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TSUBAKI Size 40 Fixed-Bore Roller Chain Sprocket, 21 Teeth, 5/8 in Bore, Steel - Size 40 Fixed-Bore Roller Chain Sprockets
TSUBAKISize 40 Fixed-Bore Roller Chain Sprockets

TSUBAKI Size 40 Fixed-Bore Roller Chain Sprocket, 21 Teeth, 5/8 in Bore, Steel

The TSUBAKI Single Strand Sprocket: 40 is a Size 40 fixed-bore roller chain sprocket designed for 1/2 in chain pitch, with 21 teeth and a 5/8 in bore diameter, made of steel (MPN 40B21FJ). 3G Electric interprets your…

SKU 3G-OTH-123835

Brand
TSUBAKI
Item
Size 40 Fixed-Bore Roller Chain Sprocket, 21 Teeth, 5/8 in Bore, Steel
Part Number
40B21FJ
Category
Size 40 Fixed-Bore Roller Chain Sprockets
Available to Order
Also known as:40B21FJTSUBAKI
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Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
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Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

TSUBAKI
Manufacturer Part Number
40B21FJ
Type
For 1/2 in Chain Pitch, Steel
Teeth
21
Bore Dia
5/8 in

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TSUBAKI Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The TSUBAKI Single Strand Sprocket: 40 is a Size 40 fixed-bore roller chain sprocket designed for 1/2 in chain pitch, with 21 teeth and a 5/8 in bore diameter, made of steel (MPN 40B21FJ). 3G Electric interprets your demand for this genuine industrial component, sourcing it across 14 departments—including power transmission—with specialist depth in combustion, pumps, and controls to ensure you get the right answer, not just a catalog.

Frequently Asked Questions

What is the TSUBAKI 40B21FJ sprocket used for?

The TSUBAKI 40B21FJ is a single strand sprocket used in roller chain drives to transmit rotary motion between shafts. It is commonly applied in conveyors, packaging machinery, and industrial power transmission systems where a 1/2 inch pitch chain and 21-tooth drive are required.

What are the specifications of the TSUBAKI 40B21FJ sprocket?

The TSUBAKI 40B21FJ is a size 40 fixed-bore sprocket with 21 teeth, a 5/8 inch bore diameter, and a 1/2 inch chain pitch. It is made of steel and is designed for single strand roller chain applications. The manufacturer part number is 40B21FJ.

Where to buy TSUBAKI 40B21FJ sprockets worldwide?

You can source TSUBAKI 40B21FJ sprockets through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time on this TSUBAKI part.

How to select the correct TSUBAKI sprocket for a 1/2 inch chain?

To select the correct TSUBAKI sprocket, match the chain pitch (1/2 inch for size 40), number of teeth (21 for this model), and bore diameter (5/8 inch) to your shaft size. Ensure the sprocket is steel for durability. 3G Electric can help confirm compatibility for your drive system.

Used in

Common applications for TSUBAKI
Material handling conveyors — TSUBAKI C2080H connecting links for heavy-duty chain systems
Packaging machinery — TSUBAKI size 60 roller chains with 60NEPCL connecting links for coated chain applications
Automotive assembly lines — TSUBAKI 80NPSK1CL attachment links for positioning fixtures on single-strand chains
Food processing equipment — TSUBAKI nickel-plated chains and sprockets (e.g., 50BTL48) for washdown environments
General power transmission — TSUBAKI PL1G keyless bushings for shaft mounting without keyways in drive systems
Conveyor drive systems — TSUBAKI 40BTL24 sprockets for size 40 chain in light-to-medium load applications
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TSUBAKI Products

3G Electric supplies TSUBAKI size 40 fixed-bore roller chain sprockets. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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This TSUBAKI sprocket is a size 40 fixed-bore type for 1/2 in pitch roller chain. It has 17 teeth and a 3/4 in bore diameter, made of steel. Used in power transmission systems such as conveyors and industrial machinery
TSUBAKI
This TSUBAKI sprocket is a size 40 fixed-bore type for 1/2 in pitch roller chain. It has 17 teeth and a 3/4 in bore diameter, made of steel. Used in power transmission systems such as conveyors and industrial machinery

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