---
product_id: 245418526
title: "uxcell U Groove Guide Pulley Rail Ball Bearings 6x21x7mm Double Metal Shielded (GCr15) Chrome Steel Bearings Roller Guide Wheel 2pcs"
brand: "uxcell"
price: "¥2185"
currency: JPY
in_stock: true
reviews_count: 11
category: "Uxcell"
url: https://www.desertcart.jp/products/245418526-uxcell-u-groove-guide-pulley-rail-ball-bearings-6x21x7mm-double
store_origin: JP
region: Japan
---

# ABEC 1, ultra-low noise level 6x21x7mm precision size Double metal shields for durability uxcell U Groove Guide Pulley Rail Ball Bearings 6x21x7mm Double Metal Shielded (GCr15) Chrome Steel Bearings Roller Guide Wheel 2pcs

**Brand:** uxcell
**Price:** ¥2185
**Availability:** ✅ In Stock

## Summary

> 🛠️ Glide into precision and silence with every spin!

## Quick Answers

- **What is this?** uxcell U Groove Guide Pulley Rail Ball Bearings 6x21x7mm Double Metal Shielded (GCr15) Chrome Steel Bearings Roller Guide Wheel 2pcs by uxcell
- **How much does it cost?** ¥2185 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/245418526-uxcell-u-groove-guide-pulley-rail-ball-bearings-6x21x7mm-double)

## Best For

- uxcell enthusiasts

## Why This Product

- Trusted uxcell brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Shielded for Longevity:** Double metal shields lock in lubricant and keep contaminants out, extending bearing life.
- • **Silent Performance Guaranteed:** ABEC 1 tolerance and Z2 noise rating deliver whisper-quiet, vibration-free rotation.
- • **Premium Chrome Steel Construction:** GCr15 alloy steel offers exceptional strength and corrosion resistance for long-lasting reliability.
- • **Versatile Industrial Compatibility:** Ideal for micro motors, small rotary motors, office machines, and more—upgrade your gear effortlessly.
- • **Precision Engineered for Seamless Motion:** Exact 6x21x7mm dimensions ensure perfect fit and smooth operation in your equipment.

## Overview

The uxcell U Groove Guide Pulley Rail Ball Bearings (6x21x7mm) feature double metal shields and premium GCr15 chrome steel for durable, low-noise performance. With ABEC 1 tolerance and Z2 noise level, these bearings are engineered for smooth, reliable operation across a wide range of industrial and micro motor applications.

## Description

uxcell U Groove Guide Pulley Rail Ball Bearings 6x21x7mm Double Metal Shielded (GCr15) Chrome Steel Bearings Roller Guide Wheel 2pcs: desertcart.com: Industrial & Scientific

Review: Good product - Good product
Review: Super roller bearings! Smooth - Smooth and utterly quiet. Great produce and fast shipping.

## Features

- (I.D.=6mm, O.D.=21mm, Thickness=7mm)
- bearings are shielded on both sides to keep lubricant in
- Chromium Steel long-life bearings, smooth and low noise
- ABEC Tolerance 1 (P0), Z2 Noise Level for most general use
- Suitable for all kinds of industrial equipment, micro motor, small rotary motor, office equipment and so on

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08H4K53Y7 |
| Bearing Number | GCr15 |
| Bearing Type | Ball Bearing |
| Best Sellers Rank | #67,374 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #307 in Deep-Groove Ball Bearings |
| Brand | uxcell |
| Brand Name | uxcell |
| Compatible Lubricant | Grease |
| Customer Reviews | 4.4 out of 5 stars 50 Reviews |
| Item Thickness | 7 Millimeters |
| Manufacturer | uxcell |
| Material | Alloy Steel, Metal |
| Material Type | Alloy Steel, Metal |
| Model | a19111300ux0362 |
| Outside Diameter | 21 Millimeters |
| Part Number | a19111300ux0362 |
| Specification Met | ABEC 1 |

## Images

![uxcell U Groove Guide Pulley Rail Ball Bearings 6x21x7mm Double Metal Shielded (GCr15) Chrome Steel Bearings Roller Guide Wheel 2pcs - Image 1](https://m.media-amazon.com/images/I/51AEgOQSLIL.jpg)
![uxcell U Groove Guide Pulley Rail Ball Bearings 6x21x7mm Double Metal Shielded (GCr15) Chrome Steel Bearings Roller Guide Wheel 2pcs - Image 2](https://m.media-amazon.com/images/I/610TcPV8jUL.jpg)
![uxcell U Groove Guide Pulley Rail Ball Bearings 6x21x7mm Double Metal Shielded (GCr15) Chrome Steel Bearings Roller Guide Wheel 2pcs - Image 3](https://m.media-amazon.com/images/I/416Oob28OEL.jpg)
![uxcell U Groove Guide Pulley Rail Ball Bearings 6x21x7mm Double Metal Shielded (GCr15) Chrome Steel Bearings Roller Guide Wheel 2pcs - Image 4](https://m.media-amazon.com/images/I/61vQBxLX1bL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good product
*by P***L on May 20, 2026*

Good product

### ⭐⭐⭐⭐⭐ Super roller bearings! Smooth
*by T***N on November 26, 2025*

Smooth and utterly quiet. Great produce and fast shipping.

### ⭐⭐⭐⭐⭐ Works to replace worn down screen door wheels
*by B***R on May 28, 2024*

I had a 1 inch screen door wheel cartridge that I could not find a replacement for anywhere. So, I had to drill out the rivet and replace the wheels By hand. Be careful with measurements, especially the bearing width, but, it was pretty easy to do. I got some screws that had the nut built into the shank, like you see in furniture sometimes. Worked like a champ and my screen door rolls like butter now! The ball bearings in these little wheels are great.

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**Shop now:** [https://www.desertcart.jp/products/245418526-uxcell-u-groove-guide-pulley-rail-ball-bearings-6x21x7mm-double](https://www.desertcart.jp/products/245418526-uxcell-u-groove-guide-pulley-rail-ball-bearings-6x21x7mm-double)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-09-28*