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NTN 320/32X is a single row metric tapered roller bearing with a 32 mm straight bore. This bearing accommodates combined radial and axial loads and is suitable for gearboxes, wheel hubs, and industrial transmissions.
MODEL 320/32X
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$42.76 Each
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Brand Minimum Order Quantity: 2
Typically Ships in: 1 day
Returnable:No
a (Effective Load Center)
-0.0984 in
B (in)
0.6693
Bore Type
Round
Bore type
Round
C (in)
0.5118
Configuration
One
d (in)
1.2598
D (in)
2.2835
Da
2.07 in
da
1.48 in
Da min
1.97 in
db
1.50 in
Db
2.17 in
Dynamic Load Rating
8300 lbf
Dynamic load rating
8300 lbf
e (Axial Load Factor)
0.45
Enclosure
Open
I.D.
1.2598 in
Limiting Speed - Grease
6600 RPM
Limiting speed - grease
6600 RPM
Limiting Speed - Oil
8700 RPM
Limiting speed - oil
8700 RPM
Lubrication
w/o Oil Hole
Material
Case carburized steel
O.D.
2.2835 in
Operating Temperature Range
-40 to 250 °F
Operating temperature range
-40 to 250 ºF
Precision Rating
Class 4
Precision rating
Class 4
R (in)
0.04
r (in)
0.0400
Static Load Rating
10500 lbf
Static load rating
10500 lbf
Style
Cone & cup
T (in)
0.6693
Type
Tapered Roller Bearing
Y0 (Axial Load Factor)
0.73
Y2 (Axial Load Factor)
1.32
Technical Specifications
Type | Tapered Roller Bearing |
Bore Type | Round |
Material | Case Carburized Steel |
Limiting Speed - Oil | 8700 RPM |
Limiting Speed - Grease | 6600 RPM |
Style | Cone & Cup |
Precision Rating | Class 4 |
Configuration | One |
Lubrication | w/o Oil Hole |
e (Axial Load Factor) | 0.45 |
Y2 (Axial Load Factor) | 1.32 |
Y0 (Axial Load Factor) | 0.73 |
Static Load Rating | 10500 lbf46500 N46.50 kN |
Dynamic Load Rating | 8300 lbf37000 N37.00 kN |
Enclosure | Open |
Weight | 0.399 lb0.181 kg |
Operating Temperature Range | -40 to 250 F-40 to 120 C |
Dimensional Specifications
| |
d | 1.2598 in32.000 mm |
D | 2.2835 in58.000 mm |
C | 0.5118 in13.000 mm |
B | 0.6693 in17.000 mm |
a (Effective Load Center) | -0.0984 in-2.500 mm |
T | 0.6693 in17.000 mm |
r | 0.0400 in1.000 mm |
R | 0.04 in1.0 mm |
da | 1.48 in37.5 mm |
db | 1.50 in38.0 mm |
Da | 2.07 in52.5 mm |
Da min | 1.97 in50.0 mm |
Db | 2.17 in55.0 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.
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