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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 in and a keyway size of 1/2 in x 1/4 in. This component is…

SKU 3G-OTH-133049

Also listed as: 8020x2316 · 8020 x 2 3 16 · 8020-x-2-3-16

Brand
MARTIN
Item
Chain Shaft Coupling Hub: 80, Steel, 3 9/16 in Bore Dia
Category
Keyed Bore Chain Coupling Sprockets
Available to Order
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Worldwide Shipping
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Technical specs
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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

MARTIN
Manufacturer Part Number
8020 x 2-3/16
Type
Steel
Bore Dia
3 9/16 in
Keyway Size
1/2 in x 1/4 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 in and a keyway size of 1/2 in x 1/4 in. This component is designed for use in industrial power transmission systems.

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 MARTIN Chain Shaft Coupling Hub used for?

A MARTIN Chain Shaft Coupling Hub connects two shafts in industrial power transmission systems, transmitting torque while accommodating minor misalignment. It is commonly used in conveyors, pumps, and gearboxes across machining, material handling, and other heavy-duty applications.

What are the specifications of the MARTIN 8020 x 2-3/16 coupling hub?

The MARTIN 8020 x 2-3/16 coupling hub has a steel construction, size 80, with a 3-9/16 in round keyed bore and a 1/2 in x 1/4 in keyway. It is designed for chain coupling systems in power transmission, ensuring reliable torque transfer in industrial machinery.

Where to buy MARTIN chain coupling hubs worldwide?

3G Electric supplies MARTIN chain coupling hubs worldwide, handling full logistics and customs clearance for global delivery. As a sourcing specialist across 14 industrial departments, we provide genuine MARTIN components like the 8020 x 2-3/16 hub for power transmission needs.

How to select the right MARTIN chain coupling hub for an application?

To select a MARTIN chain coupling hub, match the bore diameter and keyway size to your shaft dimensions—here, 3-9/16 in bore with 1/2 in x 1/4 in keyway. Consider the sprocket size (80) and torque requirements. 3G Electric can help interpret your system needs and source the correct hub.

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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Compatible alternatives & equivalents

Cross-referenced by specification & description
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
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, 7/8 in x 7/16 in Keyway Size (MPN 8020 x 3-3/8)
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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, 7/8 in x 7/16 in Keyway Size (MPN 8020 x 3-7/16)
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 3-7/16)
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 3-1/8)
MARTIN
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 1/8 in Bore Dia, 3/8 in x 3/16 in Keyway Size (MPN 8018 x 1-3/4)
MARTIN
MARTIN Chain Shaft Coupling Hub: 80, Steel, 3 1/8 in Bore Dia, 3/8 in x 3/16 in Keyway Size (MPN 8018 x 1-3/4)

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