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MARTIN Chain Shaft Coupling Hub: 80, Steel, 3 1/8 in Bore Dia, 3/4 in x 3/8 in Keyway Size - Keyed Bore Chain Coupling Sprockets
MARTINKeyed Bore Chain Coupling Sprockets

MARTIN Chain Shaft Coupling Hub: 80, Steel, 3 1/8 in Bore Dia, 3/4 in x 3/8 in Keyway Size

The MARTIN Chain Shaft Coupling Hub: 80 is a keyed bore chain coupling sprocket made of steel. It features a round keyed 3-1/8 in bore diameter with a 3/4 in x 3/8 in keyway size and 18 teeth. The manufacturer part…

SKU 3G-OTH-133048

Brand
MARTIN
Item
Chain Shaft Coupling Hub: 80, Steel, 3 1/8 in Bore Dia, 3/4 in x 3/8 in Keyway Size
Category
Keyed Bore Chain Coupling Sprockets
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Technical Specifications

MARTIN
Manufacturer Part Number
8018 x 2-15/16
Type
Steel
Teeth
18
Bore Dia
3 1/8 in
Keyway Size
3/4 in x 3/8 in
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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 3-1/8 in bore diameter with a 3/4 in x 3/8 in keyway size and 18 teeth. The manufacturer part number is 8018 x 2-15/16.

Frequently Asked Questions

What is a MARTIN Chain Shaft Coupling Hub used for?

A MARTIN Chain Shaft Coupling Hub connects two rotating shafts in industrial power transmission systems, such as conveyors and gearboxes. It uses a roller chain to transmit torque between shafts, accommodating minor misalignment. This steel hub with 18 teeth and a 3-1/8 in bore is designed for heavy-duty applications requiring reliable, low-maintenance coupling.

What are the specifications of the MARTIN 8018 x 2-15/16 coupling hub?

The MARTIN Chain Shaft Coupling Hub model 8018 x 2-15/16 has a steel construction, 18 teeth, and a round keyed bore diameter of 3-1/8 in. The keyway size is 3/4 in x 3/8 in, and the chain size is 80. It is a keyed bore chain coupling sprocket designed for use with MARTIN roller chain.

Where to buy MARTIN chain coupling hubs worldwide?

You can source MARTIN chain coupling hubs worldwide through 3G Electric, a global industrial equipment distributor established in 1990. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead times on the MARTIN 8018 x 2-15/16 hub and other power transmission components.

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

To select the correct MARTIN chain coupling hub, match the bore diameter (3-1/8 in) and keyway size (3/4 in x 3/8 in) to your shaft dimensions. Verify the chain size (80) and tooth count (18) align with your torque and speed requirements. Consult MARTIN's catalog or contact 3G Electric for application guidance.

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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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). Key specifications — attr673435: Round Keyed; attr673436: 3-1/8 in; attr673438: 80; attr673457: Steel; attr85393: MARTIN.
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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). Key specifications — attr673435: Round Keyed; attr673436: 3-1/8 in; attr673438: 80; attr673457: Steel; attr85393: 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). Key specifications — attr673435: Round Keyed; attr673436: 3-1/8 in; attr673438: 80; attr673457: Steel; attr85393: MARTIN.
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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). Key specifications — attr673435: Round Keyed; attr673436: 3-1/8 in; attr673438: 80; attr673457: Steel; attr85393: 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). Key specifications — attr673435: Round Keyed; attr673436: 3-1/8 in; attr673438: 80; attr673457: Steel; attr85393: MARTIN.
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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). Key specifications — attr673435: Round Keyed; attr673436: 3-1/8 in; attr673438: 80; attr673457: Steel; attr85393: 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 1-15/16). Key specifications — attr673435: Round Keyed; attr673436: 3-1/8 in; attr673438: 80; attr673457: Steel; attr85393: MARTIN.
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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 1-15/16). Key specifications — attr673435: Round Keyed; attr673436: 3-1/8 in; attr673438: 80; attr673457: Steel; attr85393: 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 2-3/8). Key specifications — attr673435: Round Keyed; attr673436: 3-1/8 in; attr673438: 80; attr673457: Steel; attr85393: MARTIN.
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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 2-3/8). Key specifications — attr673435: Round Keyed; attr673436: 3-1/8 in; attr673438: 80; attr673457: Steel; attr85393: 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). Key specifications — attr673435: Round Keyed; attr673436: 3-1/8 in; attr673438: 80; attr673457: Steel; attr85393: MARTIN.
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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). Key specifications — attr673435: Round Keyed; attr673436: 3-1/8 in; attr673438: 80; attr673457: Steel; attr85393: MARTIN.

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MARTIN Chain Shaft Coupling Hub: 50, Steel, 2 in Bore Dia, 1/2 in x 1/4 in Keyway Size, Round Keyed (MPN 5018 x 1-7/8). Key specifications — attr673435: Round Keyed; attr673436: 2 in; attr673438: 50; attr673457: Steel; attr85393: MARTIN.
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MARTIN Chain Shaft Coupling Hub: 60, Steel, 3 in Bore Dia, 3/8 in x 3/16 in Keyway Size, Round Keyed (MPN 6022 x 1-3/4). Key specifications — attr673435: Round Keyed; attr673436: 3 in; attr673438: 60; attr673457: Steel; attr85393: MARTIN.
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MARTIN Chain Shaft Coupling Hub: 100, Steel, 4 5/8 in Bore Dia, 1 in x 1/2 in Keyway Size, 20 Teeth (MPN 10020 x 3-15/16). Key specifications — attr673435: Round Keyed; attr673436: 4-5/8 in; attr673438: 100; attr673457: Steel; attr85393: MARTIN.
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