Source smarter with
Leverage AI to find the perfect product match in seconds
Matches from over 100 million products with precision
Handles queries 3 times as complex in half the time
Verifies and cross-validates product information
Get the app
Get the Alibaba.com app
Find products, communicate with suppliers, and manage and pay for your orders with the Alibaba.com app anytime, anywhere.
Learn more

R2azz ball bearing

(58 products available)

About r2azz ball bearing

Types of r2azz ball bearing

These are common r2azz ball bearings. They come in different types to suit specific applications. These include the following:

  • Single Row Deep Groove Ball Bearings

    This is the most common type used in many applications. These are ideal for where radial and axial loadings are not huge. This is because they can handle radial loads and some axial loads.

  • Double Row Deep Groove Ball Bearings

    The feature that distinguishes these ball bearings from the deep groove singles is their out race. It has two grooves. This allows for two rows of balls. This feature enhances load-carrying capacity and is suitable for applications where loads are high.

  • Angular Contact Ball Bearings

    These are mainly designed to accommodate both radial and axial loads. This feature is because it has the inner and outer raceways. These races are set at an angle to each other. Paper mills and machine tool spindles are common places where one can find these ball bearings.

  • Self-Aligning Ball Bearings

    These ball bearings have two rows of balls. It also has a common spherical outer raceway and a cylindrical inner groove. The self-aligning nature enables these r2azz ball bearings to accommodate misalignment. It can do this while maintaining a low level of friction. It is ideal for applications like drain fans where one finds itself needing to allow for shaft deflections.

  • Specialty Ball Bearings

    These bearings include bearing balls made from different materials. These materials can be steel, ceramic, or chrome-plated steel. They feature varying resistance to wear and corrosion. This variation allows them to fit into niche applications requiring specific resistance qualities. Such applications include the medical industry and high-performance aerospace components.

Function, Feature, and Design of r2azz ball bearing

Function

A bearing is a mechanical element that facilitates rotational or linear movement by reducing friction

An r2azz deep groove ball bearing enables smooth motion by allowing an inner and outer race to rotate with ball elements in between. This setup minimizes direct metal-to-metal contact in the r2azz skate bearings.

This specific type of ball bearing supports both radial loads (perpendicular to the axis) and axial loads (along the axis). This dual support makes it ideal for accommodating various types of mechanical stresses found in motors, fans, and wheels.

In essence, the primary function helps systems handle loads efficiently while enduring heat. This is done through the ball's rolling motion, unlike sliding.

Feature

Deep groove ball bearings come with several key features that enhance their performance and broaden their application scope. These are the features:

  • Deep Grooved Races: The deep grooves in the races allow for the capture of the balls even under heavy load. This feature enables them to support both radial and axial loads effectively.
  • Shielding Options: An r2azz ball bearing normally has ZZ or RZ shielding. This feature protects it from dirt, dust, and lubrication loss. This feature allows the bearing to function well in adverse environments. The difference between RZ and ZZ is that while the former has a single shield, the latter has two, thus adding an extra layer of protection.
  • Material Composition: Deep groove ball bearings are typically constructed from high-carbon chromium steel. It is called 52100. In some instances, they are also made from ceramics or hybrid materials. They are also used for deep groove ball bearing replacement.
  • Grease Retention: The bearings are normally pre-greased with high-performance lubricants. This retention prolongs the bearing's service life and reduces maintenance needs.
  • Cages: It normally has cages made of nylon, steel, or brass. They are responsible for keeping the balls evenly spaced. This spacing minimizes wear and ensures smooth operation.

Design

The r2azz ball bearing design plays a critical role in its functionality, load capacity, and durability. Below are components that constitute this bearing's design:

  • Races

    There are two raceways in an r2azz skateboard ball bearing. One is the inner race, while the other is the outer race. They have grooved paths where the balls roll. The smoothness and geometry of these grooves are vital for load distribution and minimizing wear. The races are usually made of high-strength steel and are one of the key components that bear the brunt of the load.

  • Balls

    Like in any other bearing, these balls are the crucial components that enable the rolling motion. In this specific bearing, the balls are perfectly spherical to ensure even load distribution. This even distribution reduces stress on the races and extends the lifespan of the bearing. One may also find ceramic balls in some high-performance or specialized bearings.

  • Cage (or Separator):

    The role of the cage is to keep the balls evenly spaced. It also ensures that each ball gets equal load sharing. Cages are normally made from steel, brass, or high-quality polymers. Steel or brass cages are normally used in heavy-duty applications. These are due to their strength and durability. On the other hand, polymer cages are lighter and offer lower friction, which is ideal for applications where corrosion is likely to occur.

  • Closing Shields:

    The bearing features shield options like ZZ or RZ. These shields are thin metal covers that are installed on one or both sides of the bearing to minimize the chances of dirt entering the bearing. They also help in grease retention. While RZ has a single shield, ZR has two. This simple design increases the bearing's longevity in harsh conditions.

  • Lubrication:

    Each of these deep groove ball bearings is usually pre-lubricated with high-quality grease. This grease reduces friction and wear between the balls and the races. It also prevents the occurrence of overheating. Over time, the grease gets consumed or becomes less effective, necessitating periodic maintenance to either re-grease or lubricate the bearing with fresh grease.

Commercial Use of r2azz ball bearing

The r2azz deep groove ball bearing is a highly versatile component. Its versatility extends to many industries. It, therefore, plays the role of a critical element in multiple applications that require efficiency and reliability. Below are some of these applications and the industries therein:

  • Industrial Machinery

    Industrials are the most common industry where these ball bearings are used. The ball bearings enable motors and generators to function with optimal smoothness. They also go into pumps, fans, and compressors. These are the common ventilators and air conditioning that are used in industrial setups.

    The ball bearings assist in conveyor rollers and heavy machinery like electric hoisters used in the industry. They help in wheel casters, which provide mobility, and keep spindles in textile machinery rotating seamlessly.

  • Consumer Electronics

    There is also a bearing of this kind in consumer electronics. The deep groove ball bearings contribute to the smooth operation of motors, which are widely used in washing machines. They also help in the smooth operation of fans, which are common in cooling systems.

    Other appliances that use these ball bearings include refrigerators and microwaves. This is where the bearings help the doors to operate smoothly and effortlessly.

  • Aerospace and Defense

    Its deep groove ball bearings play an important role in the aerospace and defense industries. They ensure the efficacy and reliability of equipment used in this critical application. They handle the very high precision and demand for low friction that the aerospace system components require. These systems include navigation devices and control systems. It is in these systems that even a small error can lead to a catastrophic result.

  • Medical Devices

    The medical industry is another industry that uses these ball bearings. They help keep medical devices like infusion pumps and diagnostic machines operating smoothly. This application requires the devices to be as accurate as possible. There is, therefore, a need to ensure that all the components do work together seamlessly without friction.

  • Automotive Industry

    In the automotive industry, deep groove ball bearings help wheel hubs provide smooth operation. They are also found in engines where they reduce friction among the moving components. The ball bearings are used in alternators and electric motors. Other places these ball bearings are used include pumps, fans, and air conditioning systems.

  • Gates and Fences

    The gate and fence industry uses deep groove ball bearings to give the sliding gates a smooth operation. They are also used on roller shutters. These ball bearings help the rollers to operate smoothly without any friction. The ball bearings reduce wear on both the roller and the shutter which increases the efficacy of the shutter and extends its durability.

How to Choose the r2azz ball bearing

The lifetime of any product depends on how compatible the components used in it are. When selecting the r2azz deep groove ball bearing, the following factors should be considered. These factors will ensure the longevity and full utilization of the bearings:

  • Load Capacity

    Radial load is the total load that is perpendicular to the axis of the shaft that the bearing supports. Axial load, on the other hand, is the load that is parallel to the shafts. The deep groove ball bearings are among the very few bearings that can support both of these loads to varying degrees.

    Although there are deep groove ball bearings with high load capacities, it is still important to look for one with the appropriate load capacity. The load capacity commonly depends on the type of application an r2azz bearing is used for. Heavy-duty machinery applications normally require bearings with high radial load capacity.

    On the other hand, high axial load capacity bearings are ideal for screw drives, lifting equipment, and other relevant applications. It is, therefore, important to check both radial and axial load capacities of the bearing for smooth operation when purchasing deep groove ball bearings online.

  • Speed Rating

    Speed rating refers to the efficiency of ball bearings under high-speed conditions. A higher speed is usually associated with a lower lifespan. This is because increased speed results in friction and heat generation, which ultimately affects the bearing’s material negatively.

    That is why opting for ball bearings that are designed to operate at high speeds, especially in motors, fans, and spindles is important. These applications commonly run at elevated speeds, which, if the bearings can’t handle, will decrease their efficacy and even cause them to fail.

  • Sizing

    The size of the deep groove ball bearing is critical for two main reasons. First, it ensures that the bearing will fit into the designated housing in the application. Secondly, it takes into consideration that the bearing will support the loads expected of it.

    Using a bearing that is too small for the load will cause undue stress on the individual elements of the bearing. This will cause it to fail long before it is rated for use. On the other hand, using an oversized bearing will cause unnecessary friction and heat generation.

  • Material

    Deep groove ball bearings are commonly made from several materials. They all have their own advantages and disadvantages. The most common material for ball bearings is stainless steel. This material is preferred because it is durable, corrosion-resistant, and cost-effective. Another material it can be made of is ceramic. This material is favored for high-performance applications because it is lighter and highly corrosion-resistant.

  • Caging

    The deep groove ball bearing cages are normally made of steel, brass, or polyamide. Each of these caging materials has its own benefits. Steel cages, for instance, have high strength and are very durable. This makes them the ideal option for heavy-duty industrial applications.

    Brass cages, on the other hand, offer high wear resistance and better thermal conductivity than their steel counterparts. This makes them suitable for high-speed applications. Polyamide cages are lightweight. They are also more cost-effective than brass and steel cages. These cages are often used in general-purpose and light-duty applications.

Q&A

Q. How does one maintain deep groove ball bearings?

Deep groove ball bearings usually require minimal maintenance when properly lubricated during installation. However, regular inspections are essential to ensure they operate as they should. This is especially true in industrial settings where they are constantly in use.

The ideal maintenance schedule largely depends on the specific application, environment, and load conditions. One should always refer to the manufacturer's recommendations for maintenance practices and inspection intervals if any are there. Here are some general maintenance tips for deep groove ball bearings:

  • Regular Inspections

    Closely monitor the ball bearings for abnormal wear, corrosion, or damage during visual and tactile inspections. Look for signs like pitting, flaking, or discoloration.

  • Lubrication

    In cases where the bearings are not re-lubricated, one should pay close attention to ensure that the bearings aren’t running dry of lubrication. Dry bearings can wear out faster than normal.

  • Cleaning

    Deep groove ball bearing cleaners that have shields or seals like the RZ and ZZ should be cleaned more often than not. This is because contaminants often accumulate on their surfaces. The contaminants frequently obstruct the seals or shields. Use soft, lint-free cloths to carefully wipe the exposed surfaces of these bearings to remove dust and debris.

  • Temperature Monitoring

    Monitor the temperature of the bearings frequently, especially for high-performance applications. An increase in the bearing's temperature is a direct indication of the declining state of the bearing.

  • Alignment Checks

    Improper axial alignment of deep groove ball bearings can cause excessive wear in the bearings. Frequently check and correct any misalignment to prevent premature failure.

Q. Can one use deep groove ball bearings in high-temperature environments?

Yes, one can use deep groove ball bearings in high-temperature environments. They are designed to withstand a wide range of temperatures, including elevated ones commonly found in industrial settings.

They achieve this ability due to the high-quality materials and lubricants used in their construction. These materials and lubricants are able to withstand extreme temperatures without deteriorating. However, one should note that continuous exposure to extremely high temperatures can reduce the bearings' lifespan and performance.

This reduction occurs as the materials gradually undergo fatigue and the internal friction might increase. One way to mitigate this effect is by regularly monitoring the bearings’ conditions and possibly increasing the maintenance frequency. Also, using high-performance lubricants specifically designed for high-temperature applications is highly recommended.

Q. Are there signs that indicate failing deep groove ball bearings?

Deep groove ball bearings usually exhibit several signs, which, when keenly observed, indicate their impending failure. These signs also help in early detection of the failure so that timely corrective action can be taken.

  • Excessive Noise

    This is especially the case when the bearings are under load or in motion. Deep groove ball bearings normally produce a slight noise during operation. This is especially when they are in use. However, if there is excessive grinding, rattling, or clicking noise, then that’s a direct indication that the bearings are worn out or damage.

  • Vibration

    Worn or damaged bearings also cause increased vibration during operation. Kinetic imbalance, which is caused by a pit, crack, or other damage on the bearing surface, may be responsible for this vibration. The vibration might negatively impact the machinery's overall performance. It may lead to further mechanical damage if the bearings are not replaced in good time.

  • Wear and Corrosion

    One of the tell-tale signs of r2azz deep groove ball bearing failure is the appearance of rust and corrosion on its surface. All of these may come as a result of contamination, moisture, or inadequate lubrication. Failure to remedy the situation by replacing the affected bearings will not only make the bearings less effective. But it will also damage other adjacent components in the machinery.

  • Increased Operating Temperature

    A slight increase in the temperature of the ball bearings during operation is normal. However, a drastic increase in the temperature aftermath is an obvious indicator that the bearings have gone bad.