Product Description

China Factory 3d Printer Parts Deep Groove Ball Bearing 623zz 624zz 625zz 626zz 635zz 608zz 688zz
 

Single row deep groove ball bearings are particularly versatile. They are simple in design, non-separable, suitable for high and even very high speeds and are robust in operation, requiring little maintenance. Deep raceway grooves and the close conformity between the raceway grooves and the balls enable deep groove ball bearings to accommodate axial loads in both directions, in addition to radial loads, even at high speeds.

1. 623zz : 3mm*10mm*4mm
2. 624zz : 4mm*13mm*5mm
3. 625zz : 5mm*16mm*5mm
4. 626zz : 6mm*19mm*6mm
5. 608zz : 8mm*22mm*7mm
6. 688zz : 8mm*16mm*5mm
7. 635zz : 5mm*19mm*6mm
 

Detailed Photos

 

Product Parameters

 

Product Description

Any combination of closures is available

Basic
Bearing
No.

Nominal Bearing Dimensions

Preferred Shoulder Diameters

d

D

B,C

r (min)

da (min)

da (max)

Da (max)

mm

inch

mm

inch

mm

inch

mm

inch

mm

inch

mm

inch

mm

inch

604

4

0.1575

12

0.4724

4

0.1575

0.2

0.008

5.4

0.2126

6.6

0.2598

10.6

0.4173

605

5

0.1969

14

0.5512

5

0.2756

0.2

0.008

6.6

0.2600

7.4

0.2913

12.4

0.4880

606

6

0.2362

17

0.6693

6

0.2756

0.3

0.012

8.0

0.3150

8.6

0.3386

15.0

0.5910

607

7

0.2756

19

0.748

6

0.2756

0.3

0.012

9.0

0.3543

10.4

0.4094

17.0

0.6693

608

8

0.3149

22

0.8661

7

0.2756

0.3

0.012

10.0

0.3937

12.2

0.4803

10.0

0.7874

609

9

0.3543

24

0.9449

7

0.2756

0.3

0.012

11.0

0.4331

13.1

0.5157

12.0

0.8661

 

Basic
Bearing
No.

Nominal Bearing Dimensions

Preferred Shoulder Diameters

d

D

B,C

r (min)

da (min)

da (max)

Da (max)

mm

inch

mm

inch

mm

inch

mm

inch

mm

inch

mm

inch

mm

inch

624 

 4

0.1575

13

0.5118

5

0.1968

0.2

0.007

5.6

0.220

6.2

0.244

11.4

0.449

625

 5

0.1969

13

0.6299

5

0.1968

0.3

0.012

7.0

0.276

7.6

0.299

14.0

0.551

626

 6

0.2362

16

0.7480

6

0.2362

0.3

0.012

8.0

0.315

9.5

0.374

17.0

0.669

627

 7

0.2756

22

0.8661

7

0.2756

0.3

0.012

9.0

0.354

12.2

0.480

20.0

0.787

628

5

0.3149

24

0.9448

8

0.3149

0.3

0.012

10.0

0.394

12.1

0.476

17.0

0.669

629

9

0.3543

26

1.5716

8

0.3149

0.3

0.012

11.5

0.453

14.0

0.945

 

Basic
Bearing
No.

Nominal Bearing Dimensions

Preferred Shoulder Diameters

d

D

B,C

r (min)

da (min)

da (max)

Da (max)

mm

inch

mm

inch

mm

inch

mm

inch

mm

inch

mm

inch

mm

inch

635 

5 0.1969 19 0.7480 6 0.2362 0.3 0.012 7.0 0.276 9.5 0.374 17.0 0.669

636

6 0.2362 22 0.8661 7 0.8661 0.3 0.012

637

7 0.2756 26 1.5716 9 0.3543 0.3 0.012

638

8 0.3149 28 1.1571 9 0.3543 0.3 0.012 10.0 0.394 26.0 1.571

639

9 0.3543 30 1.1811 10 0.3937 0.6 0.571

 

Basic
Bearing
No.

Nominal Bearing Dimensions

Preferred Shoulder Diameters

d

D

B

r (min)

da (min)

da (max)

Da (max)

Open Shielded sealed

mm

inch

mm

inch

mm

inch

mm

inch

mm

inch

mm

inch

mm

inch

mm

inch

685

5 0.1969 11 0.4331 3 0.1181 5 0.1969 0.15 0.006 6.2 0.244 6.2 0.244 9.9 0.390

686

6 0.2362 13 0.5118 3.5 0.1378 5 0.1969 0.15 0.006 7.4 0.291 7.4 0.291 11.7 0.461

687

7 0.2756 14 0.5512 3.5 0.1378 5 0.1969 0.15 0.006 8.5 0.335 8.5 0.335 12.7 0.500

688

8 0.3150 16 0.6299 4 0.1575 5 0.1969 0.20 0.008

689

9 0.3543 17 0.6693 4 0.1575 5 0.1969 0.20 0.008 10.7 0.421 10.7 0.421 15.2 0.598

 

Basic
Bearing
No.

Nominal Bearing Dimensions

Preferred Shoulder Diameters

d

D

B,C

r (min)

da (min)

da (max)

Da (max)

mm

inch

mm

inch

mm

inch

mm

inch

mm

inch

mm

inch

mm

inch

693 

3 0.1181 8 0.3150 3 0.1181 0.15 0.006 4.3 0.169 4.3 0.169 7.3 0.287

W693

3 0.1181 8 0.3150 4 0.1575 0.15 0.006 4.2 0.165 4.2 0.165 6.8 0.268

694

4 0.1575 11 0.4331 4 0.1575 0.20 0.008 5.2 0.205 5.2 0.205 9.8 0.386

695

5 0.1969 13 0.5118 4 0.1575 0.20 0.008 6.6 0.260 6.6 0.260 11.4 0.449

696

6 0.2362 15 0.5906 5 0.1969 0.30 0.012 7.6 0.299 7.6 0.299 13.4 0.528

697

7 0.2756 17 0.6693 5 0.1969 0.30 0.012 9.0 0.354 9.0 0.354 15.0 0.591

698

8 0.3150 19 0.7480 6 0.2362 0.30 0.012 10.0 0.394 10.0 0.394 16.5 0.650

699

9 0.3543 20 0.7874 6 0.2362 0.30 0.012 11.0 0.433 11.6 0.457 18.0 0.709

 

Common Options

Z
ZZ
RS
2RS
 

: One Shield
: Two Shields
: One Contact Seal
: Two Contact Seals
 

 

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Aligning: Non-Aligning Bearing
Separated: Unseparated
Rows Number: Single
Load Direction: Radial Bearing
Material: Bearing Steel
Transport Package: Industrial Exporting Packing,or Upon The Customer′
Customization:
Available

|

Customized Request

steel ball bearing

How do steel ball bearings enhance the overall efficiency and functionality of machinery and equipment?

Steel ball bearings play a crucial role in enhancing the overall efficiency and functionality of machinery and equipment. They provide various benefits that improve performance, reduce friction, and enable smooth operation. Here are some ways in which steel ball bearings enhance the efficiency and functionality of machinery and equipment:

1. Friction Reduction:

Steel ball bearings are designed to minimize friction between moving parts. The rolling motion of the steel balls reduces the contact area and frictional resistance compared to sliding contact. This reduction in friction results in less energy loss and improved mechanical efficiency. By reducing friction, steel ball bearings help optimize the operation of machinery and equipment, leading to lower energy consumption and increased overall efficiency.

2. Load Distribution:

Steel ball bearings distribute loads evenly across their contact surfaces. This load distribution capability allows machinery and equipment to handle higher loads without excessive wear or premature failure. By evenly distributing the applied loads, steel ball bearings help prevent localized stress concentrations, prolonging the service life of the equipment and reducing the need for frequent maintenance or replacements.

3. High-Speed Capability:

Steel ball bearings are well-suited for high-speed applications. The rolling element design and low friction characteristics allow steel ball bearings to operate efficiently at high rotational speeds. They can withstand the centrifugal forces generated at high speeds while maintaining stability and precision. The ability of steel ball bearings to handle high speeds enables machinery and equipment to operate at optimal performance levels, resulting in improved productivity and throughput.

4. Precision and Accuracy:

Steel ball bearings contribute to the precision and accuracy of machinery and equipment. The uniform size and shape of the steel balls, combined with precise manufacturing tolerances, result in consistent and predictable bearing performance. This precision allows for accurate positioning, smooth motion control, and reliable operation of machinery and equipment. Whether it’s in machine tools, robotics, or other precision applications, steel ball bearings help maintain the required levels of precision and accuracy.

5. Vibration and Noise Reduction:

Steel ball bearings help reduce vibration and noise levels in machinery and equipment. The rolling motion of the steel balls dampens vibrations generated during operation, leading to smoother and quieter performance. Reduced vibration and noise levels not only improve user comfort but also minimize the risk of damage to sensitive components and increase the overall reliability of the equipment.

6. Versatility and Adaptability:

Steel ball bearings are available in various configurations, sizes, and designs, making them versatile and adaptable to different applications. Manufacturers offer a wide range of bearing types, such as deep groove ball bearings, angular contact ball bearings, and thrust ball bearings, to suit specific requirements. This versatility allows machinery and equipment designers to select the most appropriate steel ball bearings based on factors such as load capacity, speed, space limitations, and operating conditions. The ability to choose from a diverse range of steel ball bearing options ensures optimal performance and functionality in different industrial sectors.

7. Maintenance and Serviceability:

Steel ball bearings simplify maintenance and serviceability of machinery and equipment. Their durability and resistance to wear minimize the need for frequent maintenance or replacement. Additionally, steel ball bearings can be easily accessed, inspected, and replaced when necessary, reducing downtime and maximizing operational efficiency. Proper lubrication and periodic maintenance of the bearings help ensure their long-term performance and extend the service life of the machinery and equipment.

By enhancing efficiency, reducing friction, enabling high-speed operation, providing precision and accuracy, reducing vibration and noise, offering versatility and adaptability, and simplifying maintenance, steel ball bearings contribute significantly to the overall efficiency and functionality of machinery and equipment in various industries.

steel ball bearing

Can you explain the installation and alignment considerations for steel ball bearings?

Proper installation and alignment are critical for the optimal performance and longevity of steel ball bearings. Let’s explore the key considerations for installing and aligning these bearings:

1. Cleanliness:

Prior to installation, it is essential to ensure that the bearing housing, shaft, and surrounding components are clean and free from dirt, debris, and contaminants. Any particles or impurities can affect the bearing’s performance and cause premature wear or damage. Cleaning the surfaces thoroughly and using appropriate cleaning agents or solvents is recommended.

2. Shaft and Housing Tolerances:

Steel ball bearings require precise shaft and housing tolerances for proper fit and alignment. It is crucial to follow the manufacturer’s specifications and guidelines for the recommended tolerance range. Excessive clearance or interference can lead to improper load distribution, increased friction, and premature failure of the bearing.

3. Bearing Handling:

When handling steel ball bearings, care should be taken to avoid dropping or impacting the bearing. Rough handling can cause damage to the balls, raceways, or cage, compromising the bearing’s performance. It is advisable to use clean gloves and suitable tools to prevent contamination or accidental damage during the installation process.

4. Mounting Methods:

There are various methods for mounting steel ball bearings, including press fitting, thermal expansion, and using mounting tools. The chosen method should be appropriate for the bearing size, type, and application. Applying force evenly and gradually while avoiding excessive pressure is crucial to prevent bearing distortions or misalignment during mounting.

5. Lubrication:

Prior to installation, the bearing should be properly lubricated with the recommended lubricant. Lubrication ensures smooth operation, reduces friction, and protects against premature wear. The appropriate quantity and type of lubricant should be applied according to the manufacturer’s instructions, taking into account factors such as speed, load, and operating conditions.

6. Bearing Alignment:

Proper alignment of steel ball bearings is essential for even load distribution and minimizing stress on the bearing components. Misalignment can lead to increased friction, vibration, and premature failure. Aligning the bearing with the shaft and housing using appropriate alignment tools or techniques, such as dial indicators or laser alignment systems, helps ensure optimal performance and longevity.

7. Preload and Clearance:

Depending on the application, preload or clearance adjustments may be necessary to achieve the desired performance. Preload refers to applying a slight internal axial load to eliminate internal clearance, while clearance allows for a certain level of axial or radial play. The appropriate preload or clearance should be determined based on the manufacturer’s recommendations and the specific operating conditions.

8. Post-Installation Checks:

After the bearing is installed, it is important to perform post-installation checks to verify proper alignment, smooth rotation, and absence of abnormal noise or vibration. These checks can involve verifying the bearing’s axial and radial runout, conducting visual inspections, and monitoring the bearing’s performance during the initial operation.

By considering these installation and alignment considerations for steel ball bearings, it is possible to ensure the correct fit, alignment, and performance of the bearings. Proper installation and alignment contribute to reduced friction, extended bearing life, and reliable operation in various industrial applications.

steel ball bearing

Can you explain the key characteristics and advantages of steel ball bearings?

Steel ball bearings possess several key characteristics and offer numerous advantages in various applications. Let’s explore them in detail:

1. Low Friction: Steel ball bearings have a low coefficient of friction due to the rolling contact between the balls and the raceways. This reduces the resistance to motion, resulting in improved efficiency and energy savings in mechanical systems.

2. Load Capacity: Steel ball bearings have excellent load-carrying capacity. The spherical shape of the balls enables them to distribute loads evenly across the raceways, allowing the bearings to handle both radial and axial loads effectively.

3. High-Speed Operation: Due to their efficient rolling action and low friction, steel ball bearings are well-suited for high-speed applications. They enable smooth rotation at elevated speeds, making them widely used in machinery and equipment requiring rapid motion.

4. Versatility: Steel ball bearings are available in various sizes, configurations, and precision levels, allowing for versatility in different applications. They can accommodate diverse operating conditions and fit the specific requirements of a wide range of mechanical systems.

5. Durability: Steel ball bearings are highly durable and resistant to wear. The balls and raceways are typically made from hardened steel, providing excellent strength and longevity. This enables the bearings to withstand heavy loads and operate reliably even in demanding environments.

6. Low Maintenance: Steel ball bearings require minimal maintenance when properly lubricated. Regular lubrication helps to reduce friction, prevent corrosion, and extend the service life of the bearings. This low maintenance requirement contributes to cost savings and operational efficiency.

7. Wide Application Range: Steel ball bearings find applications in a diverse range of industries and systems. They are commonly used in automotive components, industrial machinery, electric motors, household appliances, aerospace equipment, and more. Their versatility and performance make them a popular choice across various sectors.

8. Cost-Effective: Steel ball bearings offer a cost-effective solution for many applications. They provide a balance between performance, durability, and affordability, making them widely accessible and economically viable for a range of mechanical systems.

In summary, steel ball bearings exhibit low friction, high load capacity, suitability for high-speed operation, versatility, durability, low maintenance requirements, wide applicability, and cost-effectiveness. These characteristics and advantages make steel ball bearings a fundamental component in numerous industries, contributing to efficient and reliable mechanical systems.

China manufacturer China Manufacturer Double Shielded Miniature High Carbon Chrome Steel Mini Deep Groove Ball Bearing (608zz 623zz 624zz 625zz 626zz 688zz 635zz)   bearing distributorsChina manufacturer China Manufacturer Double Shielded Miniature High Carbon Chrome Steel Mini Deep Groove Ball Bearing (608zz 623zz 624zz 625zz 626zz 688zz 635zz)   bearing distributors
editor by CX 2024-04-17

Steel Ball Bearings

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