Product Description

Ceramic ball bearing miniature bearing 608ZZ 693ZZ 625ZZ roller bearing

Quick Details

Type: Ceramic Ball Brand Name: YD Bore Size: 6 – 600 mm
Outside Diameter: 10 – 900 mm     Place of Origin: ZheJiang China (Mainland)
Certification:: ISO900 & IQNET clearance: C0 C3 Vibration: V1,V2,V3
tupe: Ceramic Ball Seals: open ZZ 2RS materail: CERAMIC
Noisy: Z1,Z2,Z3

Ceramic Bearing
1, Low noise
2, Competitive Price
3, Quick Delivery, Good Service

Packaging & Delivery
Packaging Detail: Tube & Box Marking: 1. Lasermarking on outerface of outerring like Brand, 2. Print Brand on Rubber/Metal shield
Delivery Detail: 15days

They can be used as high-speed bearings, high temperature bearings, corrosion-resistant bearings, shielded bearings, electrical insulation bearings and so on.
1, Material: ZrO2, Si3N4, SiC and Al2O3, etc.
Characteristics of silicon nitride ceramic bearing:
Because of its high compressive strength, contact fatigue resistance that is superior to chrome steels, electrical resistivity and low coefficient of friction versus bearing steels, silicon nitride ceramic bearings can be widely used in aviation, aerospace, marine, petroleum, chemical, automotive, electronics, metallurgy, electric power, textile, pumps, medical equipment, scientific research, national defense, military and other domains.
Materail of bearing:
Rings: Silicon nitride ceramic
Balls: Silicon nitride balls.
Cage: PTFE, nylon 66, PEEK, SS304, etc.


600 Ceramic bearings
Bearings Model d D D-d B
603 3 9 6.000 3
604 4 12 8.000 4
605 5 14 9.000 5
605LL 5 14 9.000 5
606 6 17 11.000 6
606LL 6 17 11.000 6
607 7 19 12.000 6
607LL 7 19 12.000 6
608 8 22 14.000 7
608L 8 22 14.000 7
608LL 8 22 14.000 7
609 9 24 15.000 7
609LL 9 24 15.000 7


Bearing No Bearing No Bearing No Bearing No Bearing No Bearing No Bearing No Bearing No
6000CE 6200CE 6300CE 6800CE 6900CE 623CE 1200CE UC203CE
6001CE 6201CE 6301CE 6801CE 6901CE 624CE 1201CE UC204CE
6002CE 6202CE 6302CE 6802CE 6902CE 625CE 1202CE UC205CE
6003CE 6203CE 6303CE 6803CE 6903CE 626CE 1203CE UC206CE
6004CE 6204CE 6304CE 6804CE 6904CE 627CE 1204CE UC207CE
6005CE 6205CE 6305CE 6805CE 6905CE 628CE 1205CE UC208CE
6006CE 6206CE 6306CE 6806CE 6906CE 629CE 1206CE UC209CE
6007CE 6207CE 6307CE 6807CE 6907CE 603CE 1207CE UC210CE
6008CE 6208CE 6308CE 6808CE 6908CE 604CE 1208CE 51100CE
6009CE 6209CE 6309CE 6809CE 6909CE 605CE 1209CE 51101CE
6571CE 6210CE 6310CE 6810CE 6910CE 606CE 1210CE 51102CE
6011CE 6211CE 6311CE 6811CE 6911CE 607CE 2200CE 51103CE
6012CE 6212CE 6312CE 6812CE 6912CE 608CE 2201CE 51104CE
6013CE 6213CE 6313CE 6813CE 6913CE 609CE 2202CE 51105CE
6014CE 6214CE 6314CE 6814CE 6914CE 683CE 2203CE 51106CE
6015CE 6215CE 6315CE 6815CE 6915CE 684CE 2204CE 51107CE
6016CE 6216CE 6316CE 6816CE 6916CE 685CE 2205CE 51108CE
6017CE 6217CE 6317CE 6817CE 6917CE 686CE 2206CE 51109CE
6018CE 6218CE 6318CE 6818CE 6918CE 687CE 2207CE 51110CE
6019CE 6219CE 6319CE 6819CE 6919CE 688CE 2208CE 51111CE
6571CE 6220CE 6320CE 6820CE 6920CE 689CE 2209CE

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Contact Angle: 15°
Aligning: Aligning Bearing
Separated: Unseparated
Rows Number: Single
Load Direction: Radial Bearing
Material: Ceramic
US$ 1/Piece
1 Piece(Min.Order)

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Customized Request

ball bearing

Are there Specific Maintenance Practices to Ensure the Longevity of Ball Bearings?

Maintaining ball bearings is essential to ensure their longevity, reliable performance, and prevent premature failure. Proper maintenance practices can extend the lifespan of ball bearings and the equipment they are used in. Here are specific maintenance practices to consider:

  • Regular Lubrication:

Implement a regular lubrication schedule using the appropriate lubricant for the application. Lubrication reduces friction, prevents wear, and helps dissipate heat. Follow manufacturer guidelines for lubricant type, quantity, and frequency.

  • Clean Environment:

Keep the operating environment clean and free from contaminants. Dust, dirt, and debris can infiltrate bearings and cause damage. Use seals or shields to protect bearings from contaminants, especially in harsh environments.

  • Proper Installation:

Ensure correct installation of bearings using proper tools and techniques. Improper installation can lead to misalignment, uneven load distribution, and premature wear. Follow manufacturer recommendations for installation procedures.

  • Regular Inspections:

Perform routine visual inspections to check for signs of wear, damage, or contamination. Regular inspections can help identify issues early and prevent further damage. Pay attention to noise, vibration, and temperature changes.

  • Temperature Monitoring:

Monitor bearing temperatures during operation using infrared thermometers or sensors. Abnormal temperature increases can indicate inadequate lubrication, misalignment, or other problems.

  • Correct Handling:

Handle bearings with care to prevent damage during storage, transportation, and installation. Avoid dropping or subjecting them to impacts that can affect their internal components.

  • Bearing Removal and Replacement:

Follow proper procedures when removing and replacing bearings. Use appropriate tools and techniques to avoid damage to the bearing or the surrounding components.

  • Alignment Maintenance:

Maintain proper shaft and housing alignment to prevent excessive loads and wear on the bearing. Misalignment can lead to increased stress and premature failure.

  • Training and Education:

Provide training to operators and maintenance personnel on proper bearing maintenance and handling practices. Educated personnel are more likely to identify issues and perform maintenance correctly.

  • Documented Records:

Keep records of maintenance activities, inspections, lubrication schedules, and any issues encountered. This documentation helps track the bearing’s performance over time and informs future maintenance decisions.

By implementing these maintenance practices, you can ensure the longevity of ball bearings, minimize downtime, reduce operational costs, and maintain the reliability of the equipment they are a part of.

ball bearing

Are there any Industry Standards or Certifications that Ball Bearings should Meet?

Yes, there are several industry standards and certifications that ball bearings should meet to ensure their quality, performance, and reliability. These standards help manufacturers, engineers, and customers assess the suitability of bearings for specific applications. Some of the key standards and certifications for ball bearings include:

  • ISO Standards:

The International Organization for Standardization (ISO) has developed a series of standards related to ball bearings. ISO 15 defines dimensions, boundary dimensions, and tolerances for radial bearings. ISO 281 specifies dynamic load ratings and calculation methods for bearings’ life calculations.

  • ABEC (Annular Bearing Engineering Committee) Ratings:

ABEC ratings are commonly used in North America to indicate the precision and performance of ball bearings. Ratings range from ABEC 1 (lowest precision) to ABEC 9 (highest precision). However, it’s important to note that ABEC ratings focus primarily on dimensional tolerances and do not encompass all aspects of bearing quality.

  • DIN Standards:

The German Institute for Standardization (Deutsches Institut für Normung, DIN) has published various standards related to ball bearings. DIN 625 covers dimensions for deep groove ball bearings, while DIN 616 provides guidelines for precision angular contact ball bearings.

  • JIS (Japanese Industrial Standards):

JIS standards are used in Japan and internationally to define the characteristics and dimensions of various products, including ball bearings. JIS B 1512 outlines the classification and dimensions of rolling bearings.

  • ASTM (American Society for Testing and Materials) Standards:

ASTM has standards that cover various aspects of bearing testing, performance, and materials. ASTM F2215, for instance, specifies the requirements for ball bearings used in surgical implants.

  • CE Marking:

CE marking indicates that a product complies with European Union health, safety, and environmental requirements. It may be required for bearings used in machinery intended to be sold within the EU market.

  • Industry-Specific Standards:

Various industries, such as aerospace, automotive, medical, and nuclear, have specific standards or certifications that bearings must meet to ensure safety, reliability, and compliance with industry-specific requirements.

  • Quality Management Systems:

Manufacturers that adhere to quality management systems, such as ISO 9001, demonstrate their commitment to consistent product quality and customer satisfaction. Certification to these systems indicates that the manufacturing process follows established protocols and best practices.

When selecting ball bearings, it’s important to consider the relevant standards and certifications that align with the application’s requirements. This ensures that the bearings meet recognized quality and performance criteria, ultimately contributing to reliable and efficient operation.

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 best Ceramic Ball Bearing Miniature Bearing 608zz 693zz 625zz Roller Bearing   bearing blockChina best Ceramic Ball Bearing Miniature Bearing 608zz 693zz 625zz Roller Bearing   bearing block
editor by CX 2024-05-17