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, identified by…
SKU 3G-OTH-132956
Also listed as: 4012x58 · 4012 x 5 8 · 4012-x-5-8
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
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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, identified by manufacturer part number 4012 x 5/8.
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 a 7/8 in bore and 12 teeth is designed for medium-duty mechanical drive applications.
What are the specifications of the MARTIN 4012 x 5/8 coupling hub?
The MARTIN 4012 x 5/8 is a steel keyed bore chain coupling sprocket with 12 teeth, a 7/8 in bore diameter, and a 3/16 in x 3/32 in keyway. It is part of the MARTIN size 40 series, featuring a round keyed bore design for secure shaft mounting in power transmission systems.
Where to buy MARTIN chain coupling hubs worldwide?
3G Electric supplies MARTIN chain coupling hubs worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your site. Contact us to source the MARTIN 4012 x 5/8 hub or other sizes for your application.
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 5/8 model, ensure your shaft is 7/8 in with a 3/16 in x 3/32 in keyway. Also verify the chain size (40 series) and tooth count (12) align with your torque and speed requirements.
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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.
