TSUBAKI Single Strand Sprocket: 40, For 1/2 in Chain Pitch, 3/4 in Bore Dia, 21 Teeth
The TSUBAKI Single Strand Sprocket: 40 is a Size 40 fixed-bore roller chain sprocket for 1/2 in chain pitch, made of steel with 21 teeth and a 3/4 in bore diameter (MPN 40B21F-3/4). 3G Electric interprets your demand…
SKU 3G-OTH-123862
Also listed as: 40B21F34 · 40B21F 3 4 · 40B21F-3-4
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
Need installation or engineering help?
Ask a question
Product Description
The TSUBAKI Single Strand Sprocket: 40 is a Size 40 fixed-bore roller chain sprocket for 1/2 in chain pitch, made of steel with 21 teeth and a 3/4 in bore diameter (MPN 40B21F-3/4). 3G Electric interprets your demand for this genuine TSUBAKI component, sourcing it across our 14 industrial departments — with specialist depth in power transmission — to deliver the right part with accountable support.
Frequently Asked Questions
What is a TSUBAKI single strand sprocket used for?
A TSUBAKI single strand sprocket is used in power transmission systems to drive roller chain in conveyors, packaging machinery, and industrial equipment. The 40B21F-3/4 model fits 1/2 in chain pitch and a 3/4 in bore, making it suitable for light-to-medium duty applications requiring precise timing and torque transfer.
What are the specifications of the TSUBAKI 40B21F-3/4 sprocket?
The TSUBAKI 40B21F-3/4 is a single strand sprocket with 21 teeth, a 3/4 in bore diameter, and a 1/2 in chain pitch. It is made of steel and is part of the Size 40 fixed-bore roller chain sprocket series. The manufacturer part number is 40B21F-3/4.
Where to buy TSUBAKI sprockets worldwide?
You can source TSUBAKI sprockets like the 40B21F-3/4 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 and other TSUBAKI power transmission components.
How to select the right TSUBAKI sprocket for a roller chain?
To select the correct TSUBAKI sprocket, match the chain pitch (1/2 in for Size 40), number of teeth (21 for this model), and bore diameter (3/4 in) to your shaft and chain specifications. Ensure the sprocket material (steel) suits the operating environment. TSUBAKI sprockets are designed for fixed-bore applications requiring precise alignment.
Used in
Common applications for TSUBAKITSUBAKI 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.
