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NTN 7014HVDUJ74 is a 70 mm bore duplex angular contact ball bearing with universal flush ground configuration for back-to-back, face-to-face, or tandem mounting. Features a phenolic cage and open enclosure. Constructed from high carbon chrome steel for precision machine tool spindles and high-speed applications.
MODEL 7014HVDUJ74
$1,279.62 Each
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2B
1.5748 in
B (in)
0.7874
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
25 º
D (in)
4.3307
d (in)
2.7559
D1
3.8780 in
d2
3.2087 in
D4
4.0551 in
D5
3.3780 in
E (in)
0.0984
Enclosure
Open
I.D.
70 mm
Material
High carbon chrome steel
O.D.
110 mm
Operating Temperature Range
-40 to 250 °F
Operating temperature range
-40 to 250 ºF
Precision
ISO class 4
Preload
Light
r2 max
0.0433 in
r3 max
0.0236 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 | 2.7559 in70.000 mm |
D | 4.3307 in110.000 mm |
B | 0.7874 in20.000 mm |
2B | 1.5748 in40.000 mm |
r2 max | 0.0433 in1.100 mm |
r3 max | 0.0236 in0.600 mm |
Contact Angle | 25 |
d2 | 3.2087 in81.500 mm |
D1 | 3.8780 in98.500 mm |
D4 | 4.0551 in103.000 mm |
D5 | 3.3780 in85.800 mm |
E | 0.0984 in2.500 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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