24th Jun 2026, 11:33 PM
21 Tooth Roller Chain Sprocket B Type Hardened Teeth, 25 Chain Sigle Strand 1 /4-Inch Pitch, 17mm Bore Black Oxide C45 Carbon Steel with Fasten Screws for 04C Chain
Price may vary by location, shipping cost, and availability.
43% Off
$7.88
$13.79
Highest: $10.78
Average: $9.41
Lowest: $4.69
Price History Graph
Offer Price Prices
Lowest: -
Average: -
Highest: -
Price History Information
You can check the price history of 21 Tooth Roller Chain Sprocket B Type Hardened Teeth, 25 Chain Sigle Strand 1 /4-Inch Pitch, 17mm Bore Black Oxide C45 Carbon Steel with Fasten Screws for 04C Chain here. This product's current Price in USA is $7.88. The average and highest prices are $9.41 and $10.78 respectively.
| Lowest Ever Price | $4.69 |
|---|---|
| 27th May 2025 | |
| Average Price | $9.41 |
| Based on 1016 days price tracking | |
| Highest Price | $10.78 |
| 19th Nov 2025 | |
Price History of All Variants of 21 Tooth Roller Chain Sprocket B Type...
Current Price in USA
| Price | $7.88 |
|---|---|
| MRP | $13.79 |
| Savings | $5.91 |
| Discount | 42.85% |
Recent Price Drops on 21 Tooth Roller Chain Sprocket B Type Hardened Teeth, 25 Chain Sigle Strand 1 /4-Inch Pitch, 17mm Bore Black Oxide C45 Carbon Steel with Fasten Screws for 04C Chain
Price Drop 24th Feb 2026
$10.78 → $7.88
26.9% drop
Price Drop 17th Oct 2025
$7.88 → $5.52
29.95% drop
Price Drop 8th Jul 2025
$7.25 → $5.08
29.93% drop
Price Drop 1st Jul 2025
$7.88 → $7.25
7.99% drop
Price Drop 26th May 2025
$7.88 → $4.69
40.48% drop
Price Drop 15th May 2024
$10.49 → $7.88
24.88% drop
Price Drop 8th Oct 2023
$9.29 → $8.29
10.76% drop
Product Information
Details
| Product Name | 21 Tooth Roller Chain Sprocket B Type Hardened Teeth, 25 Chain Sigle Strand 1 /4-Inch Pitch, 17mm Bore Black Oxide C45 Carbon Steel with Fasten Screws for 04C Chain |
|---|---|
| Store Product Code | B0C7169S4Y |
| Store Name | amazon.com |
| Rating | 8.6 / 10 |
| Category | Roller Chain Sprockets |
| Product Manufacturer | FOCMKEAS |
| Model Number | 21T/17mm Bore |
Features
- Size&Package1/4" pitch, 21 teeth, 17mm round bore, more size refer to pics. Package include:1 x Chain Sprocket, 2 x Set Screws.
- MaterialMade by c45 carbon steel, the tooth part high frequency quenching heat treatment, high hardness, wear resistance, long service life, easy to use. Fully black oxide coated, corrosion resistance.
- FeatureSingle strand sprocket with one set of teeth around the circumference for applications where a single chain can support the torque and load.
- Type BType B sprocket with a hub project on one side to accommodate various types of bushings to help prevent sprocket from slipping on the shaft.
- ApplicationWidely used in various industrial scenarios, suitable for power transmission in harsh environments.such as milling machine, drilling machine or other machinery transmission occasions.
Images
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Rating and Reviews
8.6 Based on 42 reviews
21 Tooth Roller Chain Sprocket B Type has 8.6 rating out of 10. This average rating is consist of 42 individual ratings. You can rate this product at product review page.
* Predictions is created on based of past prices and trends, it does not guarantee that it will happen. These are just prediction for theoretical information only.