Roller Bearing
Why choose us?
Your Leading Roller Bearing Supplier
Advanced Equipment
It has CNC machine tools, CNC grinders, punching machines, super-finishing machines and multiple automatic production lines.
Custom Service
We can customize customer branding. If the customer only needs to print the brand on the bearing, there is no MOQ and extra cost.
Rich Experience
Businesses all over the world, with an annual output value of 50 million.
Global Shipping
We can arrange FedEx or DHL shipping for small orders. We can arrange sea shipping for large orders, and you need to do import customs clearance.
What is Roller Bearing？
A roller bearing is a mechanical device that uses rollers to support a load and reduce friction. They are a type of rotary bearing that are often used in machinery and equipment, such as automobiles, industrial machinery, and household appliances.
advantage of Roller Bearing
Durability
Roller bearings are known for their durability.
01
Low friction
Roller bearings minimize friction.
02
High load-carrying capacity
Roller bearings can handle heavier loads than ball bearings.
03
Versatile
Roller bearings can contain multiple rows of rollers, which can improve radial load capacity.
04
Can support different types of loads
Different roller shapes can support both radial and axial loads.
05
Types of Roller Bearing
Cylindrical roller bearings
These bearings are ideal for high speeds and high radial loads.
Spherical roller bearings
These self-aligning bearings use two sets of spherical bearings.
Gear bearings
These bearings are made up of smaller gears that revolve around the center of the bearing.
Tapered roller bearings
These bearings are designed to withstand both axial and radial loads.
Material of Roller Bearing
Chrome steel
A common material for roller bearings, chrome steel is made of carbon and chromium. It's often used to make the load-carrying parts of bearings, such as the balls, rollers, and inner and outer rings. Chrome steel is hard and resistant to wear, but it's not as resistant to corrosion as other materials. To prevent corrosion, chrome steel bearings should be coated with oil or a rust inhibitor.
Stainless steel
440C stainless steel is a common material for roller bearings, especially in high-temperature conditions.
M50 tool steel
M50 tool steel is often used for high-speed and high-temperature bearings in aircraft.
Ceramic
Ceramic bearings are often used for speed skating. Ceramic balls are made of industrial ceramic, such as silicon nitride, and are more durable and less likely to rust than steel.
Borosilicate glass
Borosilicate glass is more expensive than soda-lime glass, but it's more resistant to chemicals, heat, and temperature changes. It's often used in applications that involve strong acids.
Fine ceramics
Silicon nitride (Si3N4) and silicon carbonate (SiC) are fine ceramics that can be used in high-temperature environments.
Application of Roller Bearing
Machining
Different components, such as the inner and outer rings, rollers, and cages, are machined using different processes. For example, smaller bearing rings are cut from bars or tubes and then machined on multi-spindle lathes.
Heat treatment
Forging and heat treatment are important steps that affect the reliability and lifespan of the bearing.
Precision grinding
Grinding is essential to ensure the accuracy of the bearing.
Assembly
The individual components are assembled into a complete bearing unit. This may involve press-fitting the rings onto the rollers, installing cages, and applying seals.
Inspection
The bearings undergo rigorous inspection to ensure quality and performance.
Maintenance Tips for Roller Bearing
Handle with care:
Bearings are delicate and can be easily damaged if dropped or mishandled; always handle them with care.
Inspect regularly:
Perform visual inspections to check for signs of damage like pitting, discoloration, or excessive wear on the bearing races and rollers.
Clean thoroughly:
Remove dirt and debris from the bearings using a soft brush or compressed air before re-lubrication.
Proper lubrication:
Use the correct type and amount of grease based on the bearing application and operating conditions; over-lubrication can be just as harmful as under-lubrication.
Correct mounting:
Ensure proper alignment and fit when installing bearings on the shaft and housing, avoiding over-tightening.
Check housing and shaft:
Inspect the shaft and bearing housing for any damage or imperfections before mounting the bearing.
Avoid contamination:
Protect bearings from dust, moisture, and corrosive environments by using appropriate seals or enclosures.
Consider operating conditions:
Choose a lubricant suitable for the operating temperature and load conditions of the application.
Use correct tools:
Utilize the right tools for bearing installation and removal to prevent damage.
Monitor for abnormal sounds:
Listen for unusual noises like grinding or squealing which could indicate bearing issues.
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FAQS
Q: What is the bearings lead time and production lead time?
A: Depending on the order quantity, the delivery time ranges from 3 days to 30 days. The lead time for customized bearings will be between 30 and 60 days.
Q: What are your delivery methods and payment methods?
A: Our delivery methods are EXW, FOB, CIF. Our payment method is 100% TT Payment before shipping.
Q: Can you customize branding for customers if they buy bearings from you?
A: We can customize customer branding. If the customer only needs to print the brand on the bearing, there is no MOQ and extra cost. If the customer needs to customize the color box, additional charges will be required. The cost of each size color box is US$150, 2000 boxes.
Q: Can you help us transport the bearings to our country ?
A: We can. We can arrange FedEx or DHL shipping for small orders. We can arrange sea shipping for large orders, and you need to do import customs clearance.
Q: What materials are your bearings made of, and what are their quality levels?
A: Our bearing material is Chrome steel Gcr15, There are also bearings made of special materials, such as stainless steel, ceramics, plastics, etc. Quality grades are: Z1V1, Z2V2, Z3V3, Z4V4, P0, P6, P4, P5.
Q: Is there a minimum order quantity for bearings orders?
A: Standard model bearings, no minimum order quantity, you can buy one. Customized bearings have a minimum order quantity, which will vary depending on the size and material of the customized bearing.
Q: Where is your main bearing market?
A: Our main markets are South America, Africa and the Middle East.So far, we have exported to 100 countries.
Q: What is a roller bearing used for?
A: Roller bearings — also known as rolling-element bearings — are similar to ball bearings in that they are designed to carry a load while minimizing friction. However, roller bearings transmit loads using cylinder rolling elements, rather than balls, to maintain the separation between moving parts of the bearing.
Q: What is the meaning of roll bearing?
A: rolling bearing in Mechanical Engineering
Q: When to use roller bearings?
A: Roller bearings excel in applications with heavy radial and axial loads, such as in conveyor systems and large industrial machinery. They are also preferred for heavy loads over other types of bearings, due to their larger contact area and enhanced rigidity.
Q: Which is the most preferred use of roller bearings?
A: They are often used in applications where misalignment and shock loads are common, such as in mining and construction equipment. Cylindrical Roller Bearings: Cylindrical rollers are used in these bearings, which are particularly suitable for applications with high radial loads.
Q: When may roller bearings be used?
A: The roller bearing is used in the mobilization of machinery to reduce friction between moving parts. The different types of roller bearings are used in heavy-duty machinery that supports radial, axial and thrust loads.
Q: What is the difference between a roller bearing and a plain bearing?
A: What are the differences between roller bearings and plain bearings? Roller bearings and plain bearings are both used for rotating motion to support or guide moving parts. However, they are differentiated by the fact that plain bearings have no rolling elements.
Q: How do roller bearings fail?
A: As shown in Figure 2, the prime reason roller bearings fail to reach life expectancy is due to lubricant contamination from particles. To the naked eye, a lubricant sample might look clean, but in fact, contains tiny wear-causing contaminants, including dirt, dust, sand, metal shards and other elements.
Q: How long is the life span of a roller bearing?
A: The bearing Dynamic Capacity, C, is defined as the constant stationary radial load which a rolling bearing can theoretically endure for a basic rating life of one million revolutions.
Q: What is an example of a roller bearing?
A: Spherical roller bearings have a wide range of use cases. They are used in applications where heavy loads, moderate to high speeds and possible misalignment occur. Some examples are off-road vehicles, pumps, mechanical fans, marine propulsion, wind turbines, and gearboxes.
Q: Which is better sliding bearing or roller bearing?
A: Sliding bearings and Roller bearings are normally seen in many sectors to fix the friction in the machinery parts. Sliding bearings are applied in the sliding surface to replace heavy load whereas rolling bearings have been used in round surfaces such as DVD players and bicycle motors.
Q: What is the strongest bearing?
A: They typically have greater load capacity and rigidity than ball bearings. The spherical roller style can handle axial loads as well as high radial loads.
Q: How do you identify a roller bearing?
A: '6206' is the Basic Designation - Digit Identification of Bearing; 'X1', 'LLB', 'C3', 'P5', 2AS' are the suffixes. For some bearings, they are exclusively identified with numeric codes, devoid of any prefix or suffix, such as the bearing “6206”. Some bearings only have suffixes, such as “6206 LLB C3 P5”.
Q: Why do roller bearings fail?
A: Bearing damage can occur for many reasons. Problems such as misalignment, unbalance, looseness and friction are all telegraphed through the bearing, sometimes leading to failure.
Zhejiang Waxing Electromechanical Co., Ltd is well-known as one of the leading roller bearing manufacturers and suppliers in China, featured by quality products and competitive price. Please feel free to buy customized roller bearing made in China here from our factory.
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