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The NTN 7201CG1UJ74 is a single-row angular contact ball bearing with a 12 mm straight bore. It features an improved geometry steel cage for high-speed and high-precision applications. This bearing is designed for machine tool spindles, pumps, and other precision rotating equipment.
MODEL 7201CG1UJ74
$207.49 Each
Prices are subject to change
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Returnable:No
a (Load Center)
0.3150 in
B (in)
0.3937
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
One
Contact angle
15 º
D (in)
1.2598
d (in)
0.4724
D1
1.0236 in
d2
0.7205 in
D4
1.0984 in
D5
0.0728 in
Double Row Width
0.7874 in
Dynamic Load Rating
1935 lbf
Dynamic load rating
1935 lbf
E (in)
1.850
Enclosure
Open
I.D.
12 mm
Limiting Speed - Grease
48000 RPM
Limiting speed - grease
48000 RPM
Limiting Speed - Oil
74000 RPM
Limiting speed - oil
74000 RPM
Material
High carbon chrome steel
O.D.
32 mm
Operating Temperature Range
-40 to 250 °F
Operating temperature range
-40 to 250 ºF
Precision
ISO class 4
Preload
Light
Quadruple Row Width
1.5748 in
r2 max
0.0236 in
r3 max
0.0118 in
Static Load Rating
968 lbf
Static load rating
968 lbf
Triple Row Width
1.1811 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 |
Limiting Speed - Oil | 74000 RPM |
Limiting Speed - Grease | 48000 RPM |
Precision | ISO Class 4 |
Configuration | One |
Preload | Light |
Static Load Rating | 968 lbf4300 N4.30 kN |
Dynamic Load Rating | 1935 lbf8600 N8.60 kN |
Enclosure | Open |
Operating Temperature Range | -40 to 250 F-40 to 120 C |
Dimensional Specifications
| |
d | 0.4724 in12.000 mm |
D | 1.2598 in32.000 mm |
B | 0.3937 in10.000 mm |
r2 max | 0.0236 in0.600 mm |
r3 max | 0.0118 in0.300 mm |
Contact Angle | 15 |
a (Load Center) | 0.3150 in8.000 mm |
d2 | 0.7205 in18.300 mm |
D1 | 1.0236 in26.000 mm |
D4 | 1.0984 in27.900 mm |
D5 | 0.0728 in0.8071 mm |
E | 1.850 in20.500 mm |
Double Row Width | 0.7874 in20.000 mm |
Triple Row Width | 1.1811 in30.000 mm |
Quadruple Row Width | 1.5748 in40.000 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.
| Brand | SIEGMA |
| Model | 5IK60RGN-EFT/5GN12.5K |
| Brand | Climax Metal |
| Model | SS-006008-080A6 |
