Product Description

Product Parameters

Model Category RTS/Custom Size(mm)
Precision grade Seal Type Number of Row Application
6318 Deep Groove Ball Bearing RTS 90*190*43mm P0 P2 P4 P5 P6 OPEN ZZ 2RS RS Single Machinery
Material Material of Balls Lubrication Vibration Clearance Hardness Deliery Time Packing
Chrome Steel GCr15 Chrome Steel GCr15 Grease or Oil Standard Vibration
Standard Clearance
HRC60-65 <=50000,3
Single Box+Cartons+Pallet

Product Description

Detailed Photos

Our business:Produce and customize various bearing brands. (Packaging and logo can be customized. All copyright belongs to the customer. We promise not to disclose any information.)

Product Series

Bearing type Boundary  Dimensions( mm ) Speed  Rating(ipm)  Load Rating(kn) Weight(kg)
d D B Grease lubrication Oil lubrication Dynamic Cr Static Cor
6300 10 35 11 18000 24000 7.65 3.48 0.053
6301 12 37 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 6300 7500 62 38 1.07
6311 55 120 29 5600 6700 71.5 45 1.39
6312 60 130 31 5300 6300 82 48.5 1.71
6313 65 140 33 4800 5600 92.5 59.5 2.1
6314 70 150 35 4500 5300 104 68 2.55
6315 75 160 37 4300 5000 113 116 3.1
6316 80 170 39 3800 4500 119 86.5 3.64
6317 85 180 41 3800 4500 102 96.5 4.33
6318 90 190 43 3400 4000 144 108 4.97
6319 95 200 45 3200 3800 152 122 5.65
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
6334 170 360 72 1500 1900 335 378 31.14
6336 180 380 75 1400 1800 358 396 35.23
6338 190 400 78 1300 1700 379 438 39.45
6340 200 420 80 1200 1600 391 496 46.89
6344 220 460 88 1100 1500 410 520 52.45
6348 240 500 95 1000 1400 442 585 59.46
6352 260 540 102 900 1300 507 710 64.23
6356 280 580 108 800 1200 572 850 73.67
6360 300 620 109 700 1100 590 920 85.34

Type Of Deep Groove Ball Bearing
1. Deep Groove Ball Bearing With Dust Cover
Generally Used In The Single Lubrication Is More Difficult, The Placement Of Lubricating Oil And Check The Lubrication Is Not Convenient Conditions, Usually Injected Into The Bearing Rust, Lubrication Dual-Purpose Lithium Grease Is 1/4 To 1/3 Of The Bearing Internal Space.

2. Deep Groove Ball Bearing With Sealing Ring
Its Performance, Grease Filling, Use And Bearing With Dust Cover Are Basically The Same, The Difference Is That There Is A Large Gap Between The Dust Cover And The Inner Ring, And The Sealing Lip And The Inner Ring Of The Non-Contact Seal Ring Is Small, There Is No Gap Between The Sealing Lip And The Inner Ring Of The Contact Seal Ring Bearing, The Sealing Effect Is Good, But The Friction Coefficient Has Increased.

3, There Are Stop Groove And Deep Groove Ball Bearings With Stop Ring
In Addition To The Function Of Bearing Radial Load, The Deep Groove Ball Bearing With The Stop Ring Can Also Limit The Axial Displacement Of The Bearing, Simplify The Structure Of The Bearing Seat And Reduce The Bearing Size. Generally Used In Cars, Tractors And Other Axial Load Is Not Large Working Parts.

4. Deep Groove Ball Bearing With Ball Filling Gap
There Are Notches In The Inner And Outer Rings On One Side, From Which More Balls Can Be Loaded, Increasing Its Radial Load Capacity. However, Due To The Small Axial Load Capacity, It Can Not Run At High Speed. If There Is A Large Axial Load, It Needs To Be Used With The General Deep Groove Ball Bearing.

Packaging & Shipping

Company Profile




Q:Are you trading company or manufacturer?
–We are the company dealing in trading business and manufacturing business.

Q:What’s the MOQ?
–MOQ is 2pcs for standardized products; 300pcs for customized products. There is no MOQ for sample orders.

Q:How long is the lead time?
–The lead time for sample orders is 1-3 days, for bulk orders is generally in 3-15 days.The delivery time is generally in 2 days after payment. It’s according to the order amount.

Q:Do you offer free samples?
–If you place an order, we can return part of sample fee even all of fee to you. It also depends on the quantity of order and the type of sample. And you just need to pay freight.

Q: Could you customized for me?
–Sure,we can supply OEM service as per your drawing or samples.

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Material: Chrome Steel Gcr15
Bearing Type: 6318
Category: Deep Groove Ball Bearing
Seal Type: Open Zz 2RS RS
Number of Row: Single
Weight: 4.97kg
US$ 0/Piece
1 Piece(Min.Order)

Request Sample



Customized Request

ball bearing

Can you Provide Examples of Industries where Ball Bearings are Crucial Components?

Ball bearings are essential components in a wide range of industries where smooth motion, load support, and precision are vital. Here are some examples of industries where ball bearings play a crucial role:

  • Automotive Industry:

Ball bearings are used in various automotive applications, including wheel hubs, transmissions, engines, steering systems, and suspension components. They provide reliable rotation and support in both passenger vehicles and commercial vehicles.

  • Aerospace Industry:

In the aerospace sector, ball bearings are found in aircraft engines, landing gear systems, control surfaces, and avionics equipment. Their ability to handle high speeds and precision is vital for aviation safety.

  • Industrial Machinery:

Ball bearings are integral to a wide range of industrial machinery, including pumps, compressors, conveyors, machine tools, printing presses, and textile machinery. They facilitate smooth operation and load distribution in these diverse applications.

  • Medical Equipment:

In medical devices and equipment, ball bearings are used in surgical instruments, imaging equipment, dental tools, and laboratory machinery. Their precision and smooth movement are crucial for accurate diagnostics and treatments.

  • Robotics and Automation:

Ball bearings are key components in robotic arms, automation systems, and manufacturing machinery. They enable precise movement, high-speed operation, and reliable performance in automated processes.

  • Renewable Energy:

Wind turbines and solar tracking systems utilize ball bearings to enable efficient rotation and tracking of the wind blades and solar panels. Ball bearings withstand the dynamic loads and environmental conditions in renewable energy applications.

  • Marine and Shipbuilding:

Ball bearings are used in marine applications such as ship propulsion systems, steering mechanisms, and marine pumps. They withstand the corrosive environment and provide reliable performance in maritime operations.

  • Heavy Equipment and Construction:

In construction machinery like excavators, bulldozers, and cranes, ball bearings support the movement of heavy loads and enable efficient operation in demanding environments.

  • Electronics and Consumer Appliances:

Consumer electronics like electric motors, computer hard drives, and household appliances rely on ball bearings for smooth motion and reliable operation.

  • Oil and Gas Industry:

In oil and gas exploration and extraction equipment, ball bearings are used in drilling rigs, pumps, and processing machinery. They handle the high loads and harsh conditions of this industry.

These examples demonstrate how ball bearings are indispensable components in various industries, contributing to the efficiency, reliability, and functionality of diverse mechanical systems and equipment.

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 Factors should be Considered when Selecting a Ball Bearing for a Particular Application?

Selecting the right ball bearing for a specific application involves careful consideration of various factors to ensure optimal performance, longevity, and reliability. Here are the key factors that should be taken into account:

  • Load Type and Magnitude:

Determine the type of load (radial, axial, or combined) and the magnitude of the load that the bearing will need to support. Choose a bearing with the appropriate load-carrying capacity to ensure reliable operation.

  • Speed and Operating Conditions:

Consider the rotational speed of the application and the operating conditions, such as temperature, humidity, and exposure to contaminants. Different bearing types and materials are suited for varying speeds and environments.

  • Accuracy and Precision:

For applications requiring high accuracy and precision, such as machine tool spindles or optical instruments, choose high-precision bearings that can maintain tight tolerances and minimize runout.

  • Space Limitations:

If the application has limited space, choose miniature or compact ball bearings that can fit within the available dimensions without compromising performance.

  • Thrust and Radial Loads:

Determine whether the application requires predominantly thrust or radial load support. Choose the appropriate type of ball bearing (thrust, radial, or angular contact) based on the primary load direction.

  • Alignment and Misalignment:

If the application experiences misalignment between the shaft and housing, consider self-aligning ball bearings that can accommodate angular misalignment.

  • Mounting and Installation:

Consider the ease of mounting and dismounting the bearing. Some applications may benefit from features like flanges or snap rings for secure installation.

  • Lubrication and Maintenance:

Choose a bearing with appropriate lubrication options based on the application’s speed and temperature range. Consider whether seals or shields are necessary to protect the bearing from contaminants.

  • Environmental Conditions:

Factor in the operating environment, including exposure to corrosive substances, chemicals, water, or dust. Choose materials and coatings that can withstand the specific environmental challenges.

  • Bearing Material:

Select a bearing material that suits the application’s requirements. Common materials include stainless steel for corrosion resistance and high-carbon chrome steel for general applications.

  • Bearing Arrangement:

Consider whether a single-row, double-row, or multiple bearings in a specific arrangement are needed to accommodate the loads and moments present in the application.

By carefully evaluating these factors, engineers and designers can choose the most suitable ball bearing that aligns with the specific demands of the application, ensuring optimal performance, durability, and overall operational efficiency.

China OEM 6318 Hot Product Deep Groove Ball Bearing 6300 Series Bearings   carrier bearingChina OEM 6318 Hot Product Deep Groove Ball Bearing 6300 Series Bearings   carrier bearing
editor by CX 2024-04-16

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