Product Description
PRODUCT PICTURES
OUR SERVICES
We can provide manufacturing capabilities and services of regular bearings for you, or customized non-standard bearings as you required.
 BEARING:
 — Dimensions
 — Material
 — Tolerance standard
APPEARANCE:
 — Logo (Laser Marking)
 — Package Design
40+ YEARS EXPERIENCEÂ
CONTINUOUS AND STABLE DELIVERY OF PRODUCTS.
With over 40 years experience of the bearing manufacturing, we know how to make good bearings with less cost consistently and efficiently.
We use advanced CNC turning, grinding, and superfinishing machines to ensure high, stable, and accurate machining. All of your goods, from the most economical category, to the highest rated category, will always be manufactured precisely to the standards you require.
OWN HEAT TREATMENTÂ
CONTROALLABLE COST AND QUALITY.
Heat treatment is 1 of the crucial processes to ensure high performance of bearing materials. Compared with other manufacturers, we can produce higher quality bearings at smaller cost, with a more flexible and controllable production schedule, and in a shorter time.Â
We have 6 heat treatment production lines.
Bearings are heated uniformly, with small deformation and little/no oxidized decarburization, which can make them have high hardness, high fatigue resistance, good wear resistance, dimensional stability, and excellent mechanical strength.
Â
OUTSTXIHU (WEST LAKE) DIS. QUALITY
LOW NOISE, LOW FRICTION AND LONG LIFE.
All our products are characterized by low noise, low friction and long life. This is due to our attention to the roundness, waviness and surface roughness of bearing raceway.
Our products fully meets the requirements of national and international standards according to the testing result of roughness, roundness, hardness, vibration noise, vibration velocity.
PACKING
PACKAGING THAT HELPS SELL.
1, Inner package
  Corrosion and Dust Proof PE plastic film / bag packing + Tube packing, or Wrapping tape for larger bearings.
2, Corrugated Individual Box
  Our attractive sales-helpful “3-JOYS” package, or as the design of your package.
3, Outer package
 Corrugated carton + Wooden palletÂ
MODERN WELL-ORGANIZED WAREHOUSE
  · Constant temperature (20°C) and humidity (RH 52%) warehouse
  · Hundreds of models on hand, short delivery time.
Â
HONOR & SYSTEM CERTIFICATES
EXHIBITION
SAMPLES POLICYÂ
 FREE SAMPLES AND SHIPPING
 We are happy to send you free samples of our bearings for field  testing. All transportation costs will be paid by us.
 Please note: Depending on the model and value of samples,  this policy may not apply!
 Please contact our sales staff for details.
TRANSPORTATION
FASTEST DELIVERY TO CUSTOMERS
CUSTOMERS FEEDBACK
PAYMENT TERMSÂ
To facilitate your payment, we offer a variety of options!Â
  Â
Â
FAQ
1, About the lead time.
Â
This depends on several factors, like Is the production schedule tight? Is there a corresponding model in stock, and is there enough of this model in stock? How many pcs of that model would be ordered?
Simply speaking, based on a 20′ GP container load:
If the model your Preferred is | Sufficient stock | Lead Time |
Regular models | YES | Within 7 days |
Regular models | NO | Within 30 days |
Non-regular model | NO | About 50 days |
For accurate estimate, please contact with our sale stuff. Thanks.
2, Minimum order quantity.Â
 Â
Even just ONE piece of bearing is ok for us.
 Â
3, If you don’t know which model is the right choice…
 Â
We would like to give you some advise if you like, according to the real situation and demand of your local market. Our purpose is to help you to get proper and right models for your customers, so that you would make a better sales and income finally.
4, Factory Inspection
We surely would welcome you or your representatives to come to our plants or working offices to take a good look and chat with our hardworking CZPT employees. Ask our sales stuff and she/he will arrange that for you.
OPTIONS OF SPECIFICATION AND STHangZhouRD
Â
Subject | Symbol | Description |
Sealing & Sealing type | Z | Metal shield on 1 side. |
ZZ | Metal shields on both sides. | |
RS | Rubber seal on 1 side. | |
2RS | Rubber seals on both sides. | |
ZNR | Shield on 1 side, snap ring groove in the outer ring, with snap ring on the opposite side of the shield | |
2ZNR | Shield on both sides, snap ring groove in the outer ring, with snap ring | |
ZNBR | Shield on 1 side, snap ring groove in the outer ring, with snap ring on the same side as the shield | |
Vibration Velocity | V | Normal vibration level. Is not indicated as a standard. |
V1 | Lower vibration level than normal. | |
V2 | Lower vibration level than V1. | |
V3 | Lower vibration level than V2. | |
V4 | Lower vibration level than V3. | |
Tolerances | P0(ABEC1) | Bearings in standard tolerance |
P6(ABEC3) | Tighter tolerance than standard bearings | |
P5(ABEC5) | Tolerance tighter than P6 | |
P4(ABEC7) | Tolerance tighter than P5 | |
P2(ABEC9) | Tolerance tighter than P4 | |
Radial internal clearance | C1 | Smaller clearance than C2 |
C2 | Smaller clearance than CN | |
CN(C0) | Clearance than normal | |
C3 | Clearance larger than CN | |
C4 | Clearance larger than C3 | |
C5 | Clearance larger than C4 | |
Snap Ring Groove | N | Snap ring groove in the outer ring |
NR | Snap ring groove in the outer ring, with snap ring | |
N1 | One locating slot in 1 outer ring side face | |
R | Flanged outer ring | |
Other technical modifications | NR | Groove with inserted snap ring in outer ring. |
N | Snap ring groove in the outer ring. | |
SS | Stainless steel. |
Cage Materials | J | Pressed steel cages |
M | Solid brass cage | |
F | Solid cage made from steel or iron | |
Y | Pressed brass cages. | |
T | Laminated phenolic cages. | |
TN | Polyamide cages | |
TH | Glass-fiber reinforced phenolic resin cages. | |
TV | Polyamide cage | |
Cage Designs | P | Window-type cage |
H | Claw-type cage | |
A | Cage guided on the bearing outer ring | |
B | Cage-guided on the bearing inner ring | |
S | Cage with lubricating slots in the guiding surfaces | |
D | Carbonitriding cage | |
W | Welded cage | |
R | Riveted Cage | |
Cage Types | N/A | Claw-type cage |
Ribbon cage | ||
Crown cage | ||
Sunflower cage | ||
Tapered cage |
PRODUCT PARAMETERS
This tech sheet may not contain all or every piece of information you want to know. Please contact our sales staff to obtain or compare the information.
Â
Designation | Boundary Dimension (mm) | Limiting Speed (rpm) | Load Rating (Kn) | Weight | ||||
Designation | Inner Diameter (d) |
Outside Diameter (D) |
Width (B) |
Grease Lubrication | Oil Lubrication | Dynamic Load (cr) |
Static Load (cor) |
Weight (kg) |
6301 | 12 | 17 | 12 | 17000 | 22000 | 9.72 | 5.08 | 0.06 |
6302 | 15 | 42 | 13 | 16000 | 20000 | 11.5 | 5.42 | 0.082 |
6303 | 17 | 47 | 14 | 15000 | 18000 | 13.5 | 6.58 | 0.115 |
6304 | 20 | 52 | 15 | 13000 | 16000 | 15.8 | 7.88 | 0.142 |
6305 | 25 | 62 | 17 | 11000 | 13000 | 20.6 | 11.3 | 0.232 |
6306 | 30 | 72 | 19 | 6600 | 12000 | 26.7 | 15 | 0.346 |
6307 | 35 | 80 | 21 | 8500 | 10000 | 33.4 | 19.3 | 0.457 |
6308 | 40 | 90 | 23 | 7000 | 8500 | 40.8 | 24 | 0.639 |
6309 | 45 | 100 | 25 | 6300 | 7500 | 52.8 | 31.8 | 0.837 |
6310 | 50 | 110 | 27 | 6000 | 7000 | 61.8 | 38 | 1.082 |
6311 | 55 | 120 | 29 | 5600 | 6700 | 71.5 | 44.8 | 1.367 |
6312 | 60 | 130 | 31 | 5000 | 6000 | 81.8 | 51.8 | 1.71 |
6313 | 65 | 140 | 33 | 4500 | 5300 | 93.8 | 60.5 | 2.1 |
6313 | 70 | 150 | 35 | 4300 | 5000 | 105 | 68 | 2.55 |
6315 | 75 | 160 | 37 | 4000 | 4800 | 113 | 76.8 | 3.05 |
6316 | 80 | 170 | 39 | 3800 | 4500 | 123 | 86.5 | 3.61 |
6317 | 85 | 180 | 41 | 3600 | 4300 | 132 | 96.5 | 4.284 |
6318 | 90 | 190 | 43 | 3400 | 4000 | 145 | 108 | 4.97 |
6319 | 95 | 200 | 45 | 3200 | 3800 | 157 | 122 | 5.74 |
6320 | 100 | 215 | 47 | 2800 | 3600 | 173 | 140 | 7.09 |
6321 | 105 | 225 | 49 | 2600 | 3200 | 184 | 153 | 8.05 |
6322 | 110 | 240 | 50 | 2400 | 3000 | 205 | 178 | 9.53 |
6324 | 120 | 260 | 55 | 2200 | 2800 | 228 | 208 | 12.2 |
6326 | 130 | 280 | 58 | 2000 | 2600 | 253 | 242 | 14.77 |
6328 | 140 | 300 | 62 | 1900 | 2400 | 275 | 272 | 18.33 |
6330 | 150 | 320 | 65 | 1700 | 2200 | 288 | 295 | 21.87 |
6332 | 160 | 340 | 68 | 1600 | 2000 | 313 | 340 | 26.43 |
 /* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
Material Option 2: | Stainless Steel |
---|---|
MOQ: | One Pallet |
Seals Options: | Z / 2z, Rz / 2rz, RS / 2RS, Rsz / Rzz, Zn / Znr |
Samples: |
US$ 0/Piece
1 Piece(Min.Order) | Order Sample |
---|
Customization: |
Available
| Customized Request |
---|
.shipping-cost-tm .tm-status-off{background: none;padding:0;color: #1470cc}
Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
---|
Payment Method: |
|
---|---|
Initial Payment Full Payment |
Currency: | US$ |
---|
Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
---|
Can you provide examples of scenarios where high-speed rotation benefits from deep groove ball bearings?
High-speed rotation often benefits from the use of deep groove ball bearings due to their specific design features and capabilities. Here are examples of scenarios where deep groove ball bearings are advantageous for high-speed rotation:
- Electric Motors:
- Machine Tools:
- Spindles:
- Turbomachinery:
- Automotive Wheels:
- High-Speed Fans and Blowers:
- Rotating Machinery in Aerospace:
Deep groove ball bearings are commonly used in electric motors that require high-speed rotation, such as those found in industrial machinery, automotive applications, and household appliances. The low friction and smooth operation of deep groove ball bearings allow electric motors to achieve efficient and reliable performance at high rotational speeds.
In machine tools, such as milling machines and lathes, high-speed rotation is often necessary to achieve precise cutting and shaping operations. Deep groove ball bearings enable smooth and precise rotational motion, ensuring the accuracy and efficiency of machining processes at high speeds.
Spindles in various applications, including woodworking machines, CNC routers, and grinding machines, require high-speed rotation for precision operations. Deep groove ball bearings with their ability to handle both radial and axial loads and their low friction characteristics provide the necessary support and stability for high-speed spindle rotation.
In turbomachinery applications such as turbochargers, centrifugal compressors, and gas turbines, high-speed rotation is essential for efficient energy conversion and power generation. Deep groove ball bearings, with their ability to accommodate high speeds and handle radial loads, are used to support the rotating components of such turbomachinery, ensuring reliable and continuous operation.
Deep groove ball bearings are commonly used in automotive wheels, where high-speed rotation is required. They support the radial and axial loads encountered during vehicle operation and allow smooth rotation at highway speeds. Deep groove ball bearings contribute to the overall performance, safety, and durability of automotive wheels.
In applications such as industrial fans, HVAC systems, and turbo blowers, high-speed rotation is necessary to generate the desired airflow or pressure. Deep groove ball bearings are employed to support the fan or blower rotor, enabling smooth and efficient rotation at elevated speeds while minimizing energy losses.
In aerospace applications, various rotating components, including jet engines, helicopter rotors, and satellite mechanisms, require high-speed rotation. Deep groove ball bearings, designed to withstand high speeds and provide reliable performance, are used in these aerospace systems to ensure smooth operation and support critical functions.
In summary, deep groove ball bearings are beneficial for high-speed rotation in a wide range of scenarios. They find application in electric motors, machine tools, spindles, turbomachinery, automotive wheels, high-speed fans and blowers, as well as rotating machinery in the aerospace industry. The low friction, smooth operation, and ability to handle radial and axial loads make deep groove ball bearings suitable for supporting high-speed rotation while ensuring performance, precision, and reliability.
What advantages do deep groove ball bearings offer compared to other types of bearings?
Deep groove ball bearings offer several advantages compared to other types of bearings, making them a popular choice for many applications. Here’s a detailed explanation of the advantages of deep groove ball bearings:
- Versatility:
- High-Speed Performance:
- Low Friction and Energy Efficiency:
- Quiet and Smooth Operation:
- Simple and Cost-Effective Installation:
- Wide Availability and Standardization:
Deep groove ball bearings are highly versatile and can accommodate both radial and axial loads. This versatility allows them to be used in a wide range of applications, eliminating the need for multiple specialized bearings. Their ability to handle different load types simplifies inventory management and reduces the complexity of bearing selection.
Deep groove ball bearings are designed for high-speed operation. The smooth, low-friction rolling contact between the steel balls and the raceway grooves enables them to rotate at high speeds with minimal heat generation. This makes them suitable for applications that require fast rotational speeds, such as electric motors, turbines, and machine tool spindles.
Deep groove ball bearings offer low-friction operation due to the rolling contact between the balls and the raceway grooves. This results in reduced energy losses due to friction, making the bearings more energy-efficient. The low-friction characteristics contribute to improved system efficiency, reduced power consumption, and longer operating life.
Deep groove ball bearings provide quiet and smooth operation. The rolling contact between the balls and the raceway grooves produces less noise and vibration compared to other types of bearings. This makes deep groove ball bearings suitable for applications that require low-noise operation, such as household appliances, office equipment, and precision machinery.
Deep groove ball bearings are relatively easy to install and require minimal additional components. They can be easily mounted on shafts or in housing units using standard bearing mounting methods. This simplicity and ease of installation contribute to cost savings in terms of labor and equipment required for installation.
Deep groove ball bearings are widely available and come in standardized sizes and configurations. This standardization simplifies the replacement process, as bearings with the same specifications can be easily sourced from various manufacturers. The wide availability and standardization of deep groove ball bearings contribute to shorter lead times, reduced downtime, and increased equipment availability.
In summary, deep groove ball bearings offer advantages such as versatility, high-speed performance, low friction, energy efficiency, quiet operation, simplicity of installation, and wide availability. These advantages make deep groove ball bearings a preferred choice in various applications across industries.
Can you explain the role of shields and seals in preventing contamination of deep groove ball bearings?
Shields and seals play a critical role in preventing contamination of deep groove ball bearings. These protective components act as barriers, preventing the ingress of contaminants such as dust, dirt, moisture, and other harmful substances into the bearing’s internal components. Here’s a detailed explanation of the role of shields and seals in preventing contamination of deep groove ball bearings:
- Shield:
- Seal:
- Preventing Contamination:
- Selection and Maintenance:
A shield is a metallic or non-metallic disc that is typically made of steel, synthetic rubber, or a combination of materials. It is designed to cover a portion of the bearing’s outer ring, leaving a small gap between the shield and the inner ring. The primary function of a shield is to provide a physical barrier that blocks the entry of contaminants into the bearing. Shields are effective in preventing larger particles, such as dirt and debris, from reaching the bearing’s internal components while allowing grease or lubricant to flow within the bearing.
A seal is a flexible component typically made of rubber or synthetic materials. It is designed to completely enclose the bearing and create a tight seal between the outer and inner rings. Seals create a physical barrier that effectively blocks contaminants from entering the bearing. Unlike shields, seals provide a higher level of protection against fine particles, moisture, and other contaminants by forming a more complete seal around the bearing. This helps to maintain the integrity of the lubricant and reduce the risk of premature wear or damage to the bearing’s internal components.
Contamination is a major cause of premature bearing failure. When contaminants such as dirt, dust, or moisture enter the bearing, they can interfere with the lubrication, cause abrasive wear, or induce corrosion. This can lead to increased friction, heat generation, and accelerated wear, ultimately compromising the bearing’s performance and lifespan. Shields and seals act as protective barriers that prevent these contaminants from reaching the critical internal components of the bearing, preserving the lubricant’s integrity and maintaining a clean operating environment for the rolling elements and raceways.
Proper selection and maintenance of shields and seals are essential for their effectiveness in preventing contamination. It is important to choose shields or seals that are suitable for the specific application and operating conditions. Factors such as the type and size of contaminants, temperature variations, and rotational speeds should be considered when selecting the appropriate shielding or sealing solution. Regular inspection and maintenance of shields and seals are also important to ensure they remain in good condition. Damaged or worn shields or seals should be promptly replaced to maintain the bearing’s protection against contamination.
In conclusion, shields and seals play a crucial role in preventing contamination of deep groove ball bearings. By acting as protective barriers, they safeguard the bearing’s internal components from the ingress of contaminants, preserving the lubrication, reducing wear, and extending the bearing’s service life. Proper selection, installation, and maintenance of shields and seals are essential to ensure their effectiveness in maintaining a clean and contaminant-free environment within the bearing.
editor by CX 2024-04-03