MARTINBore to Size Chain Coupling Sprockets

MARTIN Chain Shaft Coupling Hub: 80, Steel, 3 1/8 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 design and accommodates bore diameters from 1-1/8 to 3-1/8 inches. This hub is part of the…

SKU 3G-OTH-153510

Brand

MARTIN

Item

Chain Shaft Coupling Hub: 80, Steel, 3 1/8 in Bore Dia, For Keyed Shaft Type

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

8018

Type

Steel, For Keyed Shaft Type, Round Keyed 

Bore Dia

3 1/8 in 

Technical Documents

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MARTIN Products

3G Electric (S) Pte. Ltd. — Singapore

Product Description

Frequently Asked Questions

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

The MARTIN Chain Shaft Coupling Hub: 80 is used to connect a keyed shaft to a chain drive system in industrial power transmission applications. It is commonly found in conveyors, material handling equipment, and heavy machinery where reliable torque transfer between shafts is required.

What are the specifications of the MARTIN 8018 coupling hub?

The MARTIN 8018 coupling hub is a steel bore-to-size chain coupling sprocket from the 80 series. It has a round keyed design and accommodates bore diameters from 1-1/8 to 3-1/8 inches. The hub is for keyed shaft types and is manufactured by MARTIN under part number 8018.

Where to buy the MARTIN 8018 coupling hub worldwide?

You can source the MARTIN 8018 coupling hub through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time on this MARTIN chain coupling hub.

How to select the correct MARTIN chain coupling hub size?

To select the correct MARTIN chain coupling hub, match the hub series (e.g., 80) to your chain pitch and confirm the bore diameter fits your shaft. The MARTIN 8018 hub accepts bore diameters from 1-1/8 to 3-1/8 inches and requires a round keyed shaft. Always verify shaft keyway dimensions before ordering.

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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