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 | Â | Â |
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
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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
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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 :
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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 |
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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 Â |
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 |
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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.
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.
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.
editor by CX 2024-05-07