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NTN 7206BG single-row angular contact ball bearing, 30 mm straight bore, open enclosure, steel cage. Constructed from high carbon chrome steel for combined radial and axial loads in machine tool spindles, pumps, and compressors.
MODEL 7206BG
$79.92 Each
Prices are subject to change
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Returnable:No
a (Load Center)
1.0827 in
B (in)
0.6299
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
Contact angle
40 º
D (in)
2.4409
d (in)
1.1811
Da max
2.2244 in
da min
1.3976 in
Db max
2.2638 in
Double Row Width
1.2598 in
Dynamic Load Rating
4600 lbf
Dynamic load rating
4600 lbf
Enclosure
Open
I.D.
30 mm
Limiting Speed - Grease
11000 RPM
Limiting speed - grease
11000 RPM
Limiting Speed - Oil
14000 RPM
Limiting speed - oil
14000 RPM
Material
High carbon chrome steel
O.D.
62 mm
Operating Temperature Range
-40 to 250 °F
Operating temperature range
-40 to 250 ºF
Precision
ISO class 0
Quadruple Row Width
2.5197 in
r (in)
0.0394
r1
0.0236 in
r1as max
0.0236 in
ras max
0.0394 in
Static Load Rating
3050 lbf
Static load rating
3050 lbf
Triple Row Width
1.8898 in
Type
Angular Contact Ball Bearing
Technical Specifications
Type | Angular Contact Ball Bearing |
|---|---|
Bore Type | Round |
Material | High Carbon Chrome Steel |
Cage Type | Pressed |
Cage Material | Steel |
Ball Material | Steel |
Limiting Speed - Oil | 14000 RPM |
Limiting Speed - Grease | 11000 RPM |
Precision | ISO Class 0 |
Configuration | One |
Static Load Rating | 3050 lbf13500 N13.50 kN |
Dynamic Load Rating | 4600 lbf20500 N20.50 kN |
Enclosure | Open |
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 | 0.6299 in16.000 mm |
r | 0.0394 in1.000 mm |
r1 | 0.0236 in0.600 mm |
Contact Angle | 40 |
a (Load Center) | 1.0827 in27.500 mm |
da min | 1.3976 in35.500 mm |
Da max | 2.2244 in56.500 mm |
Db max | 2.2638 in57.500 mm |
ras max | 0.0394 in1.000 mm |
r1as max | 0.0236 in0.600 mm |
Double Row Width | 1.2598 in32.000 mm |
Triple Row Width | 1.8898 in48.000 mm |
Quadruple Row Width | 2.5197 in64.000 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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