---
product_id: 512816780
title: "uxcell #25 Chain Idler Sprocket, 12mm Bore 1/4\" Pitch 20 Tooth Tensioner, Black Oxide Finish C45 Carbon Steel with Insert Double Bearing for ISO 04C Chains"
brand: "uxcell"
price: "€ 27.74"
currency: EUR
in_stock: true
url: https://www.desertcart.fi/products/512816780-uxcell-25-chain-idler-sprocket-12mm-bore-1-4-pitch
store_origin: FI
region: Finland
---

# Heat-treated C45 carbon steel for max wear resistance 20 precision teeth for smooth chain engagement Double sealed 6901Z bearings for durability uxcell #25 Chain Idler Sprocket, 12mm Bore 1/4" Pitch 20 Tooth Tensioner, Black Oxide Finish C45 Carbon Steel with Insert Double Bearing for ISO 04C Chains

**Brand:** uxcell
**Price:** € 27.74
**Availability:** ✅ In Stock

## Summary

> ⚙️ Elevate your machine’s rhythm with precision and power!

## Quick Answers

- **What is this?** uxcell #25 Chain Idler Sprocket, 12mm Bore 1/4" Pitch 20 Tooth Tensioner, Black Oxide Finish C45 Carbon Steel with Insert Double Bearing for ISO 04C Chains by uxcell
- **How much does it cost?** € 27.74 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/512816780-uxcell-25-chain-idler-sprocket-12mm-bore-1-4-pitch)

## 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

- • **Perfect Fit:** 12mm bore and 1/4" pitch tailored for ISO 04C chains and standard machinery
- • **Built to Last:** Heat-treated C45 carbon steel ensures exceptional hardness and longevity
- • **Smooth Rotation:** Double sealed 6901Z bearings guarantee frictionless, maintenance-free operation
- • **Versatile Application:** Ideal for milling, drilling, and diverse industrial transmission setups
- • **Precision Engineered Teeth:** 20 teeth designed for flawless chain grip and minimal slippage

## Overview

The uxcell #25 Chain Idler Sprocket features 20 heat-treated teeth crafted from durable C45 carbon steel, paired with double sealed 6901Z bearings for smooth, long-lasting rotation. Designed with a 12mm bore and 1/4" pitch, it fits ISO 04C chains perfectly, making it an essential component for milling, drilling, and other industrial machinery requiring reliable chain tensioning.

## Description

Full description not available

## Features

- Specifications: Number of Teeth: 20; Bearing Model: 6901Z; Outside Diameter: 43mm / 1.69-inch; Bump Width: 6mm / 0.24-inch; Total Width: 15mm / 0.59-inch; Bore Diameter: 12mm / 0.47-inch; Pitch: 1/4-inch / 6.35mm; Tooth Width: 3mm / 0.12-inch; 1 x Idler Sprocket
- Idler sprocket is a flat sprocket, with double sealed bearing that allows the sprocket to rotate freely. Idler sprockets are normally mounted in a fixed position on a fixed shaft.
- The product is made of c45 carbon steel, the tooth part high temperature quenching heat treatment, high hardness, wear resistance, long service life, easy to use.
- The Idler sprocket should not rotate at a greater speed than is allowable for drive sprockets of the same size. Every roller chain idler sprocket comes with strong teeth that can latch onto the chain. It is suggested that idler sprockets have at least three teeth in mesh with the chain.
- Widely used in milling machine, drilling machine or other machinery transmission occasions.

## Images

![uxcell #25 Chain Idler Sprocket, 12mm Bore 1/4" Pitch 20 Tooth Tensioner, Black Oxide Finish C45 Carbon Steel with Insert Double Bearing for ISO 04C Chains - Image 1](https://m.media-amazon.com/images/I/71J0VZ-QNiL.jpg)
![uxcell #25 Chain Idler Sprocket, 12mm Bore 1/4" Pitch 20 Tooth Tensioner, Black Oxide Finish C45 Carbon Steel with Insert Double Bearing for ISO 04C Chains - Image 2](https://m.media-amazon.com/images/I/7102wwz9SzL.jpg)
![uxcell #25 Chain Idler Sprocket, 12mm Bore 1/4" Pitch 20 Tooth Tensioner, Black Oxide Finish C45 Carbon Steel with Insert Double Bearing for ISO 04C Chains - Image 3](https://m.media-amazon.com/images/I/71OIob73n5L.jpg)
![uxcell #25 Chain Idler Sprocket, 12mm Bore 1/4" Pitch 20 Tooth Tensioner, Black Oxide Finish C45 Carbon Steel with Insert Double Bearing for ISO 04C Chains - Image 4](https://m.media-amazon.com/images/I/71QNoOyPTNL.jpg)
![uxcell #25 Chain Idler Sprocket, 12mm Bore 1/4" Pitch 20 Tooth Tensioner, Black Oxide Finish C45 Carbon Steel with Insert Double Bearing for ISO 04C Chains - Image 5](https://m.media-amazon.com/images/I/61jd54n5HNL.jpg)

## Available Options

This product comes in different **Size** options.

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**Shop now:** [https://www.desertcart.fi/products/512816780-uxcell-25-chain-idler-sprocket-12mm-bore-1-4-pitch](https://www.desertcart.fi/products/512816780-uxcell-25-chain-idler-sprocket-12mm-bore-1-4-pitch)

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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-02-28*