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CHR #40 Roller Chain Sprocket, 30 Tooth, 1/2" (12.7mm) Pitch, 1" (25.4mm) Bore, 1/4" (6.38mm) Keyway, Carbon Steel, B-Type Hub, 5.04" (128mm) 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 21, 2026 1:58 AM · 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 sits right around what this item typically fetches.
- 🏷️A 22% cut from the official retail price adds further appeal.
- 📉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: 40B30, 30 Teeth, 1/2" (12.7mm) Pitch (#40), 1" (25.4mm) Bore, 1/4" (6.38mm) Keyway, B-Type Hub, compatible with ANSI #40 roller chains.
✓✅ Material: Made of carbon steel for strength and durability, ensuring consistent chain performance with reduced wear and downtime.
✓✅ Dimensions: 5.039" (128mm) Outer Diameter, 3.268" (83mm) Hub Diameter, 1" (25.4mm) Total Thickness, 0.28" (7.1mm) Tooth Thickness, 1" (25.42mm) Bolt Circle.
✓✅ Compatibility: Ideal for use in mechanical power transmission, manufacturing, milling, and industrial drive systems.
✓✅ Mounting: Fixed-position installation; ensure at least 3 sprocket teeth engage the chain during operation for optimal performance.
⚙️ Specifications
4.09 x 1.97 x 1.22 inches
3.2 ounces
CHR - PRECISION IN DETAIL
B0D87BXWDS
Package Dimensions
5.87 x 5.28 x 2.52 inches
Item Weight
2.79 pounds
Manufacturer
CHR - PRECISION IN DETAIL
ASIN
B0D87BXWDS
Date First Available
June 27, 2024
Best Sellers Rank
See Top 100 in Industrial & Scientific
5.87 x 5.28 x 2.52 inches
2.79 pounds
Ships From
Amazon
Sold By
CHR Precision In Detail
