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NTN 7024CT1GD2/GNP4 is a super precision duplex angular contact ball bearing with a 120 mm straight bore. It features an open design with a phenolic cage and is constructed from high carbon chrome steel. This bearing is universal flush ground for matched pair mounting in high-speed machine tool spindles and precision applications.
MODEL 7024CT1GD2/GNP4
$3,870.18 Each
Prices are subject to change
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2B
2.2047 in
B (in)
1.1024
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)
7.0866
d (in)
4.7244
D1
6.2953 in
d1
5.5197 in
d2
5.3307 in
D2
6.6693 in
Da max
6.6929 in
da min
5.1181 in
Db max
6.8701 in
Dynamic Load Rating
38000 lbf
Dynamic load rating
38000 lbf
Enclosure
Open
I.D.
120 mm
Limiting Speed - Grease
4200 RPM
Limiting speed - grease
4200 RPM
Limiting Speed - Oil
5600 RPM
Limiting speed - oil
5600 RPM
Material
High carbon chrome steel
O.D.
180 mm
Operating Temperature Range
-40 to 250 °F
Operating temperature range
-40 to 250 ºF
Precision
ISO class 4
Preload
Normal
r (in)
0.0787
r1
0.0394 in
r1as max
0.0394 in
ras max
0.0787 in
Static Load Rating
48500 lbf
Static load rating
48500 lbf
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 |
Limiting Speed - Oil | 5600 RPM |
Limiting Speed - Grease | 4200 RPM |
Precision | ISO Class 4 |
Configuration | Two |
Preload | Normal |
Static Load Rating | 48500 lbf216000 N216.00 kN |
Dynamic Load Rating | 38000 lbf168000 N168.00 kN |
Enclosure | Open |
Weight | 9.098 lb4.127 kg |
Operating Temperature Range | -40 to 250 F-40 to 120 C |
Dimensional Specifications
| |
d | 4.7244 in120.000 mm |
D | 7.0866 in180.000 mm |
B | 1.1024 in28.000 mm |
2B | 2.2047 in56.000 mm |
d1 | 5.5197 in140.200 mm |
d2 | 5.3307 in135.400 mm |
D1 | 6.2953 in159.900 mm |
D2 | 6.6693 in169.400 mm |
r | 0.0787 in2.000 mm |
r1 | 0.0394 in1.000 mm |
Contact Angle | 15 |
da min | 5.1181 in130.000 mm |
Da max | 6.6929 in170.000 mm |
Db max | 6.8701 in174.500 mm |
ras max | 0.0787 in2.000 mm |
r1as max | 0.0394 in1.000 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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