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MARTIN Chain Shaft Coupling Hub: 50, Steel, 2 in Bore Dia, 5/16 in x 5/32 in Keyway Size - Keyed Bore Chain Coupling Sprockets
MARTINKeyed Bore Chain Coupling Sprockets

MARTIN Chain Shaft Coupling Hub: 50, Steel, 2 in Bore Dia, 5/16 in x 5/32 in Keyway Size

The MARTIN Chain Shaft Coupling Hub: 50 is a keyed bore chain coupling sprocket made of steel. It features a 2 in round keyed bore with a 5/16 in x 5/32 in keyway size and 18 teeth. The manufacturer part number is…

SKU 3G-OTH-132970

Also listed as: 5018x138 · 5018 x 1 3 8 · 5018-x-1-3-8

Brand
MARTIN
Item
Chain Shaft Coupling Hub: 50, Steel, 2 in Bore Dia, 5/16 in x 5/32 in Keyway Size
Category
Keyed Bore Chain Coupling Sprockets
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Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

MARTIN
Manufacturer Part Number
5018 x 1-3/8
Type
Steel
Teeth
18
Bore Dia
2 in
Keyway Size
5/16 in x 5/32 in

Technical Documents

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

Product Description

The MARTIN Chain Shaft Coupling Hub: 50 is a keyed bore chain coupling sprocket made of steel. It features a 2 in round keyed bore with a 5/16 in x 5/32 in keyway size and 18 teeth. The manufacturer part number is 5018 x 1-3/8.

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. 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 5018 x 1-3/8 coupling hub?

The MARTIN 5018 x 1-3/8 coupling hub has a 2 in round keyed bore with a 5/16 in x 5/32 in keyway, 18 teeth, and a chain size of 50. It is made of steel and is designed for use with MARTIN chain coupling sprockets. The manufacturer part number is 5018 x 1-3/8.

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 for availability and lead time on the MARTIN 5018 x 1-3/8 hub or other models.

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. Verify the chain size (e.g., 50) and tooth count (18) align with your coupling sprocket. Ensure the hub material (steel) suits your load and environmental conditions. Consult MARTIN'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 keyed bore 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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Compatible alternatives & equivalents

Cross-referenced by specification & description
MARTIN Chain Shaft Coupling Hub: 50, Steel, 2 in Bore Dia, 3/16 in x 3/32 in Keyway Size, 18 Teeth (MPN 5018 x 7/8)
MARTIN
MARTIN Chain Shaft Coupling Hub: 50, Steel, 2 in Bore Dia, 3/16 in x 3/32 in Keyway Size, 18 Teeth (MPN 5018 x 7/8)
MARTIN Chain Shaft Coupling Hub: 50, Steel, 2 in Bore Dia, 3/16 in x 3/32 in Keyway Size, 18 Teeth (MPN 5018 x 3/4)
MARTIN
MARTIN Chain Shaft Coupling Hub: 50, Steel, 2 in Bore Dia, 3/16 in x 3/32 in Keyway Size, 18 Teeth (MPN 5018 x 3/4)
MARTIN Chain Shaft Coupling Hub: 50, Steel, 2 in Bore Dia, 3/8 in x 3/16 in Keyway Size, Round Keyed (MPN 5018 x 1-7/16)
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MARTIN Chain Shaft Coupling Hub: 50, Steel, 2 in Bore Dia, 3/8 in x 3/16 in Keyway Size, Round Keyed (MPN 5018 x 1-7/16)
MARTIN Chain Shaft Coupling Hub: 50, Steel, 2 in Bore Dia, 3/8 in x 3/16 in Keyway Size, Round Keyed (MPN 5018 x 1-5/8)
MARTIN
MARTIN Chain Shaft Coupling Hub: 50, Steel, 2 in Bore Dia, 3/8 in x 3/16 in Keyway Size, Round Keyed (MPN 5018 x 1-5/8)
MARTIN Chain Shaft Coupling Hub: 50, Steel, 2 in Bore Dia, 3/8 in x 3/16 in Keyway Size, Round Keyed (MPN 5018 x 1-1/2)
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MARTIN Chain Shaft Coupling Hub: 50, Steel, 2 in Bore Dia, 3/8 in x 3/16 in Keyway Size, Round Keyed (MPN 5018 x 1-1/2)
MARTIN Chain Shaft Coupling Hub: 50, Steel, 2 in Bore Dia, 1/4 in x 1/8 in Keyway Size, Round Keyed (MPN 5018 x 1-1/4)
MARTIN
MARTIN Chain Shaft Coupling Hub: 50, Steel, 2 in Bore Dia, 1/4 in x 1/8 in Keyway Size, Round Keyed (MPN 5018 x 1-1/4)

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