---
product_id: 48541939
title: "2PCS 6903 Ceramic Bearing 17x30x7mm 6903-2RS Si3N4 Ceramic Ball Bearing ABEC-5"
brand: "hmmbw"
price: "₱2746"
currency: PHP
in_stock: true
url: https://www.desertcart.ph/products/48541939-2pcs-6903-ceramic-bearing-17x30x7mm-6903-2rs-si3n4-ceramic-ball
store_origin: PH
region: Philippines
---

# Precision ABEC-3 tolerance ±0.005mm Hybrid ceramic ball bearing tech Durable steel + Si3N4 ceramic combo 2PCS 6903 Ceramic Bearing 17x30x7mm 6903-2RS Si3N4 Ceramic Ball Bearing ABEC-5

**Brand:** hmmbw
**Price:** ₱2746
**Availability:** ✅ In Stock

## Summary

> ⚙️ Elevate your ride with precision that speaks volumes

## Quick Answers

- **What is this?** 2PCS 6903 Ceramic Bearing 17x30x7mm 6903-2RS Si3N4 Ceramic Ball Bearing ABEC-5 by hmmbw
- **How much does it cost?** ₱2746 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ph](https://www.desertcart.ph/products/48541939-2pcs-6903-ceramic-bearing-17x30x7mm-6903-2rs-si3n4-ceramic-ball)

## Best For

- hmmbw enthusiasts

## Why This Product

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

## Key Features

- • **Ready to Roll:** Comes pre-lubricated with premium grease for immediate, hassle-free installation.
- • **Precision Perfected:** ABEC-3 rated with ±0.005mm runout ensures smooth, reliable performance every time.
- • **Hybrid Ceramic Power:** Steel races paired with Si3N4 ceramic balls for ultra-low friction and enhanced durability.
- • **Slick & Silent Operation:** PA66 polymer cage reduces friction and noise, elevating your ride experience.
- • **Consistent Quality, Random Style:** Seal cap colors vary but all meet the same high-performance standards—stand out subtly.

## Overview

These 2PCS 6903 hybrid ceramic ball bearings (17x30x7mm) combine steel races with Si3N4 ceramic balls, delivering ABEC-3 precision and low friction thanks to a PA66 polymer cage and premium grease lubrication—engineered for long-lasting, smooth cycling performance.

## Description

Product Note:  Seal cap colors are randomly assorted—each variant meets the same high-performance standards, guaranteeing consistent quality across all units. Package Includes: 2 × 6903 ABEC-3 Precision Hybrid Bearings (dimensions: 17x30x7mm).  Engineered for reliability, reduced friction, and long-term durability, these bearings are ideal for precision applications.

## Features

- ✔Type: Hybrid ceramic ball bearing
- ✔ Material: Steel races + Si₃N₄ ceramic balls
- ✔ Precision: ABEC-3 rating (±0.005mm runout)
- ✔ Cage: PA66 polymer (low friction)
- ✔ Lubrication: Premium grease included

## Product Details

- **Brand:** HMMBW
- **Material:** Si3N4+Bearing Steel
- **Item dimensions L x W x H:** 1.18 x 1.18 x 0.28 inches
- **Item Weight:** 20 Grams
- **Bearing Number:** 6903 2RS

## Images

![2PCS 6903 Ceramic Bearing 17x30x7mm 6903-2RS Si3N4 Ceramic Ball Bearing ABEC-5 - Image 1](https://m.media-amazon.com/images/I/71Mty77Ee2L.jpg)
![2PCS 6903 Ceramic Bearing 17x30x7mm 6903-2RS Si3N4 Ceramic Ball Bearing ABEC-5 - Image 2](https://m.media-amazon.com/images/I/711P0gQNtgL.jpg)
![2PCS 6903 Ceramic Bearing 17x30x7mm 6903-2RS Si3N4 Ceramic Ball Bearing ABEC-5 - Image 3](https://m.media-amazon.com/images/I/71sKq0yunKL.jpg)

## Questions & Answers

**Q: Does it come in pairs?**
A: 2pcs = 2 pieces.  Yes.  Two.

## Frequently Bought Together

- 2PCS 6903 Ceramic Bearing 17x30x7mm 6903-2RS Si3N4 Ceramic Ball Bearing ABEC-5
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**Shop now:** [https://www.desertcart.ph/products/48541939-2pcs-6903-ceramic-bearing-17x30x7mm-6903-2rs-si3n4-ceramic-ball](https://www.desertcart.ph/products/48541939-2pcs-6903-ceramic-bearing-17x30x7mm-6903-2rs-si3n4-ceramic-ball)

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*Product available on Desertcart Philippines*
*Store origin: PH*
*Last updated: 2026-01-22*