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NTN 7314BG 73 series single-row angular contact ball bearing with a 70 mm straight bore. Open enclosure with steel cage, constructed from high carbon chrome steel. Designed for combined radial and axial loads in machine tool spindles, pumps, and compressors.
MODEL 7314BG
$327.30 Each
Prices are subject to change
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Returnable:No
a (Load Center)
2.5000 in
B (in)
1.3780
Ball Material
Steel
Ball material
Steel
Bore Type
Round
Bore type
Round
Cage Material
Steel
Cage material
Steel
Cage Type
Pressed
Cage type
Pressed
Configuration
One
Contact angle
40 º
D (in)
5.9055
d (in)
2.7559
Da max
5.4331 in
da min
3.2283 in
Db max
5.6299 in
db min
3.0315 in
Double Row Width
2.7559 in
Dynamic Load Rating
25600 lbf
Dynamic load rating
25600 lbf
Enclosure
Open
I.D.
70 mm
Limiting Speed - Grease
4400 RPM
Limiting speed - grease
4400 RPM
Limiting Speed - Oil
5800 RPM
Limiting speed - oil
5800 RPM
Material
High carbon chrome steel
O.D.
150 mm
Operating Temperature Range
-40 to 250 °F
Operating temperature range
-40 to 250 ºF
Precision
ISO class 0
Quadruple Row Width
5.5118 in
r (in)
0.0827
r1
0.0433 in
r1as max
0.0394 in
ras max
0.0787 in
Static Load Rating
19300 lbf
Static load rating
19300 lbf
Triple Row Width
4.1339 in
Type
Angular Contact Ball Bearing
Technical Specifications
Type | Angular Contact Ball Bearing |
Bore Type | Round |
Material | High Carbon Chrome Steel |
Cage Type | Pressed |
Cage Material | Steel |
Ball Material | Steel |
Limiting Speed - Oil | 5800 RPM |
Limiting Speed - Grease | 4400 RPM |
Precision | ISO Class 0 |
Configuration | One |
Static Load Rating | 19300 lbf86000 N86.00 kN |
Dynamic Load Rating | 25600 lbf114000 N114.00 kN |
Enclosure | Open |
Weight | 5.644 lb2.560 kg |
Operating Temperature Range | -40 to 250 F-40 to 120 C |
Dimensional Specifications
| |
d | 2.7559 in70.000 mm |
D | 5.9055 in150.000 mm |
B | 1.3780 in35.000 mm |
r | 0.0827 in2.100 mm |
r1 | 0.0433 in1.100 mm |
Contact Angle | 40 |
a (Load Center) | 2.5000 in63.500 mm |
da min | 3.2283 in82.000 mm |
db min | 3.0315 in77.000 mm |
Da max | 5.4331 in138.000 mm |
Db max | 5.6299 in143.000 mm |
ras max | 0.0787 in2.000 mm |
r1as max | 0.0394 in1.000 mm |
Double Row Width | 2.7559 in70.000 mm |
Triple Row Width | 4.1339 in105.000 mm |
Quadruple Row Width | 5.5118 in140.000 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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