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TSUBAKI Sprocket: One-Sided Hub, For Single Strands, 25, 21 Teeth, 1.678 in Pitch Dia - Size 25 Plain-Bore Roller Chain Sprockets
TSUBAKISize 25 Plain-Bore Roller Chain Sprockets

TSUBAKI Sprocket: One-Sided Hub, For Single Strands, 25, 21 Teeth, 1.678 in Pitch Dia

The TSUBAKI Sprocket: One-Sided Hub is a Size 25 plain-bore roller chain sprocket for single strands, made of steel with 21 teeth and a 1.678 in pitch diameter (MPN 25B21). 3G Electric interprets customer demand and…

SKU 3G-OTH-124539

Brand
TSUBAKI
Item
Sprocket: One-Sided Hub, For Single Strands, 25, 21 Teeth, 1.678 in Pitch Dia
Category
Size 25 Plain-Bore Roller Chain Sprockets
Available to Order
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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
25B21
Type
For Single Strands, 25, Steel
Teeth
21
Pitch Dia
1.678 in

Technical Documents

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

Product Description

The TSUBAKI Sprocket: One-Sided Hub is a Size 25 plain-bore roller chain sprocket for single strands, made of steel with 21 teeth and a 1.678 in pitch diameter (MPN 25B21). 3G Electric interprets customer demand and delivers this genuine industrial component across 14 departments — with specialist depth in combustion, pumps and controls as an authorised distributor — ensuring you get the right answer, not just a catalog.

Frequently Asked Questions

What is the TSUBAKI 25B21 sprocket used for?

The TSUBAKI 25B21 is a one-sided hub sprocket designed for single-strand roller chain drives. It is commonly used in power transmission applications such as conveyors, packaging machinery, and industrial automation where precise motion transfer is required.

What are the specifications of the TSUBAKI 25B21 sprocket?

The TSUBAKI 25B21 is a size 25 plain-bore roller chain sprocket with 21 teeth and a pitch diameter of 1.678 inches. It features a one-sided hub design for single-strand chains. The manufacturer part number is 25B21, and it is made of steel for durability.

Where to buy TSUBAKI 25B21 sprockets worldwide?

You can source TSUBAKI 25B21 sprockets worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on this part.

How to select the right TSUBAKI sprocket for a roller chain?

To select the correct TSUBAKI sprocket, match the chain size (e.g., 25), number of teeth, and bore type to your application. The 25B21 is a plain-bore sprocket for single-strand chains. Ensure the pitch diameter and hub style fit your shaft and space constraints.

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 25 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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