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NTN BNT006DTP2 is a double angular contact ball bearing in a tandem arrangement with a 30 mm straight bore. Designed for high-precision applications such as machine tool spindles and lathes, this bearing features P2 precision class and an open configuration. It accommodates axial loads in one direction and provides high rigidity.
MODEL BNT006DTP2
$671.97 Each
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2B
1.0236 in
B (in)
0.5118
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
Two
Contact angle
15 º
d (in)
1.1811
D (in)
2.1654
D1
1.8819 in
d1
1.5118 in
d2
1.3976 in
Da max
1.9488 in
da min
1.3976 in
db min
1.3583 in
Dynamic Load Rating
4250 lbf
Dynamic load rating
4250 lbf
Enclosure
Open
Factor
0.0
I.D.
30 mm
Limiting Speed - Grease
18000 RPM
Limiting speed - grease
18000 RPM
Limiting Speed - Oil
23000 RPM
Limiting speed - oil
23000 RPM
Material
High carbon chrome steel
O.D.
55 mm
Operating Temperature Range
-40 to 250 °F
Operating temperature range
-40 to 250 ºF
Precision
ISO class 2
r (in)
0.0394
r1
0.0236 in
r1as max
0.0236 in
ras max
0.0394 in
Seal material
None
Seal type
None
Static Load Rating
3050 lbf
Static load rating
3050 lbf
Type
Main Spindle Bearing
Width
26 mm
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 | 23000 RPM |
Limiting Speed - Grease | 18000 RPM |
Seal Type | None |
Seal Material | None |
Precision | ISO Class 2 |
Configuration | Two |
Factor | 0.0 |
Static Load Rating | 3050 lbf13500 N13.50 kN |
Dynamic Load Rating | 4250 lbf18800 N18.80 kN |
Enclosure | Open |
Weight | 0.489 lb0.222 kg |
Operating Temperature Range | -40 to 250 F-40 to 120 C |
Dimensional Specifications
| |
d | 1.1811 in30.000 mm |
D | 2.1654 in55.000 mm |
B | 0.5118 in13.000 mm |
2B | 1.0236 in26.000 mm |
d1 | 1.5118 in38.400 mm |
d2 | 1.3976 in35.500 mm |
D1 | 1.8819 in47.800 mm |
r | 0.0394 in1.000 mm |
r1 | 0.0236 in0.600 mm |
Contact Angle | 15 |
da min | 1.3976 in35.500 mm |
db min | 1.3583 in34.500 mm |
Da max | 1.9488 in49.500 mm |
ras max | 0.0394 in1.000 mm |
r1as max | 0.0236 in0.600 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 | NTN Bearing |
| Model | UCP307-107D1 |
