | Series Contact Angle Cage | 52 | 52 Angular Contact Series Double Row Contact Angle 30 Standard cage |
| Basic Load Ratings | Limiting Speeds | ||||
|---|---|---|---|---|---|
| Static Dynamic | 8, 300 (LBF) 10, 800 (LBF) | 37, 000 (N) 48, 000 (N) | Oil Seals Grease | 5, 900.00 (RPM) N/A 4, 400.00 (RPM) | |
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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