We ship worldwide — Singapore, Australia, Malaysia, Indonesia, Philippines, India, Middle East & more

TSUBAKI Sprocket: For 50 Chain, 21 Teeth, 4.194 in Pitch Dia, 4.52 in Outside Dia - Size 50 Bushed-Bore Roller Chain Sprockets
TSUBAKISize 50 Bushed-Bore Roller Chain Sprockets

TSUBAKI Sprocket: For 50 Chain, 21 Teeth, 4.194 in Pitch Dia, 4.52 in Outside Dia

The TSUBAKI Sprocket is a Size 50 bushed-bore roller chain sprocket designed for 50 chain. It features 21 teeth, a 4.194-inch pitch diameter, and a 4.52-inch outside diameter, constructed from steel. This sprocket…

SKU 3G-OTH-127228

Brand
TSUBAKI
Item
Sprocket: For 50 Chain, 21 Teeth, 4.194 in Pitch Dia, 4.52 in Outside Dia
Category
Size 50 Bushed-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

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

TSUBAKI
Manufacturer Part Number
50SDS21
Type
Steel
Teeth
21
Pitch Dia
4.194 in
Outside Dia
4.52 in
Required Bushing Series
SDS

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 Sprocket is a Size 50 bushed-bore roller chain sprocket designed for 50 chain. It features 21 teeth, a 4.194-inch pitch diameter, and a 4.52-inch outside diameter, constructed from steel. This sprocket requires an SDS bushing series and is identified by manufacturer part number 50SDS21.

Frequently Asked Questions

What is the TSUBAKI 50SDS21 sprocket used for?

The TSUBAKI 50SDS21 is a Size 50 bushed-bore roller chain sprocket used to transmit rotary motion in industrial power transmission systems. It is designed for 50 chain and is commonly applied in conveyors, packaging machinery, and material handling equipment where reliable torque transfer is required.

What are the specifications of the TSUBAKI 50SDS21 sprocket?

The TSUBAKI 50SDS21 sprocket has 21 teeth, a 4.194-inch pitch diameter, and a 4.520-inch outside diameter. It is made of steel and requires an SDS bushing series. The manufacturer part number is 50SDS21. This bushed-bore design allows mounting on various shaft sizes using the appropriate SDS bushing.

Where to buy TSUBAKI sprockets worldwide?

3G Electric supplies TSUBAKI sprockets like the 50SDS21 to customers worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on this and other TSUBAKI power transmission components.

How to select the correct bushing for a TSUBAKI 50SDS21 sprocket?

To select the correct bushing for the TSUBAKI 50SDS21 sprocket, you must use an SDS series bushing. Measure your shaft diameter and choose an SDS bushing with a bore size matching that shaft. The bushing is inserted into the sprocket bore and secured with set screws, ensuring a tight, concentric fit for smooth power transmission.

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 50 bushed-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 Sprocket: For 50 Chain, 20 Teeth, 3.995 in Pitch Dia, 4.32 in Outside Dia, Steel (MPN 50SDS20)
TSUBAKI
TSUBAKI Sprocket: For 50 Chain, 20 Teeth, 3.995 in Pitch Dia, 4.32 in Outside Dia, Steel (MPN 50SDS20)
TSUBAKI Sprocket: For 50 Chain, 22 Teeth, 4.392 in Pitch Dia, 4.72 in Outside Dia, Steel (MPN 50SDS22)
TSUBAKI
TSUBAKI Sprocket: For 50 Chain, 22 Teeth, 4.392 in Pitch Dia, 4.72 in Outside Dia, Steel (MPN 50SDS22)
TSUBAKI Sprocket: For 50 Chain, 40 Teeth, 7.966 in Pitch Dia, 8.32 in Outside Dia, Steel (MPN 50SDS40)
TSUBAKI
TSUBAKI Sprocket: For 50 Chain, 40 Teeth, 7.966 in Pitch Dia, 8.32 in Outside Dia, Steel (MPN 50SDS40)
TSUBAKI Sprocket: For 50 Chain, 25 Teeth, 4.987 in Pitch Dia, 5.32 in Outside Dia, Steel (MPN 50SDS25)
TSUBAKI
TSUBAKI Sprocket: For 50 Chain, 25 Teeth, 4.987 in Pitch Dia, 5.32 in Outside Dia, Steel (MPN 50SDS25)
TSUBAKI Sprocket: For 50 Chain, 32 Teeth, 6.376 in Pitch Dia, 6.72 in Outside Dia, Steel (MPN 50SDS32)
TSUBAKI
TSUBAKI Sprocket: For 50 Chain, 32 Teeth, 6.376 in Pitch Dia, 6.72 in Outside Dia, Steel (MPN 50SDS32)
TSUBAKI Sprocket: For 50 Chain, 24 Teeth, 4.788 in Pitch Dia, 5.12 in Outside Dia, Steel (MPN 50SDS24)
TSUBAKI
TSUBAKI Sprocket: For 50 Chain, 24 Teeth, 4.788 in Pitch Dia, 5.12 in Outside Dia, Steel (MPN 50SDS24)

More from TSUBAKI

View all TSUBAKI parts
TSUBAKI Sprocket: For 50 Chain, 16 Teeth, 3.204 in Pitch Dia, 3.52 in Outside Dia, Steel (MPN 50JA16)
TSUBAKI
TSUBAKI Sprocket: For 50 Chain, 16 Teeth, 3.204 in Pitch Dia, 3.52 in Outside Dia, Steel (MPN 50JA16)
TSUBAKI Sprocket: For 50 Chain, 48 Teeth, 9.556 in Pitch Dia, 9.91 in Outside Dia, Steel (MPN 50SDS48)
TSUBAKI
TSUBAKI Sprocket: For 50 Chain, 48 Teeth, 9.556 in Pitch Dia, 9.91 in Outside Dia, Steel (MPN 50SDS48)
TSUBAKI Single Strand Sprocket: For 50 Chain, 13 Teeth, 2.612 in Pitch Dia, 2.911 in Outside Dia (MPN 50H13)
TSUBAKI
TSUBAKI Single Strand Sprocket: For 50 Chain, 13 Teeth, 2.612 in Pitch Dia, 2.911 in Outside Dia (MPN 50H13)
TSUBAKI Sprocket: For 50 Chain, 26 Teeth, 5.185 in Pitch Dia, 5.522 in Outside Dia, Steel (MPN 50BTL26)
TSUBAKI
TSUBAKI Sprocket: For 50 Chain, 26 Teeth, 5.185 in Pitch Dia, 5.522 in Outside Dia, Steel (MPN 50BTL26)
TSUBAKI Single Strand Sprocket: For 50 Chain, 54 Teeth, 10.749 in Pitch Dia, 11.106 in Outside Dia (MPN 50BTL54)
TSUBAKI
TSUBAKI Single Strand Sprocket: For 50 Chain, 54 Teeth, 10.749 in Pitch Dia, 11.106 in Outside Dia (MPN 50BTL54)
TSUBAKI Sprocket: For 50 Chain, 18 Teeth, 3.599 in Pitch Dia, 3.92 in Outside Dia, Steel (MPN 50SH18)
TSUBAKI
TSUBAKI Sprocket: For 50 Chain, 18 Teeth, 3.599 in Pitch Dia, 3.92 in Outside Dia, Steel (MPN 50SH18)
TSUBAKI Sprocket: For 50 Chain, 42 Teeth, 8.364 in Pitch Dia, 8.715 in Outside Dia, Steel (MPN 50Q42)
TSUBAKI
TSUBAKI Sprocket: For 50 Chain, 42 Teeth, 8.364 in Pitch Dia, 8.715 in Outside Dia, Steel (MPN 50Q42)
TSUBAKI Sprocket: For 50 Chain, 18 Teeth, 3.599 in Pitch Dia, 3.92 in Outside Dia, Steel, ANSI (MPN 50BTL18)
TSUBAKI
TSUBAKI Sprocket: For 50 Chain, 18 Teeth, 3.599 in Pitch Dia, 3.92 in Outside Dia, Steel, ANSI (MPN 50BTL18)