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NTN 7314L1A is a 73 series single-row angular contact ball bearing with a 70 mm straight bore. It features an open enclosure and a brass cage, suitable for high-speed and high-precision applications such as machine tool spindles and pumps.
MODEL 7314L1A
$375.83 Each
Prices are subject to change
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Returnable:No
a (Load Center)
1.9488 in
B (in)
1.3780
Ball Material
Steel
Ball material
Steel
Bore Type
Round
Bore type
Round
Cage Material
Brass
Cage material
Brass
Cage Type
Machined
Cage type
Machined
Configuration
One
Contact angle
30 º
D (in)
5.9055
d (in)
2.7559
Double Row Width
2.7559 in
Enclosure
Open
I.D.
70 mm
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
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 | Machined |
Cage Material | Brass |
Ball Material | Steel |
Precision | ISO Class 0 |
Configuration | One |
Enclosure | Open |
Weight | 6.457 lb2.929 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 | 30 |
a (Load Center) | 1.9488 in49.500 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.