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NTN 71902HVDUJ94 is a high-precision angular contact ball bearing with a 15 mm straight bore. It features an open design with a phenolic cage and is configured as a universal duplex set for flush ground mounting. Suitable for machine tool spindles and high-speed applications.
MODEL 71902HVDUJ94
$631.75 Each
Prices are subject to change
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2B
0.5512 in
B (in)
0.2756
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)
1.1024
d (in)
0.5906
D1
0.9567 in
d2
0.7362 in
D4
1.0000 in
D5
0.7874 in
E (in)
0.0551
Enclosure
Open
I.D.
15 mm
Material
High carbon chrome steel
O.D.
28 mm
Operating Temperature Range
-40 to 250 °F
Operating temperature range
-40 to 250 ºF
Precision
ISO class 4
Preload
Heavy
r2 max
0.0118 in
r3 max
0.0039 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 | Heavy |
Enclosure | Open |
Operating Temperature Range | -40 to 250 F-40 to 120 C |
Dimensional Specifications
| |
d | 0.5906 in15.000 mm |
|---|---|
D | 1.1024 in28.000 mm |
B | 0.2756 in7.000 mm |
2B | 0.5512 in14.000 mm |
r2 max | 0.0118 in0.300 mm |
r3 max | 0.0039 in0.100 mm |
Contact Angle | 25 |
d2 | 0.7362 in18.700 mm |
D1 | 0.9567 in24.300 mm |
D4 | 1.0000 in25.400 mm |
D5 | 0.7874 in20.000 mm |
E | 0.0551 in1.400 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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