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MARTIN Chain Shaft Coupling Hub: 80, Steel, 3 9/16 in Bore Dia - Keyed Bore Chain Coupling Sprockets
MARTINKeyed Bore Chain Coupling Sprockets

MARTIN Chain Shaft Coupling Hub: 80, Steel, 3 9/16 in Bore Dia

The MARTIN Chain Shaft Coupling Hub: 80 is a keyed bore chain coupling sprocket made of steel. It features a round keyed bore with a diameter of 3-9/16 inches and a keyway size of 7/8 inch by 7/16 inch. This…

SKU 3G-OTH-132998

Also listed as: 8020x3716 · 8020 x 3 7 16 · 8020-x-3-7-16

Brand
MARTIN
Item
Chain Shaft Coupling Hub: 80, Steel, 3 9/16 in Bore Dia
Category
Keyed Bore Chain Coupling Sprockets
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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

MARTIN
Manufacturer Part Number
8020 x 3-7/16
Type
Steel
Bore Dia
3 9/16 in
Keyway Size
7/8 in x 7/16 in

Technical Documents

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

Product Description

The MARTIN Chain Shaft Coupling Hub: 80 is a keyed bore chain coupling sprocket made of steel. It features a round keyed bore with a diameter of 3-9/16 inches and a keyway size of 7/8 inch by 7/16 inch. This component is designed for use in industrial power transmission systems.

Frequently Asked Questions

What is the MARTIN Chain Shaft Coupling Hub: 80 used for?

The MARTIN Chain Shaft Coupling Hub: 80 is used in industrial power transmission systems to connect two shafts and transmit torque. It is commonly applied in conveyors, gearboxes, and heavy machinery where reliable, misalignment-tolerant coupling is required.

What are the specifications of the MARTIN Chain Shaft Coupling Hub: 80?

The MARTIN Chain Shaft Coupling Hub: 80 has a steel construction, a round keyed bore diameter of 3-9/16 in, and a keyway size of 7/8 in x 7/16 in. It is a size 80 chain coupling sprocket, part number 8020 x 3-7/16, designed for industrial power transmission.

Where to buy the MARTIN Chain Shaft Coupling Hub: 80 worldwide?

You can source the MARTIN Chain Shaft Coupling Hub: 80 worldwide through 3G Electric. As a global industrial equipment distributor, 3G Electric handles full logistics, customs clearance, and delivery to your location, ensuring a seamless procurement process for this MARTIN component.

How to select the correct MARTIN Chain Shaft Coupling Hub: 80?

To select the correct MARTIN Chain Shaft Coupling Hub: 80, verify your shaft diameter matches the 3-9/16 in bore and the keyway size is 7/8 in x 7/16 in. Confirm the coupling sprocket size (80) aligns with your chain pitch and torque requirements. Consult MARTIN's catalog for compatibility.

Used in

Common applications for MARTIN
Conveyor systems — MARTIN chain coupling sprockets (e.g., 6020SK) for torque transmission between motor and conveyor shaft.
Pump drives — MARTIN keyed bore coupling sprockets (e.g., 4016 x 1-3/16) for connecting pump impeller shafts.
Material handling equipment — MARTIN QD bushed sprockets (e.g., 5018SH) for adjustable bore mounting in bucket elevators.
Industrial gearboxes — MARTIN grid coupling seal kits (e.g., 1040T10-SEAL) to dampen vibration in gearbox output shafts.
Compressor systems — MARTIN spacer hubs (e.g., 1120T-SH) for aligning compressor and motor shafts with parallel keyways.
Mining machinery — MARTIN chain coupling hubs (e.g., 10018 x 2-7/16) for heavy-duty torque transfer in crusher drives.

MARTIN Products

3G Electric supplies MARTIN keyed bore chain coupling sprockets. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Cross-referenced by specification & description
MARTIN Chain Shaft Coupling Hub: 80, Steel, 3 9/16 in Bore Dia, 7/8 in x 7/16 in Keyway Size (MPN 8020 x 3-3/8)
MARTIN
MARTIN Chain Shaft Coupling Hub: 80, Steel, 3 9/16 in Bore Dia, 7/8 in x 7/16 in Keyway Size (MPN 8020 x 3-3/8)
MARTIN Chain Shaft Coupling Hub: 80, Steel, 3 9/16 in Bore Dia, 5/8 in x 5/16 in Keyway Size (MPN 8020 x 2-7/16)
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MARTIN Chain Shaft Coupling Hub: 80, Steel, 3 9/16 in Bore Dia, 5/8 in x 5/16 in Keyway Size (MPN 8020 x 2-7/16)
MARTIN Chain Shaft Coupling Hub: 80, Steel, 3 9/16 in Bore Dia, 3/4 in x 3/8 in Keyway Size (MPN 8020 x 2-15/16)
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MARTIN Chain Shaft Coupling Hub: 80, Steel, 3 9/16 in Bore Dia, 3/4 in x 3/8 in Keyway Size (MPN 8020 x 2-15/16)
MARTIN Chain Shaft Coupling Hub: 80, Steel, 3 9/16 in Bore Dia, 3/4 in x 3/8 in Keyway Size (MPN 8020 x 3-1/8)
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MARTIN Chain Shaft Coupling Hub: 80, Steel, 3 9/16 in Bore Dia, 3/4 in x 3/8 in Keyway Size (MPN 8020 x 3-1/8)
MARTIN Chain Shaft Coupling Hub: 80, Steel, 3 9/16 in Bore Dia, 1/2 in x 1/4 in Keyway Size (MPN 8020 x 2-3/16)
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MARTIN Chain Shaft Coupling Hub: 80, Steel, 3 9/16 in Bore Dia, 1/2 in x 1/4 in Keyway Size (MPN 8020 x 2-3/16)
MARTIN Chain Shaft Coupling Hub: 80, Steel, 3 9/16 in Bore Dia, 3/8 in x 3/16 in Keyway Size (MPN 8020 x 1-1/2)
MARTIN
MARTIN Chain Shaft Coupling Hub: 80, Steel, 3 9/16 in Bore Dia, 3/8 in x 3/16 in Keyway Size (MPN 8020 x 1-1/2)

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