---
product_id: 50488142
title: "2PCS 6805 Hybrid Ceramic Bearing BB Hubs 25x37x7mm 6805-2RS Rust-Resistant G5 Si₃N₄ Ceramic Balls, Stainless Steel ABEC-3"
brand: "hmmbw"
price: "$53.73"
currency: USD
in_stock: true
reviews_count: 6
category: "Hmmbw"
url: https://www.desertcart.us/products/50488142-2pcs-6805-hybrid-ceramic-bearing-bb-hubs-25x37x7mm-6805-2rs
store_origin: US
region: United States of America
---

# Si3N4 ceramic balls for ultra-smooth spin 25x37x7mm precision size Rust-resistant stainless steel 2PCS 6805 Hybrid Ceramic Bearing BB Hubs 25x37x7mm 6805-2RS Rust-Resistant G5 Si₃N₄ Ceramic Balls, Stainless Steel ABEC-3

**Brand:** hmmbw
**Price:** $53.73
**Availability:** ✅ In Stock

## Summary

> 🚴‍♂️ Upgrade your ride with hybrid ceramic precision—because every revolution counts!

## Quick Answers

- **What is this?** 2PCS 6805 Hybrid Ceramic Bearing BB Hubs 25x37x7mm 6805-2RS Rust-Resistant G5 Si₃N₄ Ceramic Balls, Stainless Steel ABEC-3 by hmmbw
- **How much does it cost?** $53.73 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/50488142-2pcs-6805-hybrid-ceramic-bearing-bb-hubs-25x37x7mm-6805-2rs)

## 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

- • **Hybrid Ceramic Power:** Si3N4 ceramic balls reduce friction and heat, delivering faster spins and longer-lasting performance.
- • **Easy Installation Hack:** Freeze before install to shrink bearings for a perfect, tool-friendly fit—pro tip for the savvy cyclist.
- • **ABEC-3 Certified Quality:** Industry-standard precision rating guarantees reliable, consistent bearing performance every time.
- • **Rust-Resistant Durability:** Stainless steel races and nylon cages protect against corrosion, keeping your ride smooth in any weather.
- • **Precision Fit, Effortless Ride:** Exact 25x37x7mm dimensions ensure seamless hub integration for a flawless cycling experience.

## Overview

These 2PCS 6805 Hybrid Ceramic Bearings feature 25x37x7mm dimensions with rust-resistant stainless steel races and black Si3N4 ceramic balls. Rated ABEC-3 for precision, they offer superior smoothness and durability for bicycle hubs, ensuring enhanced performance and longevity in all riding conditions.

## Description

New Hybrid 6805 Ceramic Bearing ABEC-3 BB Hubs 25x37x7mm 6805-2RS Si3N4 Ceramic Ball Bearing 2PCS Si3N4 Balls, Rust-Resistant

Review: Good - Excelente producto
Review: Installed easily and working perfectly so far. - Had no issue installing these in the front hub of my bike. Redneck tip: Put the bag with both bearings in the freezer for 24 hours before installation. The cold will contract the bearing and they drop in to about 75% depth without tools. You can then use a 1-1/16 (or similar) socket and rubber mallet to finish seating them. Just make sure they go in EVENLY and that whatever you are driving them in with contacts the OUTER race of the bearing.

## Features

- Dimensions: 25mm(ID.) x 37mm(OD.) x 7mm(T.)
- Hybrid 6805 Si3N4 Ceramic Bearing for Bicycle
- Type: Deep groove radial ball bearings
- Balls Material: Black Si3N4 Ceramic
- Cage: Nylon Cage / Rings: Steel ABEC-3

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B074YL61KD |
| Bearing Number | ABEC 3 BB |
| Bearing Type | Ball Bearing |
| Best Sellers Rank | #141,693 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #791 in Deep-Groove Ball Bearings |
| Brand | HMMBW |
| Brand Name | HMMBW |
| Compatible Lubricant | Grease |
| Customer Reviews | 4.8 out of 5 stars 35 Reviews |
| Item Dimensions | 3.94 x 3.94 x 3.94 inches |
| Item Thickness | 7 millimeters |
| Item Weight | 31 g |
| Item dimensions L x W x H | 3.94 x 3.94 x 3.94 inches |
| Manufacturer | Shanghai |
| Material | Si3N4 Balls, Stainless Steel |
| Material Type | Si3N4 Balls, Stainless Steel |
| Model | 6805-2RS |
| Number of Items | 2 |
| Outside Diameter | 6.8 centimeters |
| Part Number | 6805-2RS |
| Specification Met | ABEC 3 |
| UPC | 711202205239 |

## Product Details

- **Bearing Number:** ABEC 3 BB
- **Brand:** HMMBW
- **Item Weight:** 31 Grams
- **Item dimensions L x W x H:** 3.94 x 3.94 x 3.94 inches
- **Material:** Si3N4+Bearing Steel

## Images

![2PCS 6805 Hybrid Ceramic Bearing BB Hubs 25x37x7mm 6805-2RS Rust-Resistant G5 Si₃N₄ Ceramic Balls, Stainless Steel ABEC-3 - Image 1](https://m.media-amazon.com/images/I/51JsLaIJHVL.jpg)
![2PCS 6805 Hybrid Ceramic Bearing BB Hubs 25x37x7mm 6805-2RS Rust-Resistant G5 Si₃N₄ Ceramic Balls, Stainless Steel ABEC-3 - Image 2](https://m.media-amazon.com/images/I/713SjwWvE5L.jpg)
![2PCS 6805 Hybrid Ceramic Bearing BB Hubs 25x37x7mm 6805-2RS Rust-Resistant G5 Si₃N₄ Ceramic Balls, Stainless Steel ABEC-3 - Image 3](https://m.media-amazon.com/images/I/61o3mFrDwWL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good
*by J***S on November 15, 2025*

Excelente producto

### ⭐⭐⭐⭐⭐ Installed easily and working perfectly so far.
*by J***. on June 17, 2020*

Had no issue installing these in the front hub of my bike. Redneck tip: Put the bag with both bearings in the freezer for 24 hours before installation. The cold will contract the bearing and they drop in to about 75% depth without tools. You can then use a 1-1/16 (or similar) socket and rubber mallet to finish seating them. Just make sure they go in EVENLY and that whatever you are driving them in with contacts the OUTER race of the bearing.

### ⭐⭐⭐⭐⭐ easy set up install
*by S***E on October 11, 2022*

as described

## Frequently Bought Together

- 2PCS Hybrid 6805 Ceramic Bearing ABEC-3 BB Hubs 25x37x7mm 6805-2RS Si3N4 Ceramic Ball Bearing
- uxcell 683ZZ Ball Bearing 3mm x 7mm x 3mm Double Shielded Deep Groove Bearings, Carbon Steel 20pcs
- uxcell 4mm Inner Dia H12*D10 Rigid Flange Coupling Motor Guide Shaft Coupler Motor Connector for DIY Parts

---

## 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/50488142-2pcs-6805-hybrid-ceramic-bearing-bb-hubs-25x37x7mm-6805-2rs](https://www.desertcart.us/products/50488142-2pcs-6805-hybrid-ceramic-bearing-bb-hubs-25x37x7mm-6805-2rs)

---

*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-09-03*