---
product_id: 533497628
title: "#40 Roller Chain Sprocket B Type 1/2\" Bore Rust Prevention Hardened 10 Tooth"
brand: "rhking"
price: "AR$68770"
currency: ARS
in_stock: true
reviews_count: 8
category: "Rhking"
url: https://www.desertcart.com.ar/products/533497628-40-roller-chain-sprocket-b-type-1-2-bore-rust
store_origin: AR
region: Argentina
---

# 1/2" bore with dual setscrews for secure fit 10 hardened teeth for precision power transfer Rust & corrosion resistant blackened finish #40 Roller Chain Sprocket B Type 1/2" Bore Rust Prevention Hardened 10 Tooth

**Brand:** rhking
**Price:** AR$68770
**Availability:** ✅ In Stock

## Summary

> ⚙️ Harden your drive, not your schedule!

## Quick Answers

- **What is this?** #40 Roller Chain Sprocket B Type 1/2" Bore Rust Prevention Hardened 10 Tooth by rhking
- **How much does it cost?** AR$68770 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/533497628-40-roller-chain-sprocket-b-type-1-2-bore-rust)

## Best For

- rhking enthusiasts

## Why This Product

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

## Key Features

- • **Maintenance-Free Operation:** No lubrication needed—designed for smooth, stable operation with minimal upkeep.
- • **Precision Engineered Teeth:** 10 hardened teeth (HRC38-42) ensure durable, wear-resistant performance for long-lasting reliability.
- • **Secure Dual Setscrew Design:** Two setscrews at 90° lock the sprocket firmly in place, eliminating slippage and maintenance hassles.
- • **Rust-Resistant Blackened Finish:** Advanced surface treatment protects against corrosion, keeping your sprocket looking and working like new.
- • **Perfect Fit for #40 Roller Chains:** Optimized 1/2" bore and 0.125" keyway ensure seamless compatibility with standard industrial and DIY applications.

## Overview

The RHKING #40 Roller Chain Sprocket features 10 hardened teeth made from AISI 1045 medium carbon steel with high-temperature quenching for superior wear resistance. Its rust-preventive blackened finish and dual setscrew design ensure a secure, maintenance-free fit on 1/2" bore shafts, making it an ideal, durable choice for industrial and DIY mechanical power transmission needs.

## Description

RHKING #40 Roller Chain Sprocket B Type 1/2" Bore Rust Prevention Hardened 10 Tooth: desertcart.com: Industrial & Scientific

Review: Exactly what we needed. - The sprocket worked great for the electric can crusher my husband is making. It was fast shipping and great packaging.
Review: Good replacement sprocket - The sprocket that came with my motor kit unscrewed itself and fell off. This is a perfect replacement. It fit the shaft perfectly with the included woodruff key and attached to the shaft properly with the included hex nut. I would recommend using a thread lock compound on the motor shaft to keep the nut in place. This is a 9 tooth sprocket, and I used it to replace an 11 tooth sprocket. This necessitated resizing the chain, but it resulted in more low end power delivered to the rear wheel through the existing #415 chain.

## Features

- ✅Size :Roller Chain Sprocket 12.7mm (1/2") Pitch,10 Teeth,1/2" Bore Diameter, 0.125" Keyway with 2 Setscrews at 90 degrees,B Type.
- ✅Material:Sprocket is made of AISI 1045 Medium Carbon Steel, gear part of high temperature quenching heat treatment, high hardness, Harden Teeth at HRC38-42,wear resistance.
- ✅Feature:Sprocket tooth surface hardening treatment, sprocket overall blackening treatment, rust, corrosion resistance.
- ✅Use: Sprocket does not need lubrication, easy maintenance, can maintain good stable operation for a long time.
- ✅Package Content :1 x Roller Chain Sprocket (included 2pcs set screw).

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BV1431W2 |
| Best Sellers Rank | #10,809 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1 in Mechanical Roller Chain Sprockets |
| Date First Available | February 6, 2023 |
| Item Weight | 5.6 ounces |
| Item model number | RHKING |
| Manufacturer | RHKING |
| Package Dimensions | 3.6 x 3.5 x 1.3 inches |

## Images

![#40 Roller Chain Sprocket B Type 1/2" Bore Rust Prevention Hardened 10 Tooth - Image 1](https://m.media-amazon.com/images/I/41O2MN5i1AL.jpg)
![#40 Roller Chain Sprocket B Type 1/2" Bore Rust Prevention Hardened 10 Tooth - Image 2](https://m.media-amazon.com/images/I/61ZfpHPBBHL.jpg)
![#40 Roller Chain Sprocket B Type 1/2" Bore Rust Prevention Hardened 10 Tooth - Image 3](https://m.media-amazon.com/images/I/51-pMzkwCbL.jpg)
![#40 Roller Chain Sprocket B Type 1/2" Bore Rust Prevention Hardened 10 Tooth - Image 4](https://m.media-amazon.com/images/I/61hlnnnYTkL.jpg)
![#40 Roller Chain Sprocket B Type 1/2" Bore Rust Prevention Hardened 10 Tooth - Image 5](https://m.media-amazon.com/images/I/51XxBEStF+L.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Exactly what we needed.
*by L***K on November 12, 2025*

The sprocket worked great for the electric can crusher my husband is making. It was fast shipping and great packaging.

### ⭐⭐⭐⭐⭐ Good replacement sprocket
*by R***L on December 7, 2025*

The sprocket that came with my motor kit unscrewed itself and fell off. This is a perfect replacement. It fit the shaft perfectly with the included woodruff key and attached to the shaft properly with the included hex nut. I would recommend using a thread lock compound on the motor shaft to keep the nut in place. This is a 9 tooth sprocket, and I used it to replace an 11 tooth sprocket. This necessitated resizing the chain, but it resulted in more low end power delivered to the rear wheel through the existing #415 chain.

### ⭐⭐⭐⭐⭐ Good
*by D***Y on February 4, 2026*

Held up to 5.5 HP with converter clutch well. Still in 1 piece

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**Shop now:** [https://www.desertcart.com.ar/products/533497628-40-roller-chain-sprocket-b-type-1-2-bore-rust](https://www.desertcart.com.ar/products/533497628-40-roller-chain-sprocket-b-type-1-2-bore-rust)

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*Product available on Desertcart Argentina*
*Store origin: AR*
*Last updated: 2026-03-13*