What Size Are Skateboard Bearings? A Complete Guide to Understanding Skateboard Bearing Sizes

Skateboarding is an exhilarating sport that requires precision and balance, and skateboard bearings are an important component that ensures smooth and fast rides. If you’re new to skateboarding or looking to upgrade your bearings, understanding skateboard bearing sizes can be overwhelming. In this article, we’ll provide a comprehensive guide to help you make an informed decision.

Skateboard bearings come in different sizes, but the most common type is the 608 bearing size. However, there are variations within this size, such as the 608-2RS, 608-RS, and 608-ZZ. These variations determine the type of shield and the materials used, and they can affect the speed and durability of the bearings. So, whether you’re a beginner or an experienced skater, read on to learn everything you need to know about skateboard bearing sizes.

Quick Summary
Skateboard bearings have a standardized size of 608, with an 8mm bore diameter, a 22mm outer diameter, and a width of 7mm. The 608 size is also found in many other applications, such as roller skates and scooters.

The Importance of Skateboard Bearings in Skateboarding

Skateboard bearings are an essential component of a skateboard as they determine how fast and smoothly the board rolls. The bearings sit inside the wheels and allow them to rotate on the axles, enabling the rider to move forward. A good quality set of bearings can make a significant difference in the performance of a skateboard, allowing for faster speeds and smoother rides.

Not only do skateboard bearings play a crucial role in the performance of the board, but also in the safety of the rider. A poorly maintained or low-quality set of bearings can cause the wheels to seize up, increasing the risk of accidents and injuries. For this reason, it is vital for skateboarders to understand the importance of selecting the right size and quality of bearings for their board, as well as maintaining them regularly to ensure optimum performance and safety.

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Different Types of Skateboard Bearings and Their Characteristics

Skateboard bearings come in different types, each with its unique characteristics. The three most common types of skateboard bearings are steel, ceramic, and hybrid bearings. Steel bearings are the most common and cost-effective, however, they are prone to rusting and wear out faster. Ceramic bearings, on the other hand, are more durable, lightweight, and corrosion-resistant. They also have better speed and require less maintenance than steel bearings. However, they are more expensive.

Hybrid bearings are a combination of ceramic balls and steel races, making them a hybrid between steel and ceramic bearings. They offer a good balance between cost and performance and have improved speed and longevity. Depending on your budget and skating style, choosing the right type of bearings can make a significant difference in your skating experience. It is important to factor in the type of terrain you will be skating on, how frequently you skate, and your skill level before selecting the suitable bearings for your skateboard.

Understanding Skateboard Bearing Size and Its Impact on Performance

Skateboard bearing size plays a crucial role in determining the performance of a skateboard. The size of the bearing is directly proportional to the speed and functionality of the skateboard. Bearings are measured by two primary dimensions – the inner diameter (ID) and the outer diameter (OD). The commonly used bearing sizes range from 608 with a 22mm OD, 7mm width, and an 8mm ID to mini-bearings with a 6mm OD, 4mm width, and 3mm ID.

Apart from the size of the bearings, factors like material, durability, and lubrication also impact the overall performance. Bearings made of high-quality materials like steel or ceramic tend to perform better and last longer. Proper lubrication also allows for smoother and faster rides. Depending on one’s skateboarding style and preferences, a suitable bearing size with the right material and lubrication can significantly impact the performance of the skateboard. It is essential to understand the impact of bearing size and other factors while selecting the right bearings for a skateboard.

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The Standard Skateboard Bearing Sizes and Their Uses

The standard skateboard bearing sizes are the most commonly used bearing sizes for skateboards. These bearings come in two different sizes for most skateboards – 608 and 627.

608 bearings are the most common size and measure 8mm in diameter and 22mm in width. They are typically used in most traditional skateboards and longboards. On the other hand, 627 bearings are slightly smaller, measuring 7mm in diameter and 22mm in width. These bearings are commonly used in inline skates and roller skates but can also be used in smaller penny boards and cruiser boards.

It is important to note that the size of your skateboard bearings can affect the overall performance of your skateboard. As such, it is important to choose bearings that are appropriate for your style, skill level, and preferred riding conditions. With this in mind, it is always a good idea to consult with a professional skateboarder or experienced skate shop staff before making a purchase.

Non-Standard Skateboard Bearing Sizes and How They Affect Your Skateboard

While standard skateboard bearings are generally 608 sized bearings, there are non-standard sizes that can affect your skateboard performance. Non-standard sizes are typically smaller or larger than the standard 608 size. Smaller bearings, such as 7mm or 688 sized bearings, can fit narrower wheels and can provide a faster, more agile ride. However, they may wear out faster due to decreased surface area and produce less speed than larger bearings. It is best to use these bearings for specific purposes, such as inline skates, rather than for traditional skateboard use.

On the other hand, larger bearings such as 1616 or 1630 sized bearings are less common, but can also have an effect on skateboard performance. Larger bearings provide increased surface area, which allows for higher speeds and a more stable ride. However, they also add extra weight to your skateboard, which can negatively affect tricks and mobility. Keep in mind that non-standard bearings may require specific wheels or parts, so be sure to check that they are compatible with your skateboard setup before purchase. Overall, understanding non-standard bearing sizes can lead to more customized skateboard setups and enhanced skateboarding experiences.

Maintenance and Replacement of Skateboard Bearings

Maintenance and replacement of skateboard bearings are essential to prolong their life and ensure top performance. Good maintenance practices involve keeping the bearings clean and lubricated. Dirt and debris can cause damage to the bearing’s inner race or balls leading to a decrease in their performance. To clean the bearings, remove them from the wheel, soak them in a cleaning solution, dry, lubricate and reinstall. Experts recommend cleaning bearings every two weeks or as frequently as possible if used frequently.

Replacing skateboard bearings should be done if the bearings are damaged or worn out. It is recommended to purchase quality bearings that can handle the type of terrain you will be skating on. Installing new bearings is an easy task that can be done using a bearing press or a Skate Tool. Upgrading to better bearings can boost performance and lead to a better skating experience. Proper maintenance and replacement of skateboard bearings can increase their lifespan and ensure a smoother ride.

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Factors to Consider When Choosing Skateboard Bearings for Your Riding Style.

When choosing skateboard bearings for your riding style, there are a few factors to consider. First, what type of terrain will you be riding on? If you will be primarily skating on smooth surfaces like concrete or indoor skateparks, a set of bearings with a higher ABEC rating may be suitable. However, if you will be skating on rougher terrain like asphalt or gravel, a set of bearings with a lower ABEC rating and more durability may be necessary.

Another factor to consider is your riding style. If you are a beginner or primarily ride for transportation, standard bearings may suffice. However, if you are an experienced skater who focuses on tricks and flips, a set of bearings with higher precision and faster speeds may be necessary to support your high-intensity riding style. Ultimately, the right set of skateboard bearings will depend on your individual preferences and intended riding style.

The Bottom Line

In conclusion, skateboard bearings come in various sizes and materials that cater to different styles of skating. The most common size used in the industry is 608, with a standard diameter of 8mm and a width of 22mm. However, alternative sizes such as 688 and 627 have become increasingly popular in recent years.

Ultimately, choosing the right size of skateboard bearings is crucial for performance, as it affects speed, stability, and durability. Consider the size of your wheels, riding style, and personal preference to ensure that you make an informed decision. Proper maintenance and regular cleaning will also extend the lifespan of your bearings, allowing you to enjoy a smoother and faster ride for longer.

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