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MARTIN Chain Shaft Coupling Hub: 80, Steel, 3 1/8 in Bore Dia - Keyed Bore Chain Coupling Sprockets
MARTINKeyed Bore Chain Coupling Sprockets

MARTIN Chain Shaft Coupling Hub: 80, Steel, 3 1/8 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 3-1/8 in diameter and a 5/8 in x 5/16 in keyway size (MPN 8018 x 2-3/8). This…

SKU 3G-OTH-133013

Also listed as: 8018x238 · 8018 x 2 3 8 · 8018-x-2-3-8

Brand
MARTIN
Item
Chain Shaft Coupling Hub: 80, Steel, 3 1/8 in Bore Dia
Category
Keyed Bore Chain Coupling Sprockets
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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

MARTIN
Manufacturer Part Number
8018 x 2-3/8
Type
Steel
Bore Dia
3 1/8 in
Keyway Size
5/8 in x 5/16 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 3-1/8 in diameter and a 5/8 in x 5/16 in keyway size (MPN 8018 x 2-3/8). 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 rotary motion. It is commonly applied in conveyors, pumps, and heavy machinery where a reliable, keyed bore 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 3-1/8 in, and a keyway size of 5/8 in x 5/16 in. The manufacturer part number is 8018 x 2-3/8. It is designed for use with chain coupling sprockets in power transmission.

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

You can source the MARTIN Chain Shaft Coupling Hub: 80 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations, ensuring the component reaches your facility reliably.

How to install the MARTIN Chain Shaft Coupling Hub: 80?

To install the MARTIN Chain Shaft Coupling Hub: 80, align the keyway with the shaft key, slide the hub onto the shaft, and secure it with the appropriate fasteners. Ensure the coupling sprocket is properly tensioned and lubricated per manufacturer guidelines for optimal performance.

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 1/8 in Bore Dia, 5/8 in x 5/16 in Keyway Size (MPN 8018 x 2-7/16)
MARTIN
MARTIN Chain Shaft Coupling Hub: 80, Steel, 3 1/8 in Bore Dia, 5/8 in x 5/16 in Keyway Size (MPN 8018 x 2-7/16)
MARTIN Chain Shaft Coupling Hub: 80, Steel, 3 1/8 in Bore Dia, 5/8 in x 5/16 in Keyway Size (MPN 8018 x 2-5/8)
MARTIN
MARTIN Chain Shaft Coupling Hub: 80, Steel, 3 1/8 in Bore Dia, 5/8 in x 5/16 in Keyway Size (MPN 8018 x 2-5/8)
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)
MARTIN Chain Shaft Coupling Hub: 80, Steel, 3 1/8 in Bore Dia, 3/4 in x 3/8 in Keyway Size, 18 Teeth (MPN 8018 x 2-15/16)
MARTIN
MARTIN Chain Shaft Coupling Hub: 80, Steel, 3 1/8 in Bore Dia, 3/4 in x 3/8 in Keyway Size, 18 Teeth (MPN 8018 x 2-15/16)
MARTIN Chain Shaft Coupling Hub: 80, Steel, 3 1/8 in Bore Dia, 3/4 in x 3/8 in Keyway Size, 18 Teeth (MPN 8018 x 2-7/8)
MARTIN
MARTIN Chain Shaft Coupling Hub: 80, Steel, 3 1/8 in Bore Dia, 3/4 in x 3/8 in Keyway Size, 18 Teeth (MPN 8018 x 2-7/8)
MARTIN Chain Shaft Coupling Hub: 80, Steel, 3 1/8 in Bore Dia, 1/2 in x 1/4 in Keyway Size, 18 Teeth (MPN 8018 x 2-1/8)
MARTIN
MARTIN Chain Shaft Coupling Hub: 80, Steel, 3 1/8 in Bore Dia, 1/2 in x 1/4 in Keyway Size, 18 Teeth (MPN 8018 x 2-1/8)

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