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MARTIN Chain Shaft Coupling Hub: 80, Steel, 3 9/16 in Bore Dia, For Keyed Shaft Type - Bore to Size Chain Coupling Sprockets
MARTINBore to Size Chain Coupling Sprockets

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

The MARTIN Chain Shaft Coupling Hub: 80 is a bore-to-size chain coupling sprocket made of steel. It features a round keyed bore with a diameter range of 1-1/2 to 3-9/16 inches and is designed for keyed shafts. This…

SKU 3G-OTH-153507

Brand
MARTIN
Item
Chain Shaft Coupling Hub: 80, Steel, 3 9/16 in Bore Dia, For Keyed Shaft Type
Category
Bore to Size Chain Coupling Sprockets
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Technical Specifications

MARTIN
Manufacturer Part Number
8020
Type
Steel, For Keyed Shaft Type, Round Keyed
Bore Dia
3 9/16 in

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

Product Description

The MARTIN Chain Shaft Coupling Hub: 80 is a bore-to-size chain coupling sprocket made of steel. It features a round keyed bore with a diameter range of 1-1/2 to 3-9/16 inches and is designed for keyed shafts. This product is identified by manufacturer part number 8020.

Frequently Asked Questions

What is a MARTIN Chain Shaft Coupling Hub used for?

A MARTIN Chain Shaft Coupling Hub connects two rotating shafts to transmit torque in industrial power transmission systems. It is commonly used in conveyors, pumps, and gearboxes where a keyed shaft requires a secure, backlash-free coupling. The steel construction provides durability in heavy-duty applications.

What are the specifications of the MARTIN 8020 coupling hub?

The MARTIN 8020 coupling hub is a size 80 bore-to-size chain coupling sprocket made of steel. It has a round keyed bore with a diameter range of 1-1/2 to 3-9/16 inches, designed for keyed shafts. The manufacturer part number is 8020, and it is produced by MARTIN.

Where to buy MARTIN coupling hubs worldwide?

3G Electric supplies MARTIN coupling hubs worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time on the MARTIN 8020 chain shaft coupling hub.

How to select the right MARTIN chain coupling hub size?

To select the correct MARTIN chain coupling hub, match the bore diameter to your shaft size (1-1/2 to 3-9/16 inches for the 8020 model) and ensure the keyway type is round keyed. Verify the sprocket size (80) aligns with your chain pitch. Always consult the manufacturer's catalog for torque ratings.

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 bore to size 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: 50, Steel, 1 11/16 in Bore Dia, For Keyed Shaft Type, Round Keyed (MPN 5016)
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MARTIN Chain Shaft Coupling Hub: 100, Steel, 4 5/8 in Bore Dia, For Keyed Shaft Type, Round Keyed (MPN 10020)
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MARTIN Chain Shaft Coupling Hub: 100, Steel, 4 5/8 in Bore Dia, For Keyed Shaft Type, Round Keyed (MPN 10020)
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, 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)

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