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TSUBAKI Single Strand Sprocket: 40, For 1/2 in Chain Pitch, 1 1/4 in Bore Dia, 21 Teeth - Size 40 Fixed-Bore Roller Chain Sprockets
TSUBAKISize 40 Fixed-Bore Roller Chain Sprockets

TSUBAKI Single Strand Sprocket: 40, For 1/2 in Chain Pitch, 1 1/4 in Bore Dia, 21 Teeth

The TSUBAKI Single Strand Sprocket: 40 is a Size 40 fixed-bore roller chain sprocket, designed for 1/2 in chain pitch. This steel sprocket features 21 teeth and a 1 1/4 in bore diameter (MPN 40B21F-1D).

SKU 3G-OTH-123922

Also listed as: 40B21F1D · 40B21F 1D

Brand
TSUBAKI
Item
Single Strand Sprocket: 40, For 1/2 in Chain Pitch, 1 1/4 in Bore Dia, 21 Teeth
Category
Size 40 Fixed-Bore Roller Chain Sprockets
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

TSUBAKI
Manufacturer Part Number
40B21F-1D
Type
For 1/2 in Chain Pitch, Steel
Teeth
21
Bore Dia
1 1/4 in

Technical Documents

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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. This steel sprocket features 21 teeth and a 1 1/4 in bore diameter (MPN 40B21F-1D).

Frequently Asked Questions

What is the TSUBAKI 40B21F-1D single strand sprocket used for?

The TSUBAKI 40B21F-1D is a size 40 fixed-bore roller chain sprocket used to transmit rotary motion in power transmission systems. It is designed for 1/2 in chain pitch and fits applications in conveyors, packaging machinery, and industrial drives where reliable engagement with roller chain is required.

What are the specifications of the TSUBAKI 40B21F-1D sprocket?

This TSUBAKI sprocket is a single strand size 40 model with 21 teeth, a 1 1/4 in bore diameter, and a 1/2 in chain pitch. It is made of steel and has a fixed-bore design. The manufacturer part number is 40B21F-1D. It is suitable for use with ANSI 40 roller chain.

Where to buy TSUBAKI 40B21F-1D sprockets worldwide?

3G Electric supplies TSUBAKI 40B21F-1D sprockets worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time. We source genuine TSUBAKI components for power transmission needs.

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

To select the correct TSUBAKI sprocket, match the chain pitch (1/2 in for size 40), number of teeth, and bore diameter to your shaft. The 40B21F-1D has 21 teeth and a 1 1/4 in bore. Ensure the sprocket is compatible with your chain type and load requirements. Consult a TSUBAKI catalog for guidance.

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

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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