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NTN 3206B double-row angular contact ball bearing with 30 mm straight bore and open design. Accommodates combined radial and axial loads in both directions, providing high stiffness in a compact envelope. Suitable for pumps, electric motors, and gearboxes where bidirectional thrust capacity is required.
MODEL 3206B
$107.82 Each
Prices are subject to change
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Returnable:No
a (in)
1.5984
B (in)
0.9370
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
Two
Contact angle
32 º
D (in)
2.4409
d (in)
1.1811
Dynamic Load Rating
6050 lbf
Dynamic load rating
6050 lbf
Enclosure
Open
I.D.
30 mm
Limiting Speed - Grease
7200 RPM
Limiting speed - grease
7200 RPM
Limiting Speed - Oil
9600 RPM
Limiting speed - oil
9600 RPM
Material
High carbon chrome steel
O.D.
62 mm
Operating Temperature Range
-40 to 250 °F
Operating temperature range
-40 to 250 ºF
Outside Ring Type
Straight
Precision
Class 0
r (in)
0.0394
Radial Internal Clearance
CN
Radial internal clearance
CN
Static Load Rating
6050 lbf
Static load rating
6050 lbf
Type
Angular Contact Ball Bearing
Width
23.8 mm
Technical Specifications
Type | Angular Contact Ball Bearing |
|---|---|
Bore Type | Round |
Outside Ring Type | Straight |
Material | High Carbon Chrome Steel |
Cage Type | Pressed |
Cage Material | Steel |
Ball Material | Steel |
Limiting Speed - Oil | 9600 RPM |
Limiting Speed - Grease | 7200 RPM |
Precision | Class 0 |
Configuration | Two |
Radial Internal Clearance | CN |
Static Load Rating | 6050 lbf27000 N27.00 kN |
Dynamic Load Rating | 6050 lbf27000 N27.00 kN |
Enclosure | Open |
| 0.683 lb0.310 kg | |
Operating Temperature Range | -40 to 250 F-40 to 120 C |
Dimensional Specifications
| |
d | 1.1811 in30.000 mm |
|---|---|
D | 2.4409 in62.000 mm |
B | 0.9370 in23.800 mm |
r | 0.0394 in1.000 mm |
Contact Angle | 32 |
a | 1.5984 in40.600 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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