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NTN 7215BAT1BG/GNP5 is a single-row angular contact ball bearing with a 75 mm straight bore. Open design with a phenolic cage and P5 precision class. Constructed from high carbon chrome steel for high-speed and high-accuracy applications such as machine tool spindles and precision gearboxes.
MODEL 7215BAT1BG/GNP5
$433.71 Each
Prices are subject to change
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Returnable:No
B (in)
0.9843
Ball Material
Steel
Ball material
Steel
Bore Type
Round
Bore type
Round
Cage Material
Phenolic
Cage material
Phenolic
Cage Type
Machined
Cage type
Machined
Configuration
One
Contact angle
40 º
D (in)
5.1181
d (in)
2.9528
Double Row Width
1.9685 in
Enclosure
Open
I.D.
75 mm
Material
High carbon chrome steel
O.D.
130 mm
Operating Temperature Range
-40 to 250 °F
Operating temperature range
-40 to 250 ºF
Precision
ISO Class 5
Preload
Normal
Quadruple Row Width
3.9370 in
Triple Row Width
2.9528 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 | Phenolic |
Ball Material | Steel |
Precision | ISO Class 5 |
Configuration | One |
Preload | Normal |
Enclosure | Open |
Operating Temperature Range | -40 to 250 F-40 to 120 C |
Dimensional Specifications
| |
d | 2.9528 in75.000 mm |
D | 5.1181 in130.000 mm |
B | 0.9843 in25.000 mm |
Contact Angle | 40 |
Double Row Width | 1.9685 in50.000 mm |
Triple Row Width | 2.9528 in75.000 mm |
Quadruple Row Width | 3.9370 in100.000 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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