Product Description

Ball Bearing Angular Contact Ball Bearing 7204 7205 Stainless Steel Bearings

Quick Details

Structure: Angular Contact Type: Ball, Ball Brand Name: Angular Contact Ball Bearing
Bore Size: 70 – 240 mm Outside Diameter: 150 – 360 mm    
Precision Rating: P0,P6,P5, P0 P4 P6 Seals Type: open, OPEN Number of Row: Single Row, Single Row
Place of Origin: China (Mainland) cage material: brass Vibration: V1,V2,V3,V4
Quanlity: high speed, high precision Sample: Available Certificate: ISO
Cage: Steel, Brass, Nylon

Type of angular contact ball bearings:
a=15 °7000C
a=25 °7000AC
a=40 °7000B
1) Single row angular contact ball bearing
2) Double row angular contact ball bearing
3) Four-point angular contact ball bearing
 
Advantages of Angular Contact Ball Bearing:
1.Ultra clean steel to extend bearing life by up to 80%
2.Advanced grade technology
3.Quiet and smooth operation even at high speed
4.Super finished raceways
5.Offer products in 15,25 and 40 degree angles
6.Available in arrange of Polyamide, steel and brass cage assembles
 
Our Advantages:
1. More than 10 years bearing products exporting experiences.
2. OEM order and non-standard bearing order can be accepted.
3. Many sizes of bearing are available. Large quantity bearing can be provided.
4. To respect customers, you can choose the loading port.
5. A certain number of free sample can be provide to support our customer’s after-sale services and warranty.

Specifications:
CZPT Angular Contact Ball Bearing
1.High Speed
2.High Precision
3.Long Life
4.Higher Radial and Axial Loads

Packaging & Delivery:
Packaging Detail:Standard packaging carton packaging OEM service
Delivery Detail:5-15days

Part of the bearing specification :
 

designation Dimensions
d (mm) D (mm) B (mm)
7206 BEGBP * 30 62 16
7206 BECBM * 30 62 16
7306 BEP 30 72 19
7306 BEY 30 72 19
7306 BECBY 30 72 19
7306 BEGBY 30 72 19
7306 BECBP * 30 72 19
7306 BEGAP * 30 72 19
7306 BEGBP * 30 72 19
7306 BECBM * 30 72 19
7306 BEGAM * 30 72 19
7306 BEGBM * 30 72 19
7406 BM 30 90 23
7406 BCBM 30 90 23
7207 BEP 35 72 17
7207 BEY 35 72 17
7207 BECBY 35 72 17
7207 BEGAY 35 72 17
7207 BEGBY 35 72 17
7207 BECBP * 35 72 17
7207 BEGAP * 35 72 17
7207 BEGBP * 35 72 17
7207 BECBM * 35 72 17
7207 BEGAM * 35 72 17
7307 BEP 35 80 21
7307 BEY 35 80 21
7307 BECBY 35 80 21
7307 BECBP * 35 80 21
7307 BEGAP * 35 80 21
7307 BEGBP * 35 80 21
7307 BECBM * 35 80 21
7407 BM 35 100 25
7407 BCBM 35 100 25
7208 BEP 40 80 18
7208 BEM 40 80 18
7208 BECBJ 40 80 18
7208 BEY 40 80 18
7208 BECBY 40 80 18
7208 BEGAY 40 80 18
7208 BEGBY 40 80 18
7208 BECBP * 40 80 18
7208 BEGAP * 40 80 18
7208 BECBM * 40 80 18
7208 BEGAM * 40 80 18
7308 BEP 40 90 23
7308 BECBJ 40 90 23
7308 BEY 40 90 23
7308 BECBY 40 90 23
7308 BECCY 40 90 23
7308 BEGBY 40 90 23
7308 BEGAF 40 90 23
7308 BECBP * 40 90 23
7308 BECAP * 40 90 23
7308 BEGAP * 40 90 23
7308 BEGBP * 40 90 23
7308 BECBPH * 40 90 23
7308 BECBM * 40 90 23
7308 BEGAM * 40 90 23
7308 BEGBM * 40 90 23
7408 BM 40 110 27
7408 BCBM 40 110 27
7408 BGBM 40 110 27
7209 BEP 45 85 19
7209 BECBJ 45 85 19
7209 BEY 45 85 19
7209 BECBY 45 85 19
7209 BEGAY 45 85 19
7209 BEGBY 45 85 19
7209 BECBP * 45 85 19
7209 BEGAP * 45 85 19
7209 BECBM * 45 85 19
7309 BEP 45 100 25
7309 BECBJ 45 100 25
7309 BEY 45 100 25
7309 BECBY 45 100 25
7309 BEGBY 45 100 25
7309 BECBP * 45 100 25
7309 BECAP * 45 100 25
7309 BEGAP * 45 100 25
7309 BEGBP * 45 100 25
7309 BECBPH * 45 100 25
7309 BECBM * 45 100 25
7409 BCBM 45 120 29
7409 BGBM 45 120 29
7409 BGM 45 120 29
7210 BEP 50 90 20
7210 BECBJ 50 90 20
7210 BEY 50 90 20
7210 BECBY 50 90 20

 

Bearing No. Boundary Dimensions(mm) Basic Load Ratings(N) Limiting Speeds (RPM) Mass(kg)
d D B r min r1 min Cr C0r Grease Oil approx
7901A5 12 24 6 0.3 0.15 3 200 1 770 38 000 53 000 0.011
7901C 24 6 0.3 0.15 3 350 1 860 45 000 63 000 0.011
7001A 28 8 0.3 0.15 5 800 2 980 28 000 38 000 0.571
7001C 28 8 0.3 0.15 5 800 2 900 40 000 56 000 0.571
7201A 32 10 0.6 0.3 8 000 4 050 26 000 34 000 0.037
7201B 32 10 0.6 0.3 7 450 3 750 18 000 26 000 0.038
7201C 32 10 0.6 0.3 7 900 3 850 36 000 50 000 0.041
7301A 37 12 1 0.6 9 450 4 500 18 000 24 000 0.06
7301B 37 12 1 0.6 8 850 4 200 16 000 22 000 0.062
 

7000C 7006C 7012C 7018C 7571CDB 7200CDF 7203A5DP QJ206 7210AW
7000CDB 7006CDB 7012CDB 7018CDB 7571CDF 7200CDT 7203B 7207CDB 7210A5
7000CDF 7006CDF 7012CDF 7018CDF 7571CDT 7200AW 7203BDB 7207CDF 7210A5DB
7000CDT 7006CDT 7012CDT 7018CDT 7571AW 7200A5 7203BDF 7207CDT 7210A5DF
7000AW 7006AW 7012AW 7018AW 7571ADB 7200A5DB 7203BDT 7207AW 7210A5DT
7000A5DB 7006A5DB 7012A5DB 7018A5DB 7571A5DF 7200A5DF 5203 7207A5 7210B
7000A5DF 7006A5DF 7012A5DF 7018A5DF 7571A5DF 7500A5DT 7204C 7207A5DB 7210BDB
7000A5DT 7005A5DT 7012A5DT 7018A5DT 7571A5DT 7200B 7204CDB 7207A5DF 7210BDF
7001C 7007C 7013C 7019C 7026CDB 7200BDB 7204CDF 7207A5DT 7210BDT
7001CDB 7007CDB 7013CDB 7019CDB 7026CDF 7200BDF 7204CDT 7207BDB 5210
7001CDF 7007CDF 7013CDF 7019CDF 7026CDT 7200BDT 7204AW 7207B QJ210
7001CDT 7007CDT 7013CDT 7019CDT 7026AW 5200 7204A5 7207BDF 7211C
7001AW 7007AW 7013AW 7019AW 7026ADB 7201C 7204A5DB 7207BDT 7211CDB
7001A5DB 7007A5DB 7013A5DB 7019A5DB 7026A5DF 7201CDB 7205A5DF 5207 7211CDF
7001A5DF 7007A5DF 7013A5DF 7019A5DF 7026A5DT 7201CDF 7204A5DT QJ207 7211CDT
7001A5DT 7007A5DT 7013A5DT 7019A5DT 7571CDB 7201CDT 7204B 7208C 7211AW
7002C 7008C 7014C 7571C 7571CDF 7201AW 7204BDB 7208CDB 7211A5
7002CDB 7008ACDB 7014CDB 7571CDB 7571CDT 7201A5 7204BDF 7208CDF 7211A5DB
7002CDF 7008CDF 7014CDF 7571CDF 7571AW 7201A5DB 7204BDT 7208CDT 7211A5DF
7002CDT 7008CDT 7014CDT 7571CDT 7571ADB 7201A5DF 5204 7208AW 7211A5DT
7002AW 7008AW 7014AW 7571AW 7030CDB 7201A5DT 7205C 7208A5 7211B
7002A5DB 7008A5DB 7014A5DB 7571A5DB 7030CDF 7201B 7205CDB 7208A5DB 7211BDB
02A5DF 7008A5DF 7014A5DF 7571A5DF 7030CDT 7201BDB 7205CDF 7208A5DF 7211BDF
7002A5DT 7008A5DT 7014A5DT 7571A5DT 7030AW 7201BDF 7205CDT 7208A5DT 7211BDT
7003C 7009C 7015C 7571C 7030ADB 7201BDT 7205AW 7208B 5211
7003CDB 7009CDB 7015CDB 7571CDB 7032CDB 5201 7205A5DF 7208BDB 7212C
7003CDF 7009CDF 7015CDF 7571CDF 7032CDF 7202C 7205A5DB 7208BDF 7212CDB
7003CDT 7009CDT 7015CDT 7571CDT 7032CDT 7202CDB 7205A5DF 7208BDT 7212CDF
7003AW 7009AW 7015AW 7571AW 7032AW 7202CDF 7205A5DT 5208 7212CDT
7003A5DB 7009A5DB 7015A5DB 7571A5DB 7032ADB 7202CDT 7205B QJ208 7212AW
7003A5DF 7009A5DF 7015A5DF 7571A5DF 7034CDB 7202AW 7205BDB 7209C 7212A5
7003A5DT 7009A5DT 7015A5DT 7571A5DT 7034CDF 7202A5 7205BDF 7209CDB 7212A5DB
7004C 7571C 7016C 7571C 7034CDT 7205A5DB 7205BDT 7209CDF 7212A5DF
7004CDB 7571CDB 7016CDB 7571CDB 7034AW 7205A5DF 5202 7209CDT 7212A5DT
7004CDF 7571CDF 7016CDF 7571CDF 7034ADB 7202A5DT 7206C 7209AW 7212B
7004CDT 7571CDT 7016CDT 7571CDT 7036CDB 7202B 7206CDB 7209A5 7212BDB
7004AW 7571AW 7016AW 7571AW 7036CDF 7202BDB 7206CDF 7209A5DB 7212BDF
7004A5DB 7571A5DB 7016A5DB 7571A5DB 7036CDT 7202BDF 7206CDT 7209A5DF 7212BDT
7004A5DF 7571A5DF 7016A5DF 7571A5DF 7036AW 7202BDT 7206AW 7209A5DT 5212
7005A5DT 7571A5DT 7016A5DT 7571A5DT 7038CDB 5202 7206A5 7209B QJ212
7005C 7011C 7017C 7571C 7038CDF 7203C 7206A5DB 7209BDF 7213C
7005CDB 7011CDB 7017CDB 7571CDB 7038CDT 7203CDB 7206A5DF 7209BDT 7213CDB
7005CDF 7011CDF 7017CDF 7571CDF 7038AW 7203CDF 7206A5DT 5209 7213CDF
7005CDT 7011CDT 7017CDT 7571CDT 7040CDB 7203CDT 7206B QJ209 7213CDT
7005AW 7011AW 7017AW 7571AW 7040CDF 7203AW 7206BDB 7210C 7213AW
7005A5DB 7011A5DB 7017A5DB 7571A5DB 7040CDT 7203A5 7206BDF 7210CDB 7213A5
7005A5DF 7011A5DF 7017A5DF 7571A5DF 7200C 7203A5DB 7206BDT 7210CDF 7213A5DB
7005A5DT 7011A5DT 7017A5DT 7571A5DT 7200CDB

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Rolling Element: Single Row
Structure: Angular Contact
Material: Bearing Steel
Load Direction: Radial Spherical Plain Bearing
Add Lubricant: Self-lubricating
Outer Structure: Whole Outer Ring
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

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

How do Ball Bearings Differ from Other Types of Bearings like Roller Bearings?

Ball bearings and roller bearings are two common types of rolling-element bearings, each with distinct designs and characteristics. Here’s a comparison of ball bearings and roller bearings:

  • Design:

Ball Bearings: Ball bearings use spherical balls to separate and reduce friction between the bearing’s inner and outer rings. The balls enable rolling motion and smooth contact, minimizing friction.

Roller Bearings: Roller bearings, as the name suggests, use cylindrical or tapered rollers instead of balls. These rollers have larger contact areas, distributing loads over a broader surface.

  • Friction and Efficiency:

Ball Bearings: Due to the point contact between the balls and the rings, ball bearings have lower friction and are more efficient at high speeds.

Roller Bearings: Roller bearings have a larger contact area, resulting in slightly higher friction compared to ball bearings. They are more suitable for heavy-load applications where efficiency is prioritized over high speeds.

  • Load Capacity:

Ball Bearings: Ball bearings excel at handling light to moderate loads in both radial and axial directions. They are commonly used in applications where smooth rotation and low friction are important.

Roller Bearings: Roller bearings have a higher load-carrying capacity than ball bearings. They can support heavier radial and axial loads and are preferred for applications with significant loads or impact forces.

  • Variability:

Ball Bearings: Ball bearings come in various designs, including deep groove, angular contact, and thrust ball bearings, each suitable for different applications.

Roller Bearings: Roller bearings have diverse types, including cylindrical, spherical, tapered, and needle roller bearings, each optimized for specific load and motion requirements.

  • Speed Capability:

Ball Bearings: The reduced friction in ball bearings makes them suitable for high-speed applications, such as electric motors and precision machinery.

Roller Bearings: Roller bearings can handle higher loads but are generally better suited for moderate to low speeds due to slightly higher friction.

  • Applications:

Ball Bearings: Ball bearings are used in applications where smooth motion, low friction, and moderate loads are essential, such as electric fans, bicycles, and some automotive components.

Roller Bearings: Roller bearings find applications in heavy machinery, construction equipment, automotive transmissions, and conveyor systems, where heavier loads and durability are crucial.

In summary, ball bearings and roller bearings differ in their design, friction characteristics, load capacities, speed capabilities, and applications. The choice between them depends on the specific requirements of the machinery and the type of loads and forces involved.

China Professional Ball Bearing Angular Contact Ball Bearing 7200 7201 7202 7203 7204 7205 Stainless Steel Bearings   with Great qualityChina Professional Ball Bearing Angular Contact Ball Bearing 7200 7201 7202 7203 7204 7205 Stainless Steel Bearings   with Great quality
editor by CX 2024-05-07