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NTN HTA032UAT2DB/GNP4L is a duplex angular contact ball bearing for axial loads, designed for main spindle applications. It features a straight bore, open enclosure, and nylon cage. Constructed from high carbon chrome steel, this bearing is suitable for high-precision machine tool spindles.
MODEL HTA032UAT2DB/GNP4L
$3,159.87 Each
Prices are subject to change
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Returnable:No
2a
5.9882 in
2B
2.8346 in
B (in)
1.4173
Ball material
Steel
Ball Material
Steel
Bore type
Round
Bore Type
Round
Cage material
Nylon
Cage Material
Nylon
Cage type
Fiber glass reinforced
Cage Type
Fiber Glass Reinforced
Configuration
Two
Contact angle
30 º
d (in)
6.2992
D (in)
9.4488
d1
7.5039 in
D2
8.5827 in
da min
6.9685 in
Db max
9.0551 in
Dynamic load rating
30000 lbf
Dynamic Load Rating
30000 lbf
Enclosure
Open
I.D.
160 mm
Limiting speed - grease
5000 RPM
Limiting Speed - Grease
5000 RPM
Limiting speed - oil
6300 RPM
Limiting Speed - Oil
6300 RPM
Material
High Carbon Chrome Steel
O.D.
240 mm
Operating temperature range
-40 to 250 ºF
Operating Temperature Range
-40 to 250 °F
Precision
ISO Class 4
Preload
Normal
r (in)
0.0827
r1
0.0433 in
r1as max
0.0394 in
ras max
0.0787 in
Static load rating
87500 lbf
Static Load Rating
87500 lbf
Type
Main Spindle Bearing
Technical Specifications
Type | Main Spindle Bearing |
|---|---|
Bore Type | Round |
Material | High Carbon Chrome Steel |
Cage Type | Fiber Glass Reinforced |
Cage Material | Nylon |
Ball Material | Steel |
Limiting Speed - Oil | 6300 RPM |
Limiting Speed - Grease | 5000 RPM |
Precision | ISO Class 4 |
Configuration | Two |
Preload | Normal |
Static Load Rating | 87500 lbf390000 N390.00 kN |
Dynamic Load Rating | 30000 lbf134000 N134.00 kN |
Enclosure | Open |
Operating Temperature Range | -40 to 250 F-40 to 120 C |
Dimensional Specifications
|
| |
d | 6.2992 in160.000 mm |
|---|---|
D | 9.4488 in240.000 mm |
B | 1.4173 in36.000 mm |
2B | 2.8346 in72.000 mm |
d1 | 7.5039 in190.600 mm |
D2 | 8.5827 in218.000 mm |
r | 0.0827 in2.100 mm |
r1 | 0.0433 in1.100 mm |
Contact Angle | 30 |
2a | 5.9882 in152.100 mm |
da min | 6.9685 in177.000 mm |
Db max | 9.0551 in230.000 mm |
ras max | 0.0787 in2.000 mm |
r1as max | 0.0394 in1.000 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.
