Find any Amazon.com product's deals and best prices with our free Amazon deal finder and price tracker. Simply paste the product link (URL) or search by name in the box above. You'll get full product information, Deal Score, and all current deals. Shop smarter with the best Amazon deals finder in the USA.
x
Sorry, Something went wrong!
CHR #40 Roller Chain, 21 Tooth, 1/2" Pitch, 3/4" Bore, 0.188" Keyway, Carbon Steel, B-Type Hub, 3.622" OD - ISO 9001-2000 Certified
✅ In stock
F
Grade
Analysis Confidence
100%
⚠️ Price may have changed. Last updated 24+ hours ago — confirm on Amazon.
Check Deal at Amazon
Price verified Sep 18, 2026 5:17 PM · Prices & availability subject to change
Is This a Good Price on Amazon?
💤 Not a Deal- 💤Verdict: Not a Deal. Price is at or above historical norms. Best to wait for a sale.
- 💰The current price is slightly above the going rate for this product — worth watching for a drop.
- 🏷️The retail sticker price has been slashed by 57% — a steep markdown from the official listing.
- 📉Going back roughly eight months, a more competitive price has not appeared — this stands out as a strong value by recent standards.
- ➡️Pricing has held fairly steady, with no strong push in either direction.
How We Scored This Deal
Price Competitiveness
0/28
Recent Value
0/22
Market Standing
0/20
Deal Strength
13/20
Momentum
4/10
📝 Product Overview
🏪 Sold by
CHR Precision In Detail
📦 Fulfillment
Fulfilled by Amazon
🚚 Shipping
Free Shipping
Product Details
✓✅Sprocket Size: 40B21, 21 Teeth, 1/2" (12.7mm) Pitch (#40), 3/4" (19.1mm) Bore Diameter, 0.188" (4.78mm) Keyway, B-Type Hub, fits standard ANSI #40 roller chains.
✓✅Material: Carbon steel body, engineered for strength and wear resistance; delivers smooth and reliable chain engagement in industrial settings.
✓✅Dimensions: 3.622" (92mm) Outer Diameter (O.D), 2.756" (70mm) Hub Diameter, 1" (25.4mm) Total Thickness, 0.28" (7.11mm) Tooth Thickness, 0.751" (19.08mm) Bolt Circle.
✓✅Compatibility: For use with ANSI #40 roller chains in power transmission, automation, machinery, manufacturing, and mechanical drive systems.
✓✅Mounting: Fixed-position shaft mounting recommended; ensure minimum 3-teeth chain engagement for stable performance.
⚙️ Specifications
5.91 x 3.46 x 2.32 inches
1.72 pounds
CHR - PRECISION IN DETAIL
B0D87GXYJC
Package Dimensions
6.65 x 3.31 x 1.69 inches
Item Weight
1.46 pounds
Manufacturer
CHR - PRECISION IN DETAIL
ASIN
B0D87GXYJC
Date First Available
June 27, 2024
Best Sellers Rank
See Top 100 in Industrial & Scientific
6.65 x 3.31 x 1.69 inches
1.46 pounds
