China Standard China Manufacturer Miniature Chrome/Stainless Steel Mini Deep Groove Ball Bearing (608zz 623zz 624zz 625zz 626zz 688zz 635zz) for 3D Printer Parts with Great quality

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

ball bearing

What are the Common Signs of Wear or Damage in Ball Bearings that Indicate the Need for Replacement?

Ball bearings are subjected to wear and stress during operation, and over time, they may exhibit signs of damage or deterioration that warrant replacement. Recognizing these signs is crucial to prevent catastrophic failure and ensure safe and reliable operation. Here are the common signs of wear or damage in ball bearings:

  • Unusual Noise:

If you hear unusual grinding, clicking, or rumbling noises coming from the bearing during operation, it may indicate worn-out or damaged components. Unusual noise suggests that the bearing is no longer operating smoothly.

  • Vibration:

Excessive vibration in the machinery can be a sign of bearing wear. Vibrations can result from uneven wear, misalignment, or damaged components within the bearing.

  • Increased Temperature:

Higher operating temperatures than usual may indicate increased friction due to inadequate lubrication, wear, or other issues. Monitoring the bearing’s temperature can help identify potential problems.

  • Irregular Movement:

If you notice irregular movement, jerking, or sticking during rotation, it could be a sign that the bearing is no longer operating smoothly. This may be due to damaged rolling elements or raceways.

  • Reduced Performance:

If the machinery’s performance has decreased, it may be due to a compromised bearing. Reduced efficiency, increased energy consumption, or a decline in overall performance could be indicators of bearing wear.

  • Visible Wear or Damage:

Inspect the bearing for visible signs of wear, such as pitting, scoring, or discoloration on the rolling elements or raceways. Severe wear or damage is a clear indication that the bearing needs replacement.

  • Leakage or Contamination:

If there is evidence of lubricant leakage, contamination, or the presence of foreign particles around the bearing, it suggests that the seal or shield may be compromised, leading to potential damage.

  • Looseness or Excessive Play:

If you can feel excessive play or looseness when manually moving the bearing, it could indicate worn-out components or misalignment.

  • Reduced Lifespan:

If the bearing’s expected lifespan is significantly shorter than usual, it may be due to inadequate lubrication, excessive loads, or improper installation, leading to accelerated wear.

  • Frequent Failures:

If the bearing is consistently failing despite regular maintenance and proper use, it could indicate a chronic issue that requires addressing, such as inadequate lubrication or misalignment.

It’s important to conduct regular inspections, monitor performance, and address any signs of wear or damage promptly. Replacing worn or damaged ball bearings in a timely manner can prevent further damage to machinery, reduce downtime, and ensure safe and efficient operation.

ball bearing

What Role do Seals and Shields Play in Protecting Ball Bearings from Dirt and Debris?

Seals and shields are critical components of ball bearings that play a crucial role in protecting them from dirt, debris, moisture, and contaminants in various applications. These protective features help maintain the integrity of the bearing’s internal components and ensure reliable operation. Here’s how seals and shields contribute to bearing protection:

  • Contaminant Exclusion:

Seals and shields create a physical barrier between the external environment and the bearing’s interior. They prevent dust, dirt, water, and other contaminants from entering the bearing and coming into contact with the rolling elements and raceways.

  • Lubrication Retention:

Seals and shields help retain lubrication within the bearing. They prevent the lubricant from escaping and contaminants from entering, ensuring that the bearing remains properly lubricated for smooth operation and reduced friction.

  • Corrosion Prevention:

Seals and shields protect bearing components from exposure to moisture and corrosive substances. By preventing moisture ingress, they help extend the bearing’s lifespan by minimizing the risk of corrosion-related damage.

  • Extended Bearing Life:

Seals and shields contribute to the overall longevity of the bearing by reducing wear and damage caused by contaminants. They help maintain a clean internal environment, which promotes proper rolling contact and minimizes the risk of premature failure.

  • Enhanced Performance in Harsh Environments:

In applications exposed to harsh conditions, such as outdoor machinery or industrial settings, seals and shields are vital. They protect bearings from abrasive particles, chemicals, and extreme temperatures, ensuring reliable performance despite challenging conditions.

  • Noise and Vibration Reduction:

Seals and shields can help reduce noise and vibration generated by the bearing. They provide additional damping and stability, contributing to smoother operation and enhanced user comfort in noise-sensitive applications.

  • Customized Protection:

Manufacturers offer a variety of seal and shield designs to suit different application requirements. Some seals provide higher levels of protection against contamination, while others are designed for high-speed or high-temperature environments.

  • Trade-Offs:

While seals and shields offer significant benefits, they can also introduce some friction due to contact with the bearing’s inner or outer ring. Engineers must balance the level of protection with the desired operating characteristics, considering factors like friction, speed, and environmental conditions.

Overall, seals and shields play a vital role in maintaining the integrity and performance of ball bearings. By effectively preventing contaminants from entering and preserving lubrication, they ensure the smooth and reliable operation of machinery and equipment in a wide range of applications.

ball bearing

What are the Different Components that Make up a Typical Ball Bearing?

A typical ball bearing consists of several essential components that work together to reduce friction and support loads. Here are the main components that make up a ball bearing:

  • Outer Ring:

The outer ring is the stationary part of the bearing that provides support and houses the other components. It contains raceways (grooves) that guide the balls’ movement.

  • Inner Ring:

The inner ring is the rotating part of the bearing that attaches to the shaft. It also contains raceways that correspond to those on the outer ring, allowing the balls to roll smoothly.

  • Balls:

The spherical balls are the rolling elements that reduce friction between the inner and outer rings. Their smooth rolling motion enables efficient movement and load distribution.

  • Cage or Retainer:

The cage, also known as the retainer, maintains a consistent spacing between the balls. It prevents the balls from touching each other, reducing friction and preventing jamming.

  • Seals and Shields:

Many ball bearings include seals or shields to protect the internal components from contaminants and retain lubrication. Seals provide better protection against contaminants, while shields offer less resistance to rotation.

  • Lubricant:

Lubrication is essential to reduce friction, wear, and heat generation. Bearings are typically filled with lubricants that ensure smooth movement between the balls and raceways.

  • Flanges and Snap Rings:

In some designs, flanges or snap rings are added to help position and secure the bearing in its housing or on the shaft. Flanges prevent axial movement, while snap rings secure the bearing radially.

  • Raceways:

Raceways are the grooved tracks on the inner and outer rings where the balls roll. The shape and design of the raceways influence the bearing’s load-carrying capacity and performance.

  • Anti-Friction Shield:

In certain high-speed applications, a thin anti-friction shield can be placed between the inner and outer rings to minimize friction and heat generation.

These components work together to enable the smooth rolling motion, load support, and reduced friction that characterize ball bearings. The proper design and assembly of these components ensure the bearing’s optimal performance and longevity in various applications.

China Standard China Manufacturer Miniature Chrome/Stainless Steel Mini Deep Groove Ball Bearing (608zz 623zz 624zz 625zz 626zz 688zz 635zz) for 3D Printer Parts   with Great qualityChina Standard China Manufacturer Miniature Chrome/Stainless Steel Mini Deep Groove Ball Bearing (608zz 623zz 624zz 625zz 626zz 688zz 635zz) for 3D Printer Parts   with Great quality
editor by CX 2024-04-19