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Single Row Deep Groove Ball Bearings

Single row deep groove ball bearings are a versatile and reliable solution for a wide range of applications, offering high load capacity, high-speed capability, and durability. We recommend implementing a maintenance schedule that includes regular lubrication, cleaning, and inspection to prevent premature failure.

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SKF Single row deep groove ball bearing
7321-7340 of 10360 products
7321-7340 of 10360 products
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Where are single row deep groove ball bearings used?

Single row deep groove ball bearings are excellent for high speed applications with a low to moderate load. They are generally quiet during operation and require little maintenance.

These bearings are found across all industries, and are suitable for a vast range of applications. They are available with metal shields or rubber seals along with a range of other sealing materials, to suit every operating environment.

Thanks to their versatility and high level of performance, single row deep groove ball bearings have become the most commonly used bearing worldwide. 

Single row deep groove ball bearings FAQs

What are single row deep groove ball bearings?

Single row deep groove ball bearings are the most commonly used type of ball bearings. They consist of a single row of rolling elements (balls) between an inner and outer ring, with a cage that keeps the balls evenly spaced. These bearings are capable of handling radial loads and moderate axial loads in both directions.

What are the typical applications of single row deep groove ball bearings?

Single row deep groove ball bearings are versatile and used in many applications, including:

  • Electric motors and generators
  • Automotive parts (wheel hubs, gearboxes, transmissions)
  • Pumps and compressors
  • Household appliances (washing machines, fans)
  • Industrial machinery (conveyors, fans, blowers)
  • Agricultural equipment Their simple design, reliability, and ability to operate at high speeds make them ideal for a wide range of applications.

What is the difference between open and sealed/shielded single row deep groove ball bearings?
  • Open bearings: These bearings do not have seals or shields and are designed to be lubricated externally. They are suitable for clean environments where re-lubrication is possible.
  • Sealed bearings (RS or 2RS): These bearings have contact seals that protect against contaminants like dust and moisture. They are pre-lubricated and usually maintenance-free.
  • Shielded bearings (Z or ZZ): These bearings have non-contact metal shields to protect against larger particles, offering less friction than sealed bearings but more protection than open bearings.

What factors should I consider when selecting a single row deep groove ball bearing?

To select the right bearing, consider:

  • Load capacity: Ensure the bearing can handle the expected radial and axial loads.
  • Speed rating: Make sure the bearing is suitable for the operating speed.
  • Environmental conditions: Choose the appropriate sealing type depending on whether contamination, moisture, or dust is a factor.
  • Bearing size: Select the correct inner diameter (bore), outer diameter, and width for your application.
  • Lubrication needs: If lubrication is challenging, consider sealed or shielded bearings.

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SKF Precision Bearings

SKF offers a wide range of precision bearings designed to meet the demanding requirements of various high-precision applications

  • Deep Groove Ball Bearings - Suitable for high-speed applications with low friction

  • Angular Contact Ball Bearings - Designed for high-speed and high-precision applications

Applications:

  • High-speed machinery

  • Medical devices

  • Precision Instruments

  • Machine tool spindles

  • Robotics

  • Industrial machinery

 

SKF super-precision bearings are designed for applications requiring the highest levels of accuracy, speed, and reliability. They are used in industries where performance and precision are critical.

  • Super-Precision Angular Contact Ball Bearings - Used in high-speed spindles and precision machinery

  • Super-Precision Cylindrical Roller Bearings - Provide high rigidity and load capacity for demanding applications

  • Super-Precision Thrust Bearings - Designed for high axial load capacity and precision

Applications:

  • Machine tool spindles

  • High-speed turbines

  • Precision instruments

  • Robotics

  • Vacuum pumps

  • Printing machinery

  • High-speed rolling mills

  • Precision ball screws

 

Features of SKF Precision Bearings:

  • High running accuracy

  • High-speed performance

  • High system ridigity

  • Minimise vibration

  • Minimise noise

  • Minimise friction

  • Can be customised for your applications needs

How do I choose the right SKF precision bearing for my application?

Choosing the right SKF precision bearing depends on several factors, including load capacity, speed, precision requirements, and environmental conditions. Get in touch with us today to find the correct precision bearing for your applications needs

 

What are the benefits of using SKF's advanced coatings on precision bearings?

SKF's advanced coatings, such as NoWear, enhance wear resistance, reduce friction, and extend bearing life. These coatings are particularly beneficial in demanding applications where standard bearings may not perform adequately.

 

How can I extend the life of my SKF precision bearings?

Proper maintenance, including regular lubrication, monitoring for signs of wear, and ensuring correct installation, can extend the life of SKF precision bearings. Using high-performance lubricants and following SKF's maintenance guidelines is also recommended

 

How do SKF super-precision bearings differ from standard precision bearings?

SKF super-precision bearings offer higher levels of accuracy, speed, and reliability compared to standard precision bearings. They are designed for applications requiring the utmost precision, such as high-speed spindles, precision instruments, and robotics.

SKF Precision Bearings

RHP Precision Bearings

Key Features of RHP Precision Bearings:

  • High Precision: Manufactured to tight tolerances for exceptional accuracy and consistent performance.

  • Durability: Made from high-quality materials to ensure long service life and reliability.

  • Low Friction: Engineered to minimise friction, reducing energy consumption and heat generation.

  • High Speed Capability: Designed to operate at high speeds with minimal noise and vibration.

  • Versatility: Available in various sizes and configurations to meet specific application requirements.

 

Common applications of RHP precision bearings:

  • Machine tools - Spindles, grinding machines, CNC machinery, lathes

  • Medical equipment

  • Robotics

  • Textiles

  • Semiconductor manufacturing

  • Optical equipment

  • Printing machinery

  • Renewable energy

RHP Precision Bearings

NSK Precision Bearings

Key Features of NSK Precision Bearings:

  • High Accuracy: NSK precision bearings are manufactured to tight tolerances, ensuring high accuracy and consistent performance.

  • High Speed: These bearings are designed to operate at high speeds, making them suitable for applications where rapid rotation is required.

  • Durability: NSK uses high-quality materials and advanced manufacturing processes to ensure the durability and longevity of their precision bearings.

  • Low Noise and Vibration: Precision bearings from NSK are engineered to minimise noise and vibration, which is crucial for applications requiring smooth and quiet operation.

 

Types of NSK Precision Bearings:

  • Angular contact ball bearings - High-speed operation with low noise and vibration. Suitable for CNC spindles, machine tools, and robotics.

  • Ball screw support bearings - Preloaded options to reduce backlash. Suitable for CNC machines, precision actuators, and linear motion systems.

  • Cylindrical roller bearings - High-speed performance with low heat generation. Suitable for rotary tables, printing presses, and heavy machinery.

  • Double row bearings - Preloaded for high rigidity and improved vibration resistance. Suitable for machine tools, robotics, and industrial machinery.

 

Applications of NSK Precision Bearings

  • Machine tools - High-speed spindles, ball screws, lathes, CNC machines

  • Robotics - Automation systems, precision motion control for industrial robots

  • Medical equipment - MRI scanners, CT machines, dental tools

  • Precision instruments - Measuring equipment, optical instruments, positioning systems

  • Energy - Wind turbines, power generators

  • Industrial machinery

 

NSK Precision Bearings FAQs

What are NSK Precision Bearings?

These bearings are designed to handle both high-speed and high-load conditions, offering minimal friction and smooth operation for applications where precision motion is critical.

How do I choose the right NSK Precision Bearing?

Choosing the right NSK Precision Bearing involves considering the following factors:

  • Load type

  • Speed requirements

  • Temperature conditions

  • Size and space constraints

  • Environmental conditions

How long do NSK Precision Bearings last?

The lifespan of NSK Precision Bearings depends on factors such as the load, speed, lubrication, and operating conditions. With proper maintenance, lubrication, and installation, NSK bearings are designed to provide long service life.

NSK Precision Bearings

FAG Precision Bearings

Key features of FAG Precision Bearings include:

  • High accuracy and tight tolerances

  • High-speed capabilities

  • Durability and long service life

  • Low noise and vibration

  • High load-carrying capacity

  • Variety of types to suit different applications

 

Types of FAG Precision Bearings

  • Angular contact ball bearings - single-row, double-row

  • Cylindrical roller bearings - single-row, double-row

  • Needle roller bearings

  • Ball screw support bearings

  • Precision ball bearings - deep groove ball bearings

  • Spherical roller bearings - high-precision spherical roller

 

FAG Precision Bearings Applications

  • Machine tools - spindles, ball screws, rotary tables

  • Robotics - industrial robots, automation systems 

  • Semiconductor manufacturing - lithography machines, wafer processing equipment

  • Renewable energy - wind turbines, solar trackers

  • Textile - spinning and weaving machines

  • Packaging machinery - filling and sealing machines

These applications benefit from the high accuracy, reliability, and performance of FAG Precision Bearings, ensuring optimal operation and longevity in demanding environments.

 

FAG Precision Bearings FAQs

How do I maintain FAG Precision Bearings?

Proper maintenance of FAG Precision Bearings includes:

  • Regular lubrication with the appropriate type and amount of lubricant

  • Keeping the bearings clean and free from contaminants

  • Monitoring bearing performance and replacing them when signs of wear or damage are detected

 

How do I select the right FAG Precision Bearing for my application?

Selecting the right FAG Precision Bearing involves considering factors such as load capacity, speed, accuracy, rigidity, and environmental conditions.

 

Are there any special considerations for high-speed applications?

For high-speed applications, it is important to consider factors such as:

  • Bearing type and design

  • Lubrication method (oil or grease)

  • Precision class and tolerances

FAG Precision Bearings

INA Precision Bearings

Key Features of INA Precision Bearings

High Precision and Accuracy

  • Designed to meet strict tolerance standards for optimal performance in precision applications.

Low Friction and Smooth Operation

  • Advanced designs minimise friction, reducing energy loss and heat generation.

High-Speed Performance

  • Optimised for stable operation at high rotational speeds.

Exceptional Rigidity

  • High axial and radial stiffness ensures reliable performance under heavy loads and precision conditions.

 

Types of INA Precision Bearings

  • Angular contact ball bearings - High-speed performance with low friction. Suitable for CNC spindles, robotics, and precision machinery

  • Cylindrical roller bearings - Reduced internal friction and heat generation. Suitable for high-speed applications

  • Needle roller bearings - Compact bearings with high radial load-carrying capacity. Suitable for gearboxes, transmissions, and industrial machinery

 

Applications of INA Precision Bearings

  • Machine tools - CNC Spindles, grinding machines, rotary tables

  • Robotics - Robotic arms, joints, and automation systems requiring high precision

  • Medical devices - Diagnostic tools, surgical equipment

  • Industrial automation - Conveyors, linear guides, and actuators in automated systems

  • Energy - Wind turbines and power generation equipment

INA Precision Bearings

Timken Precision Bearings
US