--- product_id: 148772598 title: "8mm ID 12mm OD 3.5mm Thickness Bearing Steel Mini Groove Ball Bearings DIY Industry MR128ZZ Pack of 10" brand: "cnbtr" price: "$22.74" currency: USD in_stock: true category: "Cnbtr" url: https://www.desertcart.us/products/148772598-8mm-id-12mm-od-3-5mm-thickness-bearing-steel-mini store_origin: US region: United States of America --- # Smooth, reliable rotation Precision 8x12x3.5mm sizing Durable bearing steel build 8mm ID 12mm OD 3.5mm Thickness Bearing Steel Mini Groove Ball Bearings DIY Industry MR128ZZ Pack of 10 **Brand:** cnbtr **Price:** $22.74 **Availability:** ✅ In Stock ## Summary > ⚙️ Elevate your projects with precision that keeps you ahead! ## Quick Answers - **What is this?** 8mm ID 12mm OD 3.5mm Thickness Bearing Steel Mini Groove Ball Bearings DIY Industry MR128ZZ Pack of 10 by cnbtr - **How much does it cost?** $22.74 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/148772598-8mm-id-12mm-od-3-5mm-thickness-bearing-steel-mini) ## Best For - cnbtr enthusiasts ## Why This Product - Trusted cnbtr brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Pack of 10 for Bulk Value & Convenience:** Keep spares on hand or outfit multiple projects without delay. - • **Versatile Industrial & DIY Applications:** Perfect for machinery, power transmission, cycling, and more—upgrade your gear effortlessly. - • **Built to Last with Premium Bearing Steel:** Resists wear and tear, ensuring longevity in demanding industrial or DIY projects. - • **Precision Engineered for Peak Performance:** Exact 8mm ID, 12mm OD, 3.5mm thickness for flawless fit and function. - • **Trusted Quality with 4.5-Star User Approval:** Join the community of pros who rely on CNBTR for consistent, smooth operation. ## Overview The CNBTR MR128ZZ mini groove ball bearings feature a compact 8x12x3.5mm size crafted from durable bearing steel. Designed for smooth, reliable rotation, this pack of 10 bearings is ideal for industrial machinery, cycling components, and DIY applications, delivering long-lasting performance and trusted quality with a 4.5-star rating. ## Description CNBTR 8mm ID 12mm OD 3.5mm Thickness Bearing Steel Mini Groove Ball Bearings DIY Industry MR128ZZ Pack of 10: desertcart.com: Industrial & Scientific ## Features - [Material] Made of bearing steel material, not easy to wear, and lasting performance. It's a great substitute for your product. - [Size]8 x 12 x 3.5mm/0.31 x 0.47 x 0.14"(ID x OD x T).Bearings have 8mm inner diameter, 12mm outer diameter, and 3.5mm.Please check the size carefully before purchasing. - Reliable Performance: Our bearings are precision engineered, ruggedly constructed, and perform reliably. - Usage Scenarios: Used in various industrial fields such as machinery, power transmission, transportation vehicles, construction machinery or household applications, etc. - Service: If an item is not suitable for the intended use or the item does not fit the dimensions, please contact us. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07M7H7RBC | | Bearing Number | MR128ZZ | | Bearing Type | Ball Bearing | | Brand | CNBTR | | Brand Name | CNBTR | | Compatible Lubricant | Grease | | Customer Reviews | 4.5 out of 5 stars 33 Reviews | | Item Thickness | 3.5 Millimeters | | Item Weight | 12 Grams | | Manufacturer | yqltd | | Material | Alloy Steel | | Material Type | Alloy Steel | | Model | M6190101158 | | Outside Diameter | 12 Millimeters | | Part Number | M6190101158 | ## Product Details - **Bearing Number:** MR128ZZ - **Brand:** CNBTR - **Item Thickness:** 3.5 Millimeters - **Item Weight:** 12 Grams - **Material:** Alloy Steel ## Images ![8mm ID 12mm OD 3.5mm Thickness Bearing Steel Mini Groove Ball Bearings DIY Industry MR128ZZ Pack of 10 - Image 1](https://m.media-amazon.com/images/I/71RJY9u4pkL.jpg) ![8mm ID 12mm OD 3.5mm Thickness Bearing Steel Mini Groove Ball Bearings DIY Industry MR128ZZ Pack of 10 - Image 2](https://m.media-amazon.com/images/I/71M8KtgaNyL.jpg) ![8mm ID 12mm OD 3.5mm Thickness Bearing Steel Mini Groove Ball Bearings DIY Industry MR128ZZ Pack of 10 - Image 3](https://m.media-amazon.com/images/I/71qVXngA2HL.jpg) ![8mm ID 12mm OD 3.5mm Thickness Bearing Steel Mini Groove Ball Bearings DIY Industry MR128ZZ Pack of 10 - Image 4](https://m.media-amazon.com/images/I/71p0dAvhfGL.jpg) ![8mm ID 12mm OD 3.5mm Thickness Bearing Steel Mini Groove Ball Bearings DIY Industry MR128ZZ Pack of 10 - Image 5](https://m.media-amazon.com/images/I/61poysmn2+L.jpg) ## Frequently Bought Together - CNBTR 8mm ID 12mm OD 3.5mm Thickness Bearing Steel Mini Groove Ball Bearings DIY Industry MR128ZZ Pack of 10 - Arduino Nano Every [ABX00028] – ATmega4809, 48KB Flash, 6KB SRAM, 20 Digital I/O, 8 Analog Inputs, Micro USB Type-B, Compatible with Arduino IDE for Embedded Projects --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/148772598-8mm-id-12mm-od-3-5mm-thickness-bearing-steel-mini](https://www.desertcart.us/products/148772598-8mm-id-12mm-od-3-5mm-thickness-bearing-steel-mini) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-07-17*