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NTN 7204CGD2/GLP4 is a duplex angular contact ball bearing with a 20 mm straight bore. This universal flush ground pair is designed for high-precision applications requiring matched preload and rigidity. Features P4 precision class and is suitable for machine tool spindles and high-speed spindles.
MODEL 7204CGD2/GLP4
$482.88 Each
Prices are subject to change
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Returnable:No
2B
1.1024 in
B (in)
0.5512
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
15 º
D (in)
1.8504
d (in)
0.7874
d1
1.1575 in
D1
1.5512 in
D2
1.6850 in
Da max
1.6339 in
da min
1.0039 in
Db max
1.6732 in
Dynamic Load Rating
5350 lbf
Dynamic load rating
5350 lbf
Enclosure
Open
I.D.
20 mm
Limiting Speed - Grease
20000 RPM
Limiting speed - grease
20000 RPM
Limiting Speed - Oil
27000 RPM
Limiting speed - oil
27000 RPM
Material
High carbon chrome steel
O.D.
47 mm
Operating Temperature Range
-40 to 250 °F
Operating temperature range
-40 to 250 ºF
Precision
ISO class 4
Preload
Light
r (in)
0.0394
r1
0.0118 in
r1as max
0.0236 in
ras max
0.0394 in
Static Load Rating
3650 lbf
Static load rating
3650 lbf
Type
Angular Contact Ball Bearing
Technical Specifications
Type | Angular Contact Ball Bearing |
Bore Type | Round |
Material | High Carbon Chrome Steel |
Cage Type | Fiber Glass Reinforced |
Cage Material | Nylon |
Ball Material | Steel |
Limiting Speed - Oil | 27000 RPM |
Limiting Speed - Grease | 20000 RPM |
Precision | ISO Class 4 |
Configuration | Two |
Preload | Light |
Static Load Rating | 3650 lbf16300 N16.30 kN |
Dynamic Load Rating | 5350 lbf23700 N23.70 kN |
Enclosure | Open |
Weight | 0.437 lb0.198 kg |
Operating Temperature Range | -40 to 250 F-40 to 120 C |
Dimensional Specifications
| |
d | 0.7874 in20.000 mm |
D | 1.8504 in47.000 mm |
B | 0.5512 in14.000 mm |
2B | 1.1024 in28.000 mm |
d1 | 1.1575 in29.400 mm |
D1 | 1.5512 in39.400 mm |
D2 | 1.6850 in42.800 mm |
r | 0.0394 in1.000 mm |
r1 | 0.0118 in0.300 mm |
Contact Angle | 15 |
da min | 1.0039 in25.500 mm |
Da max | 1.6339 in41.500 mm |
Db max | 1.6732 in42.500 mm |
ras max | 0.0394 in1.000 mm |
r1as max | 0.0236 in0.600 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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