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The NTN 7003HVUJ74 is a 70 series single-row angular contact ball bearing with a 17 mm straight bore. It features a high-precision design with a stamped steel cage, suitable for machine tool spindles and high-speed applications requiring axial and radial load capacity.
MODEL 7003HVUJ74
$238.39 Each
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Returnable:No
a (Load Center)
0.4331 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
25 º
D (in)
1.3780
d (in)
0.6693
D1
1.1575 in
d2
0.8937 in
D4
1.2087 in
D5
0.0689 in
Double Row Width
0.7874 in
Dynamic Load Rating
1575 lbf
Dynamic load rating
1575 lbf
E (in)
1.750
Enclosure
Open
I.D.
17 mm
Limiting Speed - Grease
37000 RPM
Limiting speed - grease
37000 RPM
Limiting Speed - Oil
56000 RPM
Limiting speed - oil
56000 RPM
Material
High carbon chrome steel
O.D.
35 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
0.0118 in
r3 max
0.0059 in
Static Load Rating
956 lbf
Static load rating
956 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 | 56000 RPM |
Limiting Speed - Grease | 37000 RPM |
Precision | ISO Class 4 |
Configuration | One |
Preload | Light |
Static Load Rating | 956 lbf4250 N4.25 kN |
Dynamic Load Rating | 1575 lbf7000 N7.00 kN |
Enclosure | Open |
Operating Temperature Range | -40 to 250 F-40 to 120 C |
Dimensional Specifications
| |
d | 0.6693 in17.000 mm |
D | 1.3780 in35.000 mm |
B | 0.3937 in10.000 mm |
r2 max | 0.0118 in0.300 mm |
r3 max | 0.0059 in0.150 mm |
Contact Angle | 25 |
a (Load Center) | 0.4331 in11.000 mm |
d2 | 0.8937 in22.700 mm |
D1 | 1.1575 in29.400 mm |
D4 | 1.2087 in30.700 mm |
D5 | 0.0689 in0.9606 mm |
E | 1.750 in24.400 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.
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