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- 10pcs R188 Open Deep Groove Ball Bearing,1/4"...
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Item #:
247931275
10pcs R188 Open Deep Groove Ball Bearing,1/4" x1/2" x3/16 Fidget Spinner Bearing, Nylon Caged,C3 Clearance
89% of respondents would recommend this to a friend
Item #:
247931275
KYD 15
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Order now and get it around Saturday, September 26
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Experience high speed and low noise with our R188 Open Fidget Spinner Bearings, perfect for maximizing your rotation time!
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What Stands Out
Precision Engineering
Crafted for superior performance, these bearings provide enhanced stability and durability, ensuring seamless operation for fidget spinners and various machinery applications.
Nylon Caging
The nylon cage reduces friction and noise, promoting smoother spins and longer life, making it ideal for both casual users and serious hobbyists.
Versatile Sizing
Measuring 1/4" X 1/2" X 3/16", these bearings fit a wide range of devices, delivering reliable performance wherever they are used.
Product Details
| Brand Name | KABOBEARING |
| Bearing Number | R188 |
| Bearing Type | Ball Bearing |
| Number of Items | 10 |
| Part Number | R188-OPEN |
| Unit Count | 10 Count |
| Manufacturer | KABOBEARING |
| Included Components | bearing |
| Model | R188-OPEN |
| Item Weight | 2.3 g |
| Material Type | Alloy Steel |
| Compatible Lubricant | Grease |
| Specification Met | ABEC 5 |
| Brand | KABOBEARING |
| Material | Alloy Steel |
Who Should Buy?
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Fidget Spinner Users
Ideal for those looking to enhance the spinning experience and durability of their fidget spinners.
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Hobbyists and Tinkerers
Great for DIY projects requiring smooth rotational movement in devices or toys.
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Small Tool Manufacturers
Useful for manufacturers designing compact tools that benefit from low-friction bearings.
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Heavy Machinery
Not suitable for heavy machinery applications where high load-bearing capability is essential.
Product Description
10pcs R188 Open Deep Groove Ball Bearing,1/4" x1/2" x3/16 Fidget Spinner Bearing, Nylon Caged,C3 Clearance
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Customer Questions & Answers
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Question:
What are the dimensions of the R188 Open Deep Groove Ball Bearing?
Answer: The R188 Open Deep Groove Ball Bearing has dimensions of 14mm inner diameter, 12mm outer diameter, and a thickness of 3.16mm. These specifications make it suitable for applications requiring compact yet robust bearings, such as fidget spinners or small machinery. Their precise sizing ensures optimal performance in high-speed environments, enhancing their utility in various mechanical applications. -
Question:
What is the significance of C3 large clearance in the R188 bearing?
Answer: The C3 designation indicates a larger internal clearance compared to standard bearings, allowing for greater thermal expansion and movement. This is particularly important in applications where the bearing experiences heat or loading changes. For example, using these bearings in high-speed fidget spinners provides smoother rotations and reduces friction, contributing to longer use between maintenance. -
Question:
Can these bearings be used for fidget spinners?
Answer: Yes, the R188 Open Deep Groove Ball Bearings are specifically designed for use in fidget spinners. Their design features, including the nylon cage and optimal clearance, allow for longer and smoother spin times. This makes them ideal for enthusiasts looking to enhance their spinning experience or for those creating fidget spinners as a hobby or product. -
Question:
How many bearings come in a package for the R188 type?
Answer: A package contains 10 pieces of R188 Open Deep Groove Ball Bearings. This bulk option is excellent for DIY projects or for those needing spare parts for repairs or construction. Having multiple bearings on hand allows users to easily maintain several fidget spinners or other devices, ensuring they can enjoy consistent performance without downtime. -
Question:
What materials are the R188 bearings made of?
Answer: The R188 bearings are typically crafted from high-quality stainless steel, ensuring durability and corrosion resistance. The nylon cage used in these bearings provides additional strength and lowers the friction coefficient, contributing to the overall efficiency and longevity of the bearing's lifecycle. This combination makes them suitable for various environments, from hobby applications to more demanding industrial uses. -
Question:
What applications are best suited for the R188 Open Deep Groove Ball Bearings?
Answer: Apart from fidget spinners, the R188 bearings are well-suited for small motors, robotics, and RC vehicles. Their design allows for high-speed rotations and minimizes friction, making them ideal for applications where efficiency and speed are crucial. Whether you’re building a model car or experimenting with robotics, these bearings provide reliable performance. -
Question:
Is it necessary to lubricate the R188 bearings?
Answer: Yes, while the R188 ball bearings can handle some friction without additional lubrication, adding lubricant can significantly enhance performance and lifespan. Proper lubrication reduces wear and heat generation, leading to quieter operation. Regularly check the bearings for signs of wear, and if they seem dry, apply a suitable bearing grease or oil to maintain their efficiency. -
Question:
What are the benefits of using nylon caged bearings?
Answer: Nylon-caged bearings like the R188 offer several advantages, including reduced weight, lower friction, and greater flexibility in smaller configurations. The nylon cage also helps keep the balls evenly spaced, which can enhance stability and performance. In dynamic applications like fidget spinners, these benefits translate into enhanced spinning times and smoother action. -
Question:
How do I install the R188 bearings in my device?
Answer: Installing R188 bearings typically involves removing the old bearings and substituting them with the new ones. Ensure the housing is clean before fitting the new bearings, aligning them properly to avoid any obstruction. This simple process allows you to enhance the performance of your device, whether it’s a fidget spinner or another piece of machinery, ensuring smooth operation. -
Question:
Where can I buy 10pcs R188 Open Deep Groove Ball Bearing in Cayman Islands?
Answer: You can purchase the 10pcs R188 Open Deep Groove Ball Bearing from Ubuy. They offer a wide range of bearings, including the R188 variety, ensuring you find exactly what you need for your projects. Ubuy provides access to various products with detailed descriptions, so you can make an informed choice based on your requirements.
KABOBEARING Deep-Groove Ball Bearings Editorial Review
10pcs R188 Open Deep Groove Ball Bearing, 1/4" x 1/2" x 3/16 Fidget Spinner Bearing, Nylon Caged, C3 Clearance is ideal for various small gadget projects, featuring durable alloy steel construction and a lightweight design of just 2.3 grams. Users found these bearings effective for their intended uses, especially in situations where dust is not an issue, such as in 3D printed projects. However, some reviewers noted that while they spin adequately, the quality can vary, with some bearings making noise after only a few spins. Overall, they offer good functionality but may be seen as expensive for the quantity and size provided.
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Pros
- Durable alloy steel material for longevity
- Ideal for small gadget projects
- Lightweight design for easy integration
- Function well in dust-free environments
- Met ABEC 5 specifications for precision
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“Great products and very good service: very easy and very fast international delivery.”
9 September 2026 · via Trustpilot
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8 September 2026 · via Trustpilot
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KYD 15
Order now and get it around Saturday, September 26
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
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Features & Benefits
- Includes 10 Pcs of R188 Open Fidget Spinner Bearings.
- Features an ABEC-5 precision grade for top performance.
- Z3V3 noise level ensures minimal sound and vibration.
- Constructed from durable chrome steel with G10 grade steel balls.
- C3 clearance enhances and extends rotation time.
- Ideal for fingertip gyroscopes and other spinning applications.
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