MARTIN Chain Shaft Coupling Hub: 40, Steel, 7/8 in Bore Dia, 3/16 in x 3/32 in Keyway Size
The MARTIN Chain Shaft Coupling Hub: 40 is a keyed bore chain coupling sprocket made of steel. It features a round keyed 7/8 in bore diameter with a 3/16 in x 3/32 in keyway size and 12 teeth. This component is…
SKU 3G-OTH-132957
Also listed as: 4012x34 · 4012 x 3 4 · 4012-x-3-4
Local availability & support — the Philippines
- Delivery
- 5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
- Payment
- Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
- Ships to
- Manila, Quezon City, Cebu, Davao, Batangas
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Product Description
The MARTIN Chain Shaft Coupling Hub: 40 is a keyed bore chain coupling sprocket made of steel. It features a round keyed 7/8 in bore diameter with a 3/16 in x 3/32 in keyway size and 12 teeth. This component is identified by manufacturer part number 4012 x 3/4.
Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.
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. It is commonly used in conveyors, pumps, and gearboxes to transmit torque while accommodating minor misalignment. The steel construction and keyed bore ensure reliable, high-torque performance in heavy-duty machinery.
What are the specifications of the MARTIN 4012 x 3/4 coupling hub?
The MARTIN 4012 x 3/4 is a steel chain coupling hub with 12 teeth and a round keyed bore diameter of 7/8 in. It has a keyway size of 3/16 in x 3/32 in and is part of the size 40 series. This hub is designed for use with MARTIN chain couplings and is identified by MPN 4012 x 3/4.
Where to buy MARTIN chain coupling hubs worldwide?
You can source MARTIN chain coupling hubs worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on the MARTIN 4012 x 3/4 hub or other MARTIN power transmission components.
How to select the right MARTIN chain coupling hub?
To select the correct MARTIN chain coupling hub, match the bore diameter and keyway size to your shaft dimensions. For the 4012 x 3/4 model, the bore is 7/8 in with a 3/16 in x 3/32 in keyway. Also verify the number of teeth (12) and chain size (40) align with your coupling requirements. Consult MARTIN's catalog for torque ratings.
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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.
