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TSUBAKI 40B21 Size 40 Plain-Bore Roller Chain Sprocket, 21 Teeth, Steel - Size 40 Plain-Bore Roller Chain Sprockets
TSUBAKISize 40 Plain-Bore Roller Chain Sprockets

TSUBAKI 40B21 Size 40 Plain-Bore Roller Chain Sprocket, 21 Teeth, Steel

The TSUBAKI Sprocket: One-Sided Hub is a Size 40 plain-bore roller chain sprocket for single strands, made of steel with 21 teeth and a 3.355 in pitch diameter (MPN 40B21).

SKU 3G-OTH-138154

Brand
TSUBAKI
Item
40B21 Size 40 Plain-Bore Roller Chain Sprocket, 21 Teeth, Steel
Part Number
40B21
Category
Size 40 Plain-Bore Roller Chain Sprockets
Available to Order
Also known as:40B21TSUBAKI
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.

Technical Specifications

TSUBAKI
Manufacturer Part Number
40B21
Type
For Single Strands, 40, Steel
Teeth
21
Pitch Dia
3.355 in

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

Product Description

The TSUBAKI Sprocket: One-Sided Hub is a Size 40 plain-bore roller chain sprocket for single strands, made of steel with 21 teeth and a 3.355 in pitch diameter (MPN 40B21).

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.

Used in

Common applications for TSUBAKI
Industrial machinery — TSUBAKI type 40 standard roller chain (1/2 in pitch) for power transmission between sprockets
Conveyor systems — TSUBAKI C2082H heavy conveyor roller chain (2 in pitch) for high-load material handling
Automated systems — TSUBAKI size 35 fixed-bore sprocket (35B20F-3/4) driving 3/8 in pitch chain
Heavy-duty conveyors — TSUBAKI C2162H heavy conveyor roller chain (4 in pitch) for bulk material transport
Power transmission drives — TSUBAKI C2120H heavy conveyor roller chain (3 in pitch) in industrial conveyor applications
Material handling equipment — TSUBAKI C2062H heavy conveyor roller chain (1 1/2 in pitch) for secure assembly in conveyors
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TSUBAKI 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.

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