Jeremywell #40 Roller Chain Idler Sprocket, 18 Tooth, 5/8" Bore, Hardened Steel
- Sprocket Size: 40BB18H-5/8, 18 teeth, 0.50” pitch, 5/8” bore, designed for ANSI #40 roller chain. Idler sprocket, provides reliable chain engagement for industrial power-transmission systems.
- Bore & Bearing: Features a 5/8” bore for free rotation on a compatible shaft or mounting bolt. Verify the shaft diameter, bearing specifications, and mounting clearance before ordering.
- Durable Construction: Manufactured from AISI 1045 medium-carbon steel, providing a practical balance of strength, toughness, and durability for general industrial power-transmission applications. The black oxide finish helps protect the sprocket against rust and corrosion during handling and normal operating conditions.
- Dimensions: Outside diameter: 3.14”; L.T.B.: 0.46”. Review all dimensions against your existing sprocket and available equipment clearance.
- Compatibility & Package: Suitable for machinery and power-transmission systems using ANSI #40 roller chain. Package includes 1 sprocket.
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AUD |
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Category |
Power Transmission Products , Roller Chain Sprockets |
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Estimated shipping
Select a product to estimate shipping.Jeremywell #40 Roller Chain Idler Sprocket 5/8" Bore Hardened 18 Tooth
Sprockets are durable toothed wheels that are used in combination with roller chains to power all types of machinery. As the sprocket spins, the teeth grab onto the chain and move other parts that interlock with the chain.
Using the right sprocket is just as important as choosing the right chain. If both pieces don’t complement each other, the system will not operate correctly. At Jeremywell , we offer a wide selection of high quality standard roller chain sprockets. Our sprockets are engineered to perform well under pressure and are long-lasting. There are a broad selection of factors to keep in mind when selecting replacement sprockets, a simple way to determine the right sprocket is by considering the following factors:
The type of chain you would need the sprocket for.
Idler Sprocket
Type A (Flat sprocket, no hubs)
Type B (1 Hub)
Type C (2 Hubs)
Number of Teeth needed.
Sprocket bore size.
#40 IDLER SPROCKET SPECIFICATIONS
Product details



| Main Specification | |
|---|---|
| Manufacturer | Jeremywell |
| Brand | Jeremywell |
| Item Weight | 9.6 ounces |
| Product information | |
| Package Dimensions | 3.62 x 3.39 x 1.06 inches |
| Item model number | 40BB18H |
| Others | |
| Date First Available | 2020 or July 21 |
| Product Type | Roller Chain Sprockets |
Shipping & Delivery
At GofinchKart Australia, we aim to deliver your order quickly and safely.
Domestic Shipping (Australia):
Orders are typically delivered within 3–7 business days.
International Shipping:
Estimated delivery time is 12–26 business days, depending on the destination and customs processing.
Once your order has been dispatched, you will receive a tracking number. Delivery times may vary during public holidays or due to unforeseen delays.





