608 Bearing Uses: Size, Specs, and Where 608 Bearings Are Used
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608 Bearing Uses: Size, Specs, and Where 608 Bearings Are Used
Quick Answer: A 608 bearing is a small deep groove ball bearing (8x22x7 mm) commonly used in skateboards, electric motors, tools, and small machinery. It is popular because of its compact size, smooth performance, and wide availability.
The 608 bearing is one of the most widely used small bearings in the world. While many people know it from skateboards, it is also used in tools, motors, and industrial equipment.
In this guide, you’ll learn the exact size, common uses, and how to choose the right type of 608 bearing.
608 Bearing Dimensions
A standard 608 bearing has the following dimensions:
- Inner Diameter (ID): 8 mm
- Outer Diameter (OD): 22 mm
- Width: 7 mm
This compact size makes it ideal for applications where space is limited but smooth rotation is still required.
What Type of Bearing Is a 608?
The 608 is a deep groove ball bearing, which means it is designed for smooth rotation, low friction, and the ability to handle both radial and light axial loads.
Because of its efficiency and reliability, it is used in both consumer products and industrial applications.
Common Uses of 608 Bearings
1. Skateboards and Rollerblades
608 bearings are most famous for being used in skateboard wheels. Each wheel typically uses two 608 bearings for smooth rolling performance.
2. Electric Motors
Small electric motors often use 608 bearings due to their compact size and ability to handle high speeds.
3. Power Tools
Drills, grinders, and other tools use 608 bearings to support rotating shafts.
4. Appliances and Equipment
You’ll also find 608 bearings in fans, conveyors, and other small mechanical systems.
5. DIY and Hobby Projects
Because they are affordable and widely available, 608 bearings are commonly used in DIY builds, robotics, and custom mechanical designs.
608 Bearing Types: Open vs ZZ vs 2RS
Like larger bearings, 608 bearings come in multiple configurations:
Open 608 Bearings
- No seals
- Lowest friction
- Best for clean environments
608 ZZ Bearings
- Metal shields
- Higher speed performance
- Light protection from dust
608 2RS Bearings
- Rubber seals
- Best protection against dirt and moisture
- Longer lifespan in rough conditions
Which 608 Bearing Should You Choose?
- Choose Open for high-speed, clean environments
- Choose ZZ for balanced speed and protection
- Choose 2RS for durability and contamination resistance
For outdoor or dirty environments, 2RS bearings are usually the best option.
Why 608 Bearings Are So Popular
The 608 bearing is popular because it is small, versatile, and widely available. It is used across industries, from consumer products like skateboards to industrial machinery and tools.
Its low cost and reliability make it one of the most commonly purchased bearing sizes.
Bulk Orders and Supply
If you need 608 bearings in volume for resale, repair, or manufacturing, bulk pricing can help reduce cost and improve supply consistency.
Final Thoughts
The 608 bearing is one of the most versatile and widely used bearings available. Whether you’re working on a skateboard, tool, or machine, choosing the right type will improve performance and lifespan.
Frequently Asked Questions
What size is a 608 bearing?