We ship worldwide — Singapore, Australia, Malaysia, Indonesia, Philippines, India, Middle East & more

3G Electric
⌕
RFQ CartGet a QuoteSign inSign up
MARTIN Chain Shaft Coupling Hub: 40, Steel, 7/8 in Bore Dia, 1/8 in x 1/16 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, 1/8 in x 1/16 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 1/8 in x 1/16 in keyway size and 12 teeth. This component is…

SKU 3G-OTH-133031

Brand
MARTIN
Item
Chain Shaft Coupling Hub: 40, Steel, 7/8 in Bore Dia, 1/8 in x 1/16 in Keyway Size
Category
Keyed Bore Chain Coupling Sprockets
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

MARTIN
Manufacturer Part Number
4012 x 1/2
Type
Steel
Teeth
12
Bore Dia
7/8 in
Keyway Size
1/8 in x 1/16 in
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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 1/8 in x 1/16 in keyway size and 12 teeth. This component is identified by manufacturer part number 4012 x 1/2.

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.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

Similar products

Matched by specification & description
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
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, 3/16 in x 3/32 in Keyway Size, 12 Teeth (MPN 4012 x 3/4). Key specifications — attr673435: Round Keyed; attr673436: 7/8 in; attr673438: 40; attr673457: Steel; attr85393: MARTIN.
MARTIN
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 3/4). Key specifications — attr673435: Round Keyed; attr673436: 7/8 in; attr673438: 40; attr673457: Steel; attr85393: MARTIN.
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 1-1/4). Key specifications — attr673435: Round Keyed; attr673436: 1-5/16 in; attr673438: 40; attr673457: Steel; attr85393: MARTIN.
MARTIN
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 1-1/4). 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 7/8). Key specifications — attr673435: Round Keyed; attr673436: 1-5/16 in; attr673438: 40; attr673457: Steel; attr85393: MARTIN.
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 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, 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.
MARTIN
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.
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 1-3/16). Key specifications — attr673435: Round Keyed; attr673436: 1-5/16 in; attr673438: 40; attr673457: Steel; attr85393: MARTIN.
MARTIN
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 1-3/16). Key specifications — attr673435: Round Keyed; attr673436: 1-5/16 in; attr673438: 40; attr673457: Steel; attr85393: MARTIN.

More from MARTIN

View all MARTIN parts →
MARTIN Chain Shaft Coupling Hub: 80, Steel, 3 1/8 in Bore Dia, 5/8 in x 5/16 in Keyway Size (MPN 8018 x 2-7/16). Key specifications — attr673435: Round Keyed; attr673436: 3-1/8 in; attr673438: 80; attr673457: Steel; attr85393: MARTIN.
MARTIN
MARTIN Chain Shaft Coupling Hub: 80, Steel, 3 1/8 in Bore Dia, 5/8 in x 5/16 in Keyway Size (MPN 8018 x 2-7/16). Key specifications — attr673435: Round Keyed; attr673436: 3-1/8 in; attr673438: 80; attr673457: Steel; attr85393: MARTIN.
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 15/16). Key specifications — attr673435: Round Keyed; attr673436: 1-5/16 in; attr673438: 40; attr673457: Steel; attr85393: MARTIN.
MARTIN
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 15/16). Key specifications — attr673435: Round Keyed; attr673436: 1-5/16 in; attr673438: 40; attr673457: Steel; attr85393: MARTIN.
MARTIN Chain Shaft Coupling Hub: 60, Steel, 2 7/16 in Bore Dia, 5/8 in x 5/16 in Keyway Size (MPN 6018 x 2-3/8). Key specifications — attr673435: Round Keyed; attr673436: 2-7/16 in; attr673438: 60; attr673457: Steel; attr85393: MARTIN.
MARTIN
MARTIN Chain Shaft Coupling Hub: 60, Steel, 2 7/16 in Bore Dia, 5/8 in x 5/16 in Keyway Size (MPN 6018 x 2-3/8). Key specifications — attr673435: Round Keyed; attr673436: 2-7/16 in; attr673438: 60; attr673457: Steel; attr85393: MARTIN.
MARTIN Chain Shaft Coupling Hub: 60, Steel, 2 7/16 in Bore Dia, 3/8 in x 3/16 in Keyway Size (MPN 6018 x 1-7/16). Key specifications — attr673435: Round Keyed; attr673436: 2-7/16 in; attr673438: 60; attr673457: Steel; attr85393: MARTIN.
MARTIN
MARTIN Chain Shaft Coupling Hub: 60, Steel, 2 7/16 in Bore Dia, 3/8 in x 3/16 in Keyway Size (MPN 6018 x 1-7/16). Key specifications — attr673435: Round Keyed; attr673436: 2-7/16 in; attr673438: 60; attr673457: Steel; attr85393: MARTIN.
MARTIN Chain Shaft Coupling Hub: 60, Steel, 2 7/16 in Bore Dia, 5/8 in x 5/16 in Keyway Size (MPN 6018 x 2-7/16). Key specifications — attr673435: Round Keyed; attr673436: 2-7/16 in; attr673438: 60; attr673457: Steel; attr85393: MARTIN.
MARTIN
MARTIN Chain Shaft Coupling Hub: 60, Steel, 2 7/16 in Bore Dia, 5/8 in x 5/16 in Keyway Size (MPN 6018 x 2-7/16). Key specifications — attr673435: Round Keyed; attr673436: 2-7/16 in; attr673438: 60; 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.
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.
MARTIN Chain Shaft Coupling Hub: 60, Steel, 2 7/16 in Bore Dia, 5/16 in x 5/32 in Keyway Size (MPN 6018 x 1-3/8). Key specifications — attr673435: Round Keyed; attr673436: 2-7/16 in; attr673438: 60; attr673457: Steel; attr85393: MARTIN.
MARTIN
MARTIN Chain Shaft Coupling Hub: 60, Steel, 2 7/16 in Bore Dia, 5/16 in x 5/32 in Keyway Size (MPN 6018 x 1-3/8). Key specifications — attr673435: Round Keyed; attr673436: 2-7/16 in; attr673438: 60; attr673457: Steel; attr85393: MARTIN.
MARTIN Chain Shaft Coupling Hub: 80, Steel, 3 1/8 in Bore Dia, 3/8 in x 3/16 in Keyway Size (MPN 8018 x 1-3/4). Key specifications — attr673435: Round Keyed; attr673436: 3-1/8 in; attr673438: 80; attr673457: Steel; attr85393: MARTIN.
MARTIN
MARTIN Chain Shaft Coupling Hub: 80, Steel, 3 1/8 in Bore Dia, 3/8 in x 3/16 in Keyway Size (MPN 8018 x 1-3/4). Key specifications — attr673435: Round Keyed; attr673436: 3-1/8 in; attr673438: 80; attr673457: Steel; attr85393: MARTIN.