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MARTIN Chain Shaft Coupling Hub: 40, Steel, 7/8 in Bore Dia, 3/16 in x 3/32 in Keyway Size - Keyed Bore Chain Coupling Sprockets
MARTINKeyed Bore Chain Coupling Sprockets

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

Brand
MARTIN
Item
Chain Shaft Coupling Hub: 40, Steel, 7/8 in Bore Dia, 3/16 in x 3/32 in Keyway Size
Category
Keyed Bore Chain Coupling Sprockets
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Technical Specifications

MARTIN
Manufacturer Part Number
4012 x 3/4
Type
Steel
Teeth
12
Bore Dia
7/8 in
Keyway Size
3/16 in x 3/32 in
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Technical Documents

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

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.

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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MARTIN Chain Shaft Coupling Hub: 40, Steel, 7/8 in Bore Dia, 3/16 in x 3/32 in Keyway Size, 12 Teeth (MPN 4012 x 5/8). Key specifications — attr673435: Round Keyed; attr673436: 7/8 in; attr673438: 40; attr673457: Steel; attr85393: MARTIN.
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MARTIN Chain Shaft Coupling Hub: 40, Steel, 7/8 in Bore Dia, 3/16 in x 3/32 in Keyway Size, 12 Teeth (MPN 4012 x 5/8). Key specifications — attr673435: Round Keyed; attr673436: 7/8 in; attr673438: 40; attr673457: Steel; attr85393: MARTIN.
MARTIN Chain Shaft Coupling Hub: 40, Steel, 7/8 in Bore Dia, 1/8 in x 1/16 in Keyway Size, 12 Teeth (MPN 4012 x 1/2). Key specifications — attr673435: Round Keyed; attr673436: 7/8 in; attr673438: 40; attr673457: Steel; attr85393: MARTIN.
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MARTIN Chain Shaft Coupling Hub: 40, Steel, 1 5/16 in Bore Dia, 3/16 in x 3/32 in Keyway Size (MPN 4016 x 7/8). Key specifications — attr673435: Round Keyed; attr673436: 1-5/16 in; attr673438: 40; attr673457: Steel; attr85393: MARTIN.
MARTIN Chain Shaft Coupling Hub: 40, Steel, 1 5/16 in Bore Dia, 3/16 in x 3/32 in Keyway Size (MPN 4016 x 3/4). Key specifications — attr673435: Round Keyed; attr673436: 1-5/16 in; attr673438: 40; attr673457: Steel; attr85393: MARTIN.
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MARTIN Chain Shaft Coupling Hub: 40, Steel, 1 5/16 in Bore Dia, 3/16 in x 3/32 in Keyway Size (MPN 4016 x 3/4). Key specifications — attr673435: Round Keyed; attr673436: 1-5/16 in; attr673438: 40; attr673457: Steel; attr85393: MARTIN.
MARTIN Chain Shaft Coupling Hub: 40, Steel, 1 5/16 in Bore Dia, 3/16 in x 3/32 in Keyway Size (MPN 4016 x 5/8). Key specifications — attr673435: Round Keyed; attr673436: 1-5/16 in; attr673438: 40; attr673457: Steel; attr85393: MARTIN.
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MARTIN Chain Shaft Coupling Hub: 40, Steel, 1 5/16 in Bore Dia, 1/4 in x 1/8 in Keyway Size (MPN 4016 x 1-1/8). Key specifications — attr673435: Round Keyed; attr673436: 1-5/16 in; attr673438: 40; attr673457: Steel; attr85393: MARTIN.
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MARTIN Chain Shaft Coupling Hub: 40, Steel, 1 5/16 in Bore Dia, 1/4 in x 1/8 in Keyway Size (MPN 4016 x 1-1/8). Key specifications — attr673435: Round Keyed; attr673436: 1-5/16 in; attr673438: 40; attr673457: Steel; attr85393: MARTIN.

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