---
product_id: 262910594
title: "CNBTR 8mm ID 12mm OD 3.5mm Thickness Bearing Steel Mini Groove Ball Bearings DIY Industry MR128ZZ Pack of 10"
brand: "cnbtr"
price: "165 zł"
currency: PLN
in_stock: true
reviews_count: 5
category: "Cnbtr"
url: https://www.desertcart.pl/products/262910594-cnbtr-8mm-id-12mm-od-3-5mm-thickness-bearing-steel
store_origin: PL
region: Poland
---

# Pack of 10 for versatile DIY & industrial use Precision 8mm ID x 12mm OD x 3.5mm Thickness Durable bearing steel resists wear CNBTR 8mm ID 12mm OD 3.5mm Thickness Bearing Steel Mini Groove Ball Bearings DIY Industry MR128ZZ Pack of 10

**Brand:** cnbtr
**Price:** 165 zł
**Availability:** ✅ In Stock

## Summary

> ⚙️ Elevate your DIY game with precision that never quits!

## Quick Answers

- **What is this?** CNBTR 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?** 165 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/262910594-cnbtr-8mm-id-12mm-od-3-5mm-thickness-bearing-steel)

## 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

- • **Quality Assured:** Each bearing passes strict quality inspection with unique MPN label for guaranteed authenticity.
- • **Bulk Pack Advantage:** 10-pack bundle keeps you stocked for multiple repairs or creative builds—never run out mid-project.
- • **Compact Precision Fit:** Engineered to exact 8x12x3.5mm specs for seamless integration in tight spaces.
- • **Multi-Use Versatility:** Ideal for jewelry, power tools, video card fans, and small machinery—upgrade your projects effortlessly.
- • **Premium Bearing Steel:** Crafted from high-grade alloy steel ensuring long-lasting durability and smooth operation.

## Overview

The CNBTR MR128ZZ mini groove ball bearings feature a compact 8mm inner diameter, 12mm outer diameter, and 3.5mm thickness, crafted from durable bearing steel for enhanced wear resistance. Sold in a convenient pack of 10, these bearings are perfect for professional-grade repairs and creative projects ranging from jewelry to power tools, backed by quality assurance for reliable performance.

## Description

Specifications: Model: MR128ZZ Material: Bearing Steel Color: Titanium Color Brand name: CNBTR Size: 8 x 12 x 3.5mm/0.31 x 0.47 x 0.14"(ID x OD x T) Weight: 12g Features: 1.Dimensions: 8mm inner diameter, 12mm outer diameter, 3.5mm thickness. 2.Uses: jewelry, decoration, ornaments, video card fans, power tools, etc. 3.Material: bearing steel, not easy to wear, more . 4.Package includes 10 pieces ball bearings. Package Content: 10 x Ball Bearings The unique MPN label on each inner package, which confirm it passed the quality inspection and it is genuine item sold from our shop. Please offer it to us when you need assistance.

Review: These bearings were used to replace worn sleeve bearings for small lathe handwheel shafts. The small size outer race was appropriate for the minimal clearance available. The application is shaft stabilization in low speed application and for that purpose, these bearings are entirely satisfactory.
Review: Well made, runs smooth, don't know the longevity yet.

## Features

- Material: bearing steel, not easy to wear, more .

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07M7H7RBC |
| Batteries Required? | No |
| Customer Reviews | 4.6 4.6 out of 5 stars (32) |
| Date First Available | 9 Jan. 2019 |
| Item Weight | 12 g |
| Item model number | M6190101158 |
| Item thickness | 3.5 Millimetres |
| Manufacturer | yqltd |
| Material | Alloy Steel |
| Package Dimensions | 6.3 x 4.8 x 0.4 cm; 12 g |
| Part number | M6190101158 |

## Product Details

- **Bearing number:** MR128ZZ
- **Brand:** CNBTR
- **Item thickness:** 3.5 Millimetres
- **Item weight:** 12 Grams
- **Material:** Alloy Steel

## Images

![CNBTR 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/41Z2MdsnW3L.jpg)
![CNBTR 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/41ckUnAZZlL.jpg)
![CNBTR 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/41gG1g4AwOL.jpg)
![CNBTR 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/41kqwYW2SxL.jpg)
![CNBTR 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/41oC1pXicRL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by K***N on 6 April 2025*

These bearings were used to replace worn sleeve bearings for small lathe handwheel shafts. The small size outer race was appropriate for the minimal clearance available. The application is shaft stabilization in low speed application and for that purpose, these bearings are entirely satisfactory.

### ⭐⭐⭐⭐⭐ Review
*by P***N on 19 April 2022*

Well made, runs smooth, don't know the longevity yet.

### ⭐⭐⭐⭐ Review
*by R***S on 15 January 2023*

1 of the bearings was damaged and hard to rotate although with how many that are in the bag, this is hardly an issue considering that there are 10 in a package.

## 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

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**Shop now:** [https://www.desertcart.pl/products/262910594-cnbtr-8mm-id-12mm-od-3-5mm-thickness-bearing-steel](https://www.desertcart.pl/products/262910594-cnbtr-8mm-id-12mm-od-3-5mm-thickness-bearing-steel)

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*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-02-09*