---
product_id: 122352392
title: "25pcs 1/4 Inch 6.35 Si3N4 Silicon Nitride Ceramic Bearing Balls G5"
brand: "findpro"
price: "€ 29.39"
currency: EUR
in_stock: true
reviews_count: 7
category: "Findpro"
url: https://www.desertcart.gr/products/122352392-25pcs-1-4-inch-6-35-si3n4-silicon-nitride-ceramic
store_origin: GR
region: Greece
---

# High-grade G5 Silicon Nitride Precision 6.35mm diameter Pack of 25 for bulk value 25pcs 1/4 Inch 6.35 Si3N4 Silicon Nitride Ceramic Bearing Balls G5

**Brand:** findpro
**Price:** € 29.39
**Availability:** ✅ In Stock

## Summary

> ⚡ Roll smoother, last longer, upgrade smarter!

## Quick Answers

- **What is this?** 25pcs 1/4 Inch 6.35 Si3N4 Silicon Nitride Ceramic Bearing Balls G5 by findpro
- **How much does it cost?** € 29.39 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/122352392-25pcs-1-4-inch-6-35-si3n4-silicon-nitride-ceramic)

## Best For

- findpro enthusiasts

## Why This Product

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

## Key Features

- • **Smooth Operator:** Ultra-smooth rolling reduces friction, enhancing efficiency and giving you that psychological edge.
- • **Bulk Upgrade Value:** 25-piece pack offers unbeatable value—upgrade multiple components or keep spares on hand.
- • **Next-Level Durability:** Crafted from premium G5-grade Si3N4 ceramic for superior wear resistance and longer lifespan than steel.
- • **Precision Perfect Fit:** True 1/4 inch (6.35mm) diameter ensures seamless compatibility with high-performance bearings.
- • **Versatile Performance:** Ideal for cycling hubs, bottom brackets, and industrial applications demanding precision and reliability.

## Overview

This 25-pack of 6.35mm (1/4 inch) G5-grade Silicon Nitride (Si3N4) ceramic bearing balls delivers precision, durability, and smooth performance. Engineered for cycling and industrial uses, these ceramic balls outperform steel with superior wear resistance and reduced friction, making them a cost-effective upgrade for professionals and enthusiasts alike.

## Description

25pcs 1/4 Inch 6.35 Si3N4 Silicon Nitride Ceramic Bearing Balls G5: desertcart.com: Industrial & Scientific

Review: True to size, smooth rolling - These bearings measured true to size with a digital micrometer. I used them to replace the balls in a Dura-Ace 7400 rear hub and bottom bracket. Are they truly smoother than equivalent steel? Maybe, maybe not, but the psychological advantage is there and it's a cheap upgrade when repacking. Tigerdog sez: let's roll!
Review: Works great as a substitute for SIC pearls. - I use them in a banger, and it works great, no need to use the same amount of money on 1 sic pearl when I can get 25 of these.

## Features

- Item: 25pcs Ceramic Bearing Ball Si3N4 G5 Dia 6.35mm 1/4''
- Material: Silicone Nitride /Si3N4
- Grade: G5
- Dia/Diameter: 6.35mm 1/4''
- Package: 25pcs

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07D34VMTC |
| Bearing Type | Ball Bearing |
| Best Sellers Rank | #708,534 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #5,953 in Deep-Groove Ball Bearings |
| Brand | findpro |
| Brand Name | findpro |
| Compatible Lubricant | Grease |
| Customer Reviews | 4.6 out of 5 stars 17 Reviews |
| Item Dimensions | 3.94 x 0.39 x 5.91 inches |
| Item dimensions L x W x H | 3.94 x 0.39 x 5.91 inches |
| Manufacturer | Shanghai |
| Material | Si3N4;Silicon Nitride |
| Material Type | Si3N4;Silicon Nitride |
| Model | Si3N4-635-25 |
| Outside Diameter | 6.35 Millimeters |
| Part Number | Si3N4-635-25 |

## Images

![25pcs 1/4 Inch 6.35 Si3N4 Silicon Nitride Ceramic Bearing Balls G5 - Image 1](https://m.media-amazon.com/images/I/51Zr7Bt0CHL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ True to size, smooth rolling
*by T***G on May 18, 2025*

These bearings measured true to size with a digital micrometer. I used them to replace the balls in a Dura-Ace 7400 rear hub and bottom bracket. Are they truly smoother than equivalent steel? Maybe, maybe not, but the psychological advantage is there and it's a cheap upgrade when repacking. Tigerdog sez: let's roll!

### ⭐⭐⭐⭐⭐ Works great as a substitute for SIC pearls.
*by A***. on January 4, 2024*

I use them in a banger, and it works great, no need to use the same amount of money on 1 sic pearl when I can get 25 of these.

### ⭐⭐⭐⭐⭐ Felt the difference first 50 feet.
*by J***S on June 11, 2023*

Felt the difference first 50 feet.

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**Shop now:** [https://www.desertcart.gr/products/122352392-25pcs-1-4-inch-6-35-si3n4-silicon-nitride-ceramic](https://www.desertcart.gr/products/122352392-25pcs-1-4-inch-6-35-si3n4-silicon-nitride-ceramic)

---

*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-07-22*