Skate Bearing Size: The Ultimate Guide to Finding the Perfect Fit

Introduction

The size of your skateboard bearing is a critical factor in determining the performance and durability of your ride. With so many different sizes available, it can be overwhelming to know which one is right for you. This comprehensive guide will provide you with all the information you need to choose the perfect bearing size for your skateboard.

Understanding Skate Bearing Sizes

Skate bearing sizes are typically expressed using two numbers, separated by a decimal point. The first number refers to the inner diameter of the bearing, while the second number refers to the outer diameter. For example, a 608 bearing has an inner diameter of 8mm and an outer diameter of 22mm.

Each bearing size is designed for a specific purpose and type of skateboard.

Choosing the Right Bearing Size

The correct bearing size for your skateboard depends on the following factors:

• Axle size: The bearing should fit snugly onto the axle, with no play or wobble.
• Wheel diameter: Larger wheels require larger bearings.
• Riding style: Aggressive riders need bearings that can withstand higher loads and impacts.

Popular Skate Bearing Sizes

The following bearing sizes are the most popular and widely used in skateboarding:

• 608: The smallest and most common bearing size, used for smaller wheels and lighter riders.
• 6900ZZ: A larger bearing, suitable for wheels up to 60mm in diameter.
• 6901ZZ: The largest and strongest bearing, designed for aggressive riding and wheels over 60mm in diameter.

Tips and Tricks

• Measure your axle: Use a caliper to measure the diameter of your axle to determine the correct bearing size.
• Inspect your bearings: Check the bearings regularly for signs of wear or damage and replace them when necessary.
• Lubricate your bearings: Regularly lubricate your bearings with high-quality bearing oil to extend their lifespan.
• Use spacers: Spacers help to distribute the load evenly on the bearings and prevent them from bending or breaking.
• Don't overtighten your bearings: Overtightening can damage the bearings and reduce their performance.

How to Step-by-Step Approach

Step 1: Measure the diameter of your axle using a caliper.
Step 2: Choose the bearing size that corresponds to your axle size and wheel diameter.
Step 3: Apply a small amount of bearing oil to the bearings.
Step 4: Insert the bearings into the wheels and press them onto the axle.
Step 5: Install spacers on either side of the bearings.
Step 6: Tighten the axle nut until the bearings are snug but not overtightened.

Compare Pros and Cons

FAQs

1. What is the difference between a 608 and a 6900ZZ bearing?
A 608 bearing is smaller and lighter than a 6900ZZ bearing. A 6900ZZ bearing is larger and more durable, but may not be compatible with all axles.

2. How often should I replace my skateboard bearings?
The lifespan of skateboard bearings depends on a variety of factors, such as riding frequency, terrain, and maintenance. However, as a general rule of thumb, it is recommended to replace your bearings every 3-6 months.

3. How do I know if my skateboard bearings are worn out?
Signs of worn-out skateboard bearings include: increased friction, noise, and vibration. If you notice any of these symptoms, it is time to replace your bearings.

Call to Action

Now that you have a better understanding of skateboard bearing sizes, you can choose the perfect bearings for your skateboard and enjoy years of smooth, trouble-free riding.