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The NTN 7206CG1Q16J74 is a single-row angular contact ball bearing with a 30 mm straight bore. It features an open enclosure and a phenolic cage for high-speed precision applications. This bearing is constructed from high carbon chrome steel and is suitable for machine tool spindles and other high-accuracy rotating assemblies.
MODEL 7206CG1Q16J74
$865.46 Each
Prices are subject to change
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Returnable:No
B (in)
0.6299
Ball Material
Steel
Ball material
Steel
Bore Type
Round
Bore type
Round
Cage Material
Phenolic
Cage material
Phenolic
Cage Type
Stratified
Cage type
Stratified
Configuration
Three
Contact angle
15 º
D (in)
2.4409
d (in)
1.1811
d2
1.5906 in
D4
2.1811 in
D5
1.7126 in
E (in)
0.1240
Enclosure
Open
I.D.
30 mm
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 4
Preload
Light
r2
0.0394 in
r3
0.0118 in
Total width
1.8898 in
Type
Angular Contact Ball Bearing
Technical Specifications
Type | Angular Contact Ball Bearing |
|---|---|
Material | High Carbon Chrome Steel |
Bore Type | Round |
Preload | Light |
Enclosure | Open |
Precision | ISO Class 4 |
Configuration | Three |
Cage Material | Phenolic |
Cage Type | Stratified |
Ball Material | Steel |
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 |
Total Width | 1.8898 in48.000 mm |
r2 | 0.0394 in1.000 mm |
r3 | 0.0118 in0.300 mm |
d2 | 1.5906 in40.400 mm |
D4 | 2.1811 in55.400 mm |
D5 | 1.7126 in43.500 mm |
E | 0.1240 in3.150 mm |
Contact Angle | 15 |
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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