TSUBAKI Sprocket: One-Sided Hub, For Single Strands, 40, 21 Teeth, 3.355 in Pitch Dia
SKU 3G-OTH-138154
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Frequently Asked Questions
What is a TSUBAKI 40B21 sprocket used for?
The TSUBAKI 40B21 is a size 40 plain-bore roller chain sprocket used to transmit rotary motion in conveyor systems, packaging lines, and industrial machinery. Its single-strand design and 21 teeth provide reliable power transmission in applications requiring precise timing and load distribution.
What are the specifications of the TSUBAKI 40B21 sprocket?
The TSUBAKI 40B21 is a one-sided hub sprocket for single strands, size 40, with 21 teeth and a 3.355-inch pitch diameter. It is made of steel and is a plain-bore type, allowing custom bore sizing. The manufacturer part number is 40B21.
Where to buy TSUBAKI 40B21 sprockets worldwide?
3G Electric supplies TSUBAKI 40B21 sprockets worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this size 40 plain-bore sprocket.
How to select the right TSUBAKI sprocket for a roller chain?
Match the sprocket's chain size (e.g., 40), number of teeth, and pitch diameter to your existing roller chain. Ensure the bore type (plain-bore in this case) fits your shaft. TSUBAKI sprockets like the 40B21 are designed for single-strand applications; verify strand count and hub configuration.
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Common applications for TSUBAKITSUBAKI Products
3G Electric supplies TSUBAKI size 40 plain-bore roller chain sprockets. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.















