We never sell your data to third parties
Image for Illustration purposes only. Actual product may vary
NTN 7319BDB is a 73 series single-row angular contact ball bearing with a 95 mm straight bore. This duplex bearing is arranged back-to-back for increased rigidity and moment load capacity. Suitable for machine tool spindles, pumps, and compressors.
MODEL 7319BDB
$1,631.05 Each
Prices are subject to change
FREE SHIPPING ON ORDERS OVER $100
Select Quantity
Typically Ships in: 1 day
Returnable: See conditions
2B
3.5434 in
B (in)
1.7717
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
Two
Contact angle
40 º
D (in)
7.8740
d (in)
3.7402
Da max
7.3228 in
da min
4.2913 in
Db max
7.5984 in
db min
4.0157 in
Dynamic load rating
61148 lbf
Dynamic Load Rating
61148 lbf
Enclosure
Open
I.D.
95 mm
Limiting speed - grease
2600 RPM
Limiting Speed - Grease
2600 RPM
Limiting speed - oil
3400 RPM
Limiting Speed - Oil
3400 RPM
Material
High Carbon Chrome Steel
O.D.
200 mm
Operating temperature range
-40 to 250 ºF
Operating Temperature Range
-40 to 250 °F
Precision
ISO Class 0
Preload
Normal
r (in)
0.1181
r1
0.0433 in
r1as max
0.0394 in
ras max
0.0984 in
Static load rating
66993 lbf
Static Load Rating
66993 lbf
Type
Angular Contact Ball Bearing
Width
3.5433
Duplex Angular Contact Ball Bearing - Back-to-Back Arrangement The NTN 7319BDB Duplex Angular Contact Ball Bearing is engineered for high-performance applications, boasting a back-to-back arrangement that provides enhanced axial load capacity and rigidity. Designed to meet the demanding requirements of various industrial sectors, this bearing ensures smooth operation and longevity in a range of applications. ## Key Features • **Back-to-Back Arrangement**: This configuration allows for the handling of both radial and axial loads, enhancing stability and performance. • **Precision Engineering**: Manufactured to strict tolerances, ensuring optimal fit and function for improved reliability. • **High Load Capacity**: Specifically designed to accommodate heavy loads, making it ideal for applications requiring robust bearing solutions. • **Durable Materials**: Constructed from high-quality steel, which provides excellent wear resistance and extends service life. • **Sealed Design Option**: Available with seals to protect against contaminants, ensuring reliable operation in harsh environments. ## Applications • **Automotive**: Widely used in wheel hubs and drivetrain components where precision and reliability are crucial. • **Industrial Machinery**: Suitable for various applications including pumps, compressors, and conveyors demanding high axial and radial load handling. • **Aerospace Components**: Effective in environments that require stringent quality and performance standards, including precision equipment. ## Benefits • **Enhanced Performance**: The back-to-back arrangement increases stiffness and load carrying capacity, reducing the risk of failure in demanding conditions. • **Reliability**: NTN's reputation for high-quality manufacturing ensures that this bearing meets industry standards for durability and performance. • **Operational Efficiency**: By reducing friction, this bearing contributes to lower energy consumption and improved overall system efficiency. --- *Product information compiled with AI assistance for reference purposes.*
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.
