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NTN 7205CG1DUJ74 is a 72 series single-row angular contact ball bearing with a 25 mm straight bore. Open design with a phenolic cage and universal flush ground faces for duplex mounting. Constructed from high carbon chrome steel for precision applications.
MODEL 7205CG1DUJ74
$519.34 Each
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2B
1.1811 in
B (in)
0.5906
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
Two
Contact angle
15 º
D (in)
2.0472
d (in)
0.9843
D1
1.7520 in
d2
1.3386 in
D4
1.8465 in
D5
1.4488 in
E (in)
0.1102
Enclosure
Open
I.D.
25 mm
Material
High carbon chrome steel
O.D.
52 mm
Operating Temperature Range
-40 to 250 °F
Operating temperature range
-40 to 250 ºF
Precision
ISO class 4
Preload
Light
r2 max
0.0394 in
r3 max
0.0118 in
Type
Angular Contact Ball Bearing
Technical Specifications
| Type | Angular Contact Ball Bearing |
|---|---|
| Bore Type | Round |
| Material | High Carbon Chrome Steel |
| Cage Type | Stratified |
| Cage Material | Phenolic |
| Ball Material | Steel |
| Precision | ISO Class 4 |
| Configuration | Two |
| Preload | Light |
| Enclosure | Open |
| Operating Temperature Range | -40 to 250 F-40 to 120 C |
Dimensional Specifications
| |
| d | 0.9843 in25.000 mm |
|---|---|
| D | 2.0472 in52.000 mm |
| B | 0.5906 in15.000 mm |
| 2B | 1.1811 in30.000 mm |
| r2 max | 0.0394 in1.000 mm |
| r3 max | 0.0118 in0.300 mm |
| Contact Angle | 15 |
| d2 | 1.3386 in34.000 mm |
| D1 | 1.7520 in44.500 mm |
| D4 | 1.8465 in46.900 mm |
| D5 | 1.4488 in36.800 mm |
| E | 0.1102 in2.800 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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