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#40 Roller Chain Sprocket B Type 1" Bore Rust Prevention Hardened 21 Tooth
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RHKING

#40 Roller Chain Sprocket B Type 1" Bore Rust Prevention Hardened 21 Tooth

✅ In stock
F
Grade
💤 Not a Deal
20.54/100
Current Price
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply to the purchase of this product.
$28.99
Listed $25.99
Analysis Confidence 100%
Check Deal at Amazon
Price verified Sep 23, 2026 8:45 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.
  • 📉No lower price has surfaced in the past twelve months, making this one of the standout deals in recent memory.
  • ➡️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 0.54/20
Deal Strength 16/20
Momentum 4/10

📝 Product Overview

🏪 Sold by RHKING
📦 Fulfillment Fulfilled by Amazon
🚚 Shipping Free Shipping

Product Details

✓✅Size :Roller Chain Sprocket 12.7mm (1/2") Pitch,21 Teeth,1" Bore Diameter, 0.25" 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).

⚙️ Specifications

Hub Style
B Type
Teeth
21
Pitch Size
1/2"
Bore
1"
Keyway
1/4" x 1/8"
‎6.02 x 5.98 x 1.69 inches
‎1.5 pounds
‎RHKING
‎February 6, 2023
Package Dimensions
6.02 x 5.98 x 1.69 inches
Item Weight
1.5 pounds
Manufacturer
RHKING
ASIN
B0BV18DWHH

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