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 bore with a 3-1/8 in diameter and a 3/4 in x 3/8 in keyway size, with 18 teeth. The…
SKU 3G-OTH-132995
Also listed as: 8018x278 · 8018 x 2 7 8 · 8018-x-2-7-8
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.
Need installation or engineering help?
Ask a question
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 3/4 in x 3/8 in keyway size, with 18 teeth. The manufacturer part number is 8018 x 2-7/8.
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 while 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 2-7/8 coupling hub?
The MARTIN 8018 x 2-7/8 coupling hub is a steel, round keyed bore sprocket with 18 teeth and a chain size of 80. It has a 3-1/8 in bore diameter and a 3/4 in x 3/8 in keyway. The manufacturer part number is 8018 x 2-7/8. This hub is designed for use with MARTIN chain couplings and standard roller chain.
Where to buy MARTIN chain coupling hubs worldwide?
3G Electric supplies MARTIN chain coupling hubs worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time on the MARTIN 8018 x 2-7/8 hub. We source and deliver genuine MARTIN components to support your power transmission needs.
How to select the right MARTIN chain coupling hub?
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. Verify the chain size (80) and tooth count (18) align with your coupling requirements. Ensure the hub material (steel) suits your operating environment. Consult MARTIN's catalog for torque ratings and application guidelines.
Used in
Common applications for MARTINMARTIN 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.
