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NTN BNT002/GNP2 is a single-row angular contact ball bearing with a 15 mm straight bore. Designed for precision applications such as machine tool spindles, motors, and lathes, it features a P2 precision class for high-speed and high-accuracy operation. The open design allows for custom lubrication.
MODEL BNT002/GNP2
$666.59 Each
Prices are subject to change
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Returnable:No
a (in)
0.2953
B (in)
0.3543
Ball Material
Steel
Ball material
Steel
Bore Type
Round
Bore type
Round
Cage Material
Phenolic Resin
Cage material
Phenolic resin
Cage Type
Machined
Cage type
Machined
Configuration
One
Contact angle
15 º
D (in)
1.2598
d (in)
0.5906
D1
1.0433 in
d1
0.8031 in
d2
0.7283 in
Da max
1.1614 in
da min
0.6890 in
db min
0.6378 in
Double Row Width
0.7087 in
Dynamic Load Rating
1070 lbf
Dynamic load rating
1070 lbf
Enclosure
Open
Factor
9.2
I.D.
15 mm
Limiting Speed - Grease
46000 RPM
Limiting speed - grease
46000 RPM
Limiting Speed - Oil
91500 RPM
Limiting speed - oil
91500 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 2
Preload
Normal
Quadruple Row Width
1.4173 in
r (in)
0.0118
r1
0.0059 in
r1as max
0.0059 in
ras max
0.0118 in
Static Load Rating
500 lbf
Static load rating
500 lbf
Triple Row Width
1.0630 in
Type
Main Spindle Bearing
Technical Specifications
Type | Main Spindle Bearing |
Bore Type | Round |
Material | High Carbon Chrome Steel |
Cage Type | Machined |
Cage Material | Phenolic Resin |
Ball Material | Steel |
Limiting Speed - Oil | 91500 RPM |
Limiting Speed - Grease | 46000 RPM |
Precision | ISO Class 2 |
Configuration | One |
Preload | Normal |
Factor | 9.2 |
Static Load Rating | 500 lbf2220 N2.22 kN |
Dynamic Load Rating | 1070 lbf4750 N4.75 kN |
Enclosure | Open |
Weight | 0.066 lb0.030 kg |
Operating Temperature Range | -40 to 250 F-40 to 120 C |
Dimensional Specifications
| |
d | 0.5906 in15.000 mm |
D | 1.2598 in32.000 mm |
B | 0.3543 in9.000 mm |
d1 | 0.8031 in20.400 mm |
d2 | 0.7283 in18.500 mm |
D1 | 1.0433 in26.500 mm |
r | 0.0118 in0.300 mm |
r1 | 0.0059 in0.150 mm |
Contact Angle | 15 |
a | 0.2953 in7.500 mm |
da min | 0.6890 in17.500 mm |
db min | 0.6378 in16.200 mm |
Da max | 1.1614 in29.500 mm |
ras max | 0.0118 in0.300 mm |
r1as max | 0.0059 in0.150 mm |
Double Row Width | 0.7087 in18.000 mm |
Triple Row Width | 1.0630 in27.000 mm |
Quadruple Row Width | 1.4173 in36.000 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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