Miniature
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Miniature

Miniature Ball Bearings

Material: Chrome steel, Carbon steel
Precision: P0, P6, P5, P4, P2
Noise level: Z, Z1, Z2, Z3, Z4
Vibration: V, V1, V2, V3, V4
Radial clearance: C0, C3, C2, C4
Place of origin: Xi'an city, China
Package: Tube package, Single box
Supply ability: 100000 pieces per month
Certificate: ISO9001:2015

Description

Miniature Ball Bearings: Introduction and Benefits for Merchants

 

As a manufacturer of Miniature Ball Bearings based in China with high-quality standards, we take pride in providing an extensive range of miniature bearings to merchants worldwide. These bearings are ideal for various industries, such as robotics, medical equipment, and automotive industries. We understand the challenges faced by merchants when trying to find the right product to suit their needs, which is why we’d like to introduce Miniature Ball Bearings as the solution to all their challenges.

 

What Are Miniature Ball Bearings?

 

Miniature Ball Bearings are smaller than regular ball bearings with a size range from 1mm up to 20mm. These bearings are designed to handle axial loads and radial loads, providing exceptional performance in high rotational speeds. Due to their small size, Miniature Ball Bearings can fit into tight spaces and are commonly used in compact devices with minimal space available.

 

Benefits of Miniature Ball Bearings for Merchants

 

There are numerous benefits of Miniature Ball Bearings for merchants. Here are some reasons why we believe our bearings are worth the investment:

 

1. High-Quality Performance

 

Our Miniature Ball Bearings are manufactured with high-quality materials, ensuring that they offer excellent performance under various conditions. They have low noise levels, run smoothly and can withstand high loads and pressures.

 

2. Improved Efficiency and Productivity

 

Choosing Miniature Ball Bearings can improve the efficiency of machinery and equipment used by merchants. By selecting the right Miniature Ball Bearings, merchants can optimize performance, reduce energy consumption, and minimize the need for maintenance and repair work. The result is an increase in productivity, which leads to significant savings on costs.

 

3. Versatility

 

Miniature Ball Bearings are versatile and can be used in a wide range of applications, such as in medical equipment, robotics, and automation. They are also ideal for small appliances, such as laptop fans, electric motors, and more. Merchants can find innovative ways to use Miniature Ball Bearings and incorporate them into their products.

 

4. Space Saving

 

One of the primary benefits of Miniature Ball Bearings is their small size, which makes them space-saving. They can easily fit into tight spaces, allowing merchants to maximize space utilization in their machinery and equipment.

 

5. Easy to Install

 

Miniature Ball Bearings are easy to install and replace, which cuts down on costly downtime. Once installed, merchants can be assured of a long service life, provided they are maintained correctly.

 

Conclusion

 

Miniature Ball Bearings offer many benefits to merchants, including high-quality performance, improved efficiency, versatility, space-saving, and easy installation. Merchants can choose from various sizes, materials, and designs to suit their specific needs. We welcome merchants worldwide to try our Miniature Ball Bearings and experience the difference in their products' performance. As a Chinese manufacturer, we assure you of high-quality products at affordable prices. Contact us today to learn more.

 

Introduction



Miniature ball bearings are suitable for high-speed and low-noise fields, including various industrial equipment, small rotary motors, etc. With the development of industrial technology, high-precision, high-performance and high-reliability mechanical equipment requires high-speed, low-vibration, small and maintenance-free bearings, etc. The outer diameter of miniature ball bearings is usually less than 9mm, and the minimum bearing inner diameter can be 0.6mm. Regarding their types, there are open type, 2Z type and 2RS type. As for the main materials, there are carbon steel, bearing steel, stainless steel, plastic, ceramics , etc.


Miniature Bearings are widely used in precision instruments, precision electrical equipment, precision equipment, office equipment, measuring equipment, micro motors, household equipment and toys and other related fields.


Bearing Series



The types of the bearings include 68 series, 69 series and 60 series.


small ball bearingmicro ball bearingsmini ball bearing
Sealed type (2RS)Shielded type (2Z)Sealed type (2RS)


Production Details



◆ Quality requirements for bearing steel metallurgy

1. In the bearing steel standard, the qualified range of chemical composition is first specified.

2. The internal structure of the steel is uniform.

3. Non-metallic inclusions seriously affect the fatigue life of steel, and improving the purity of bearing steel is one of the important ways to improve bearing life.

4. Strictly control steel defects. Internal defects mainly include shrinkage cavities, bubbles, white spots, over-burning, porosity and segregation. Except for mild porosity and segregation, other defects are not allowed. External defects mainly refer to surface slag inclusions, cracks, burrs, folds, scarring and thick oxide skin, etc. These defects are not allowed to exist.

5. On the surface, no decarburization layer exceeding a certain concentration is allowed.


miniature ball


◆ Cleanliness of steel balls

In the whole processing of steel balls, we are paying more and more attention to the influence of cleanliness on high-precision precision steel balls, especially for mass production of G3 steel balls. First of all, the cleanliness of the flow of steel balls between processes, especially if the steel balls to be processed before the grinding process are not cleaned properly, the coarse abrasive particles and impurities in the previous process will be brought to the grinding process, which will scratch the surface of the steel balls and prolong the grinding process. The research cycle and the excessive consumption of the steel ball size will cause the change of the curvature of the channel, so that the steel ball cannot reach the various indicators that should be achieved. Secondly, the cleanliness of the grinding workshop environment is not good, and the dust in the air will directly affect the surface quality of the processed steel balls during the grinding process.


precision miniature bearings


Rust Prevention for Bearings



The main factors affecting bearing rust:

1. Parts or finished products are wet by sweat on hands.

2. Sulphur dioxide, dust, moisture and other corrosive gases in the air.

3. Cooling water, rust-proof water, lubricating and rust-proof materials and finished oil seal packaging materials between processes have poor rust-proof ability or deterioration.

4. The cleaning solution (such as water that is not dehydrated after cleaning) is corrosive, causing the deterioration of the anti-rust material and the product to rust.

5. The inner and outer packaging materials are corrosive, or the packaging is damaged due to low mechanical strength, causing rust.


Advantages



The company's own brand "GHB" products have passed ISO9001 quality management system certification, with accuracy levels of P0, P6, P5, and P4. Bearings are exported to more than 35 countries with a good reputation. The company insists on quality as the core, innovation as the driving force, promotes development through service, and sincerely provides services to customers all over the world.


About Us



Shaanxi Gainhui Heavy Industries Co., Ltd. is a professional bearing manufacturer and and distributor in china. Equipped with a professional large factory, we can supply competitive bearing products and OEM service to worldwide customers. With high quality, competitive price and great after-sale service of miniature ball bearings, welcome to contact us in time.


Because we are focused, we are professional.


Packing Methods



miniature bearing manufacturersmr105zz ball bearingminiature bearing sizes
Tube PackageSingle Box PackagePallet Package


Delivery Methods



mr52zz bearingsball bearing 628zztimken miniature bearings
By ExpressBy SeaBy Air


Technical Parameters



tiny ball bearingsskf miniature bearingsminiature precision bearingsminiature deep groove ball bearingsbearing 688zz

Bearing designation

Dimensions (mm)

Basic dynamic load rating

Basic static load rating

Fatigue load limit

Limiting speed

Reference speed

Mass

d

D

B

r

D1

D2

d1

da

Da

ra

Cr

Cor

Cur

nG

nB

m




min.

min.

max.

max.

N

N

N

min–1

min–1

≈kg

623

3

10

4

0.15

7.7

5

4.4

8.6

0.15

640

220

10.6

53 000

57 000

0.001

623-2RSR

3

10

4

0.15

8.2

5

4.4

8.6

0.15

640

220

10.6

32 000

0.001

623-2Z

3

10

4

0.15

8.2

5

4.4

8.6

0.15

640

220

10.6

45 000

57 000

0.001

624

4

13

5

0.2

10.5

7

5.8

11.2

0.2

1 290

490

24.6

45 000

46 500

0.003

624-2RSR

4

13

5

0.2

11.2

7

5.8

11.2

0.2

1 290

490

24.6

26 000

0.003

624-2Z

4

13

5

0.2

11.2

7

5.8

11.2

0.2

1 290

490

24.6

38 000

46 500

0.004

634

4

16

5

0.3

12.5

8.5

6.4

13.6

0.3

1 730

670

35.5

43 000

35 000

0.006

634-2RSR

4

16

5

0.3

13.2

8.5

6.4

13.6

0.3

1 730

670

35.5

24 000

0.006

634-2Z

4

16

5

0.3

13.2

8.5

6.4

13.6

0.3

1 730

670

35.5

36 000

35 000

0.006

625

5

16

5

0.3

12.5

8.5

7.4

13.6

0.3

1 320

440

22.4

43 000

36 500

0.005

625-2RSR

5

16

5

0.3

13.2

8.5

7.4

13.6

0.3

1 320

440

22.4

24 000

0.005

625-2Z

5

16

5

0.3

13.2

8.5

7.4

13.6

0.3

1 320

440

22.4

36 000

36 500

0.005

635

5

19

6

0.3

15.5

10.8

7.4

16.6

0.3

2 600

1100

53

40 000

31 500

0.008

635-2RSR

5

19

6

0.3

16.7

10.8

7.4

16.6

0.3

2 600

1100

53

22 000

0.008

635-2Z

5

19

6

0.3

16.7

10.8

7.4

16.6

0.3

2 600

1100

53

32 000

31 500

0.008

626

6

19

6

0.3

15.5

10.6

8.4

16.6

0.3

2 600

1100

53

38 000

32 500

0.008

626-2RSR

6

19

6

0.3

16.7

10.6

8.4

16.6

0.3

2 600

1100

53

22 000

0.008

626-2Z

6

19

6

0.3

16.7

10.6

8.4

16.6

0.3

2 600

1100

53

32 000

32 500

0.008

607

7

19

6

0.3

15.5

10.6

9

17

0.3

2 600

1100

53

38 000

34 500

0.007

607-2RSR

7

19

6

0.3

16.7

10.6

9

17

0.3

2 600

1100

53

22 000

0.007

607-2Z

7

19

6

0.3

16.7

10.6

9

17

0.3

2 600

1100

53

32 000

35 500

0.008

627

7

22

7

0.3

18

12.4

9.4

19.6

0.3

3 250

1370

72

36 000

30 000

0.011

627-2RSR

7

22

7

0.3

19.1

12.4

9.4

19.6

0.3

3 250

1370

72

20 000

0.011

627-2Z

7

22

7

0.3

19.1

12.4

9.4

19.6

0.3

3 250

1370

72

30 000

30 000

0.012

608

8

22

7

0.3

18

12.4

10

20

0.3

3 250

1370

72

36 000

31 500

0.01

608-2RSR

8

22

7

0.3

19.1

12.4

10

20

0.3

3 250

1370

72

20 000

0.01

608-2Z

8

22

7

0.3

19.1

12.4

10

20

0.3

3 250

1370

72

30 000

32 500

0.011

609

9

24

7

0.3

19.6

14

11

22

0.3

3 650

1630

89

36 000

28 500

0.015

609-2RSR

9

24

7

0.3

20.5

14

11

22

0.3

3 650

1630

89

20 000

0.016

609-2Z

9

24

7

0.3

20.5

14

11

22

0.3

3 650

1630

89

30 000

29 000

0.016

629

9

26

8

0.3

21.4

14.7

11.4

23.6

0.3

4 550

1960

93

34 000

25 500

0.02

629-2RSR

9

26

8

0.3

22.5

14.7

11.4

23.6

0.3

4 550

1960

93

19 000

0.021

629-2Z

9

26

8

0.3

22.5

14.7

11.4

23.6

0.3

4 550

1960

93

28 000

25 500

0.021

For more data, please click the download button at the top of this page to download the catalogue.

 

Why choose us?

  • Our Deep Groove Ball Bearings products are highly regarded for their precision, durability, and reliability.
  • Our vision is to enhance our core competitiveness and accelerate the establishment of a world-class enterprise with global competitiveness.
  • We provide transparent and honest communication with our customers, so that they always know what to expect from our Deep Groove Ball Bearings products and services.
  • Our successful experience in marketing includes expanding sales, strengthening market share, strengthening brand image and increasing sales volume.
  • We offer highly customized Deep Groove Ball Bearings solutions for our customers, based on their specific requirements.
  • Our company's vision is to become an internationally renowned and domestically leading engineering general contracting integrated service provider by providing customers with all-round engineering and technical services centered on improving business performance, based on improving management level, supported by enhancing technical strength and linked by capital operation.
  • Our Deep Groove Ball Bearings are versatile and can be used in a variety of applications and industries.
  • We will initiative to participate in international competition to be a first- class manufacturer of this product in the world.
  • Our company is focused on long-term relationships with our customers, based on trust and mutual benefit.
  • We are a modern enterprise with unified and standardized management mechanism and advanced production equipment. We have also established a complete quality assurance system to ensure the good reputation and the excellent quality of Miniature Ball Bearings.

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