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NTN 7214B single-row angular contact ball bearing with 70 mm straight bore and 40° contact angle. Open design for combined radial and axial loads. Suitable for machine tool spindles, pumps, and compressors.
MODEL 7214B
$279.46 Each
Prices are subject to change
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Returnable:No
a (Load Center)
2.0866 in
B (in)
0.9449
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)
4.9213
d (in)
2.7559
Da max
4.5866 in
da min
3.0906 in
Db max
4.7047 in
db min
2.9724 in
Double Row Width
1.8898 in
Dynamic Load Rating
15500 lbf
Dynamic load rating
15500 lbf
Enclosure
Open
I.D.
70 mm
Limiting Speed - Grease
4900 RPM
Limiting speed - grease
4900 RPM
Limiting Speed - Oil
6500 RPM
Limiting speed - oil
6500 RPM
Material
High carbon chrome steel
O.D.
125 mm
Operating Temperature Range
-40 to 250 °F
Operating temperature range
-40 to 250 ºF
Precision
ISO class 0
Quadruple Row Width
3.7795 in
r (in)
0.0591
r1
0.0394 in
r1as max
0.0394 in
ras max
0.0591 in
Static Load Rating
13000 lbf
Static load rating
13000 lbf
Triple Row Width
2.8346 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 | 6500 RPM |
Limiting Speed - Grease | 4900 RPM |
Precision | ISO Class 0 |
Configuration | One |
Static Load Rating | 13000 lbf58000 N58.00 kN |
Dynamic Load Rating | 15500 lbf69000 N69.00 kN |
Enclosure | Open |
Weight | 2.447 lb1.110 kg |
Operating Temperature Range | -40 to 250 F-40 to 120 C |
Dimensional Specifications
| |
d | 2.7559 in70.000 mm |
D | 4.9213 in125.000 mm |
B | 0.9449 in24.000 mm |
r | 0.0591 in1.500 mm |
r1 | 0.0394 in1.000 mm |
Contact Angle | 40 |
a (Load Center) | 2.0866 in53.000 mm |
da min | 3.0906 in78.500 mm |
db min | 2.9724 in75.500 mm |
Da max | 4.5866 in116.500 mm |
Db max | 4.7047 in119.500 mm |
ras max | 0.0591 in1.500 mm |
r1as max | 0.0394 in1.000 mm |
Double Row Width | 1.8898 in48.000 mm |
Triple Row Width | 2.8346 in72.000 mm |
Quadruple Row Width | 3.7795 in96.000 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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