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NTN 7013CDB/GHP4 is a duplex angular contact ball bearing in a back-to-back arrangement with a 65 mm straight bore. This open bearing features a nylon cage and is constructed from high carbon chrome steel. Designed for high-precision applications requiring axial rigidity and moment load capacity, it is suitable for machine tool spindles and precision gearboxes.
MODEL 7013CDB/GHP4
$1,087.10 Each
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2B
1.4173 in
B (in)
0.7087
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
15 º
D (in)
3.9370
d (in)
2.5591
d1
3.0276 in
D1
3.4685 in
d2
2.9252 in
D2
3.6811 in
Da max
3.6614 in
da min
2.8346 in
Db max
3.7598 in
Enclosure
Open
I.D.
65 mm
Material
High carbon chrome steel
O.D.
100 mm
Operating Temperature Range
-40 to 250 °F
Operating temperature range
-40 to 250 ºF
Precision
ISO class 4
Preload
Heavy
r (in)
0.0433
r1
0.0236 in
r1as max
0.0236 in
ras max
0.0394 in
Type
Angular Contact Ball Bearing
Technical Specifications
| Type | Angular Contact Ball Bearing |
|---|---|
| Bore Type | Round |
| Material | High Carbon Chrome Steel |
| Cage Type | Fiber Glass Reinforced |
| Cage Material | Nylon |
| 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 | 2.5591 in65.000 mm |
|---|---|
| D | 3.9370 in100.000 mm |
| B | 0.7087 in18.000 mm |
| 2B | 1.4173 in36.000 mm |
| d1 | 3.0276 in76.900 mm |
| d2 | 2.9252 in74.300 mm |
| D1 | 3.4685 in88.100 mm |
| D2 | 3.6811 in93.500 mm |
| r | 0.0433 in1.100 mm |
| r1 | 0.0236 in0.600 mm |
| Contact Angle | 15 |
| da min | 2.8346 in72.000 mm |
| Da max | 3.6614 in93.000 mm |
| Db max | 3.7598 in95.500 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.
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