We ship to the Philippines — door-to-door, customs and logistics handled by 3G Electric

TSUBAKI Single Strand Sprocket: 40, For 1/2 in Chain Pitch, 1 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 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, with 21 teeth and a 1 in bore diameter, made of steel (MPN 40B21F-1). 3G Electric interprets your…

SKU 3G-OTH-123900

Also listed as: 40B21F1 · 40B21F 1

Brand
TSUBAKI
Item
Single Strand Sprocket: 40, For 1/2 in Chain Pitch, 1 in Bore Dia, 21 Teeth
Category
Size 40 Fixed-Bore Roller Chain Sprockets
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

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

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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, with 21 teeth and a 1 in bore diameter, made of steel (MPN 40B21F-1). 3G Electric interprets your demand for this genuine TSUBAKI component and delivers it across 14 industrial departments, with specialist depth in power transmission and controls to support your application.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is a TSUBAKI 40B21F-1 sprocket used for?

This TSUBAKI single strand sprocket is used in roller chain drives for power transmission across industrial machinery, conveyors, and material handling systems. It fits 1/2 in pitch chain with a 1 in bore and 21 teeth, providing reliable torque transfer in manufacturing and processing equipment.

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

The TSUBAKI 40B21F-1 is a size 40 fixed-bore single strand sprocket with 21 teeth, a 1 in bore diameter, and a 1/2 in chain pitch. It is made of steel for durability. The manufacturer part number is 40B21F-1, and it is designed for ANSI 40 roller chain.

Where to buy TSUBAKI sprockets worldwide?

3G Electric supplies TSUBAKI sprockets like the 40B21F-1 to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. As a global industrial sourcing partner, we provide genuine TSUBAKI power transmission components for any application.

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

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 (1 in) to your drive requirements. Ensure the sprocket material (steel) suits the load and environment. Consult a TSUBAKI catalog for shaft and keyway specs.

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.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
TSUBAKI Single Strand Sprocket: 40, For 1/2 in Chain Pitch, 3/4 in Bore Dia, 21 Teeth, Steel (MPN 40B21F-3/4)
TSUBAKI
TSUBAKI Single Strand Sprocket: 40, For 1/2 in Chain Pitch, 3/4 in Bore Dia, 21 Teeth, Steel (MPN 40B21F-3/4)
TSUBAKI Single Strand Sprocket: 40, For 1/2 in Chain Pitch, 5/8 in Bore Dia, 20 Teeth, Steel (MPN 40B20F-5/8)
TSUBAKI
TSUBAKI Single Strand Sprocket: 40, For 1/2 in Chain Pitch, 5/8 in Bore Dia, 20 Teeth, Steel (MPN 40B20F-5/8)
TSUBAKI Single Strand Sprocket: 40, For 1/2 in Chain Pitch, 1 1/4 in Bore Dia, 15 Teeth, Steel (MPN 40B15F-1 1/4)
TSUBAKI
TSUBAKI Single Strand Sprocket: 40, For 1/2 in Chain Pitch, 1 1/4 in Bore Dia, 15 Teeth, Steel (MPN 40B15F-1 1/4)
TSUBAKI Single Strand Sprocket: 40, For 1/2 in Chain Pitch, 1/2 in Bore Dia, 15 Teeth, Steel (MPN 40B15F-1/2)
TSUBAKI
TSUBAKI Single Strand Sprocket: 40, For 1/2 in Chain Pitch, 1/2 in Bore Dia, 15 Teeth, Steel (MPN 40B15F-1/2)
TSUBAKI Single Strand Sprocket: 40, For 1/2 in Chain Pitch, 1 1/4 in Bore Dia, 19 Teeth, Steel (MPN 40B19F-1 1/4)
TSUBAKI
TSUBAKI Single Strand Sprocket: 40, For 1/2 in Chain Pitch, 1 1/4 in Bore Dia, 19 Teeth, Steel (MPN 40B19F-1 1/4)
TSUBAKI Single Strand Sprocket: 40, For 1/2 in Chain Pitch, 5/8 in Bore Dia, 19 Teeth, Steel (MPN 40B19F-5/8)
TSUBAKI
TSUBAKI Single Strand Sprocket: 40, For 1/2 in Chain Pitch, 5/8 in Bore Dia, 19 Teeth, Steel (MPN 40B19F-5/8)

More from TSUBAKI

View all TSUBAKI parts
TSUBAKI Single Strand Sprocket: 40, For 1/2 in Chain Pitch, 5/8 in Bore Dia, 30 Teeth, Steel (MPN 40B30F-5/8)
TSUBAKI
TSUBAKI Single Strand Sprocket: 40, For 1/2 in Chain Pitch, 5/8 in Bore Dia, 30 Teeth, Steel (MPN 40B30F-5/8)
TSUBAKI Single Strand Sprocket: 40, For 1/2 in Chain Pitch, 1 1/8 in Bore Dia, 15 Teeth, Steel (MPN 40B15F-1B)
TSUBAKI
TSUBAKI Single Strand Sprocket: 40, For 1/2 in Chain Pitch, 1 1/8 in Bore Dia, 15 Teeth, Steel (MPN 40B15F-1B)
TSUBAKI Single Strand Sprocket: 40, For 1/2 in Chain Pitch, 5/8 in Bore Dia, 23 Teeth, Steel (MPN 40B23FJ)
TSUBAKI
TSUBAKI Single Strand Sprocket: 40, For 1/2 in Chain Pitch, 5/8 in Bore Dia, 23 Teeth, Steel (MPN 40B23FJ)
TSUBAKI Single Strand Sprocket: 40, For 1/2 in Chain Pitch, 1 1/4 in Bore Dia, 20 Teeth, Steel (MPN 40B20F-1 1/4)
TSUBAKI
TSUBAKI Single Strand Sprocket: 40, For 1/2 in Chain Pitch, 1 1/4 in Bore Dia, 20 Teeth, Steel (MPN 40B20F-1 1/4)
TSUBAKI Single Strand Sprocket: 40, For 1/2 in Chain Pitch, 1 1/2 in Bore Dia, 19 Teeth, Steel (MPN 40B19F-1H)
TSUBAKI
TSUBAKI Single Strand Sprocket: 40, For 1/2 in Chain Pitch, 1 1/2 in Bore Dia, 19 Teeth, Steel (MPN 40B19F-1H)
TSUBAKI Single Strand Sprocket: 40, For 1/2 in Chain Pitch, 7/8 in Bore Dia, 18 Teeth, Steel (MPN 40B18F-7/8)
TSUBAKI
TSUBAKI Single Strand Sprocket: 40, For 1/2 in Chain Pitch, 7/8 in Bore Dia, 18 Teeth, Steel (MPN 40B18F-7/8)
TSUBAKI Single Strand Sprocket: 40, For 1/2 in Chain Pitch, 3/4 in Bore Dia, 20 Teeth, Steel (MPN 40B20F-3/4)
TSUBAKI
TSUBAKI Single Strand Sprocket: 40, For 1/2 in Chain Pitch, 3/4 in Bore Dia, 20 Teeth, Steel (MPN 40B20F-3/4)
TSUBAKI Single Strand Sprocket: 40, For 1/2 in Chain Pitch, 7/8 in Bore Dia, 17 Teeth, Steel (MPN 40B17F-7/8)
TSUBAKI
TSUBAKI Single Strand Sprocket: 40, For 1/2 in Chain Pitch, 7/8 in Bore Dia, 17 Teeth, Steel (MPN 40B17F-7/8)