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

MARTIN Chain Shaft Coupling Hub: 80, Steel, 3 in Bore Dia, For Keyed Shaft Type - Taper Bushed Bore Coupling Sprockets
MARTINTaper Bushed Bore Coupling Sprockets

MARTIN Chain Shaft Coupling Hub: 80, Steel, 3 in Bore Dia, For Keyed Shaft Type

The MARTIN Chain Shaft Coupling Hub: 80 is a taper bushed bore coupling sprocket made of steel, featuring a round keyed bore and a hub diameter of 5 3/8 in. It is designed for bushing size 3020 with a bushing bore…

SKU 3G-OTH-126715

Also listed as: 8020 TBH · 8020-TBH

Brand
MARTIN
Item
Chain Shaft Coupling Hub: 80, Steel, 3 in Bore Dia, For Keyed Shaft Type
Category
Taper Bushed Bore Coupling Sprockets
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
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

Local availability & support

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

MARTIN
Manufacturer Part Number
8020TBH
Type
Steel, For Keyed Shaft Type
Hub Dia
5 3/8 in
Bore Dia
3 in
Bore Type
Round Keyed
Chain Number
80
Hub Material
Steel
For Bushing Size
3020
Bushing Bore Range
15/16 to 3 in
Bushing Install Location
Hub Side

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: 80 is a taper bushed bore coupling sprocket made of steel, featuring a round keyed bore and a hub diameter of 5 3/8 in. It is designed for bushing size 3020 with a bushing bore range of 15/16 to 3 in, and the bushing installs on the hub side. This component uses chain number 80 and is identified by manufacturer part number 8020TBH.

Frequently Asked Questions

What is the MARTIN 8020TBH chain shaft coupling hub used for?

The MARTIN 8020TBH is a taper bushed bore coupling sprocket used to connect two shafts in power transmission systems, commonly in conveyors and industrial machinery. It accommodates a keyed shaft and uses chain number 80 to transmit torque reliably in heavy-duty applications.

What are the specifications of the MARTIN 8020TBH coupling hub?

The MARTIN 8020TBH coupling hub has a 3 in bore diameter, round keyed bore type, and a 5 3/8 in hub diameter. It is made of steel, fits bushing size 3020, supports a bushing bore range of 15/16 to 3 in, and uses chain number 80. The bushing installs on the hub side.

Where to buy the MARTIN 8020TBH coupling hub worldwide?

You can source the MARTIN 8020TBH coupling hub through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time on this MARTIN taper bushed bore coupling sprocket.

How to select the correct MARTIN taper bushed bore coupling sprocket?

To select the correct MARTIN taper bushed bore coupling sprocket, match the bore diameter to your shaft size, verify the chain number (80) matches your chain pitch, and confirm the bushing size (3020) fits your hub. Ensure the keyed bore type aligns with your shaft keyway for proper installation.

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 taper bushed bore 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

Compatible alternatives & equivalents

Cross-referenced by specification & description
MARTIN Chain Shaft Coupling Hub: 50, Steel, 1 5/8 in Bore Dia, For Keyed Shaft Type, Round Keyed (MPN 5018TBH)
MARTIN
MARTIN Chain Shaft Coupling Hub: 50, Steel, 1 5/8 in Bore Dia, For Keyed Shaft Type, Round Keyed (MPN 5018TBH)
MARTIN Chain Shaft Coupling Hub: 80, Steel, 3 9/16 in Bore Dia, For Keyed Shaft Type, Round Keyed (MPN 8020)
MARTIN
MARTIN Chain Shaft Coupling Hub: 80, Steel, 3 9/16 in Bore Dia, For Keyed Shaft Type, Round Keyed (MPN 8020)
MARTIN Chain Shaft Coupling Hub: 80, Steel, 3 9/16 in Bore Dia, 7/8 in x 7/16 in Keyway Size (MPN 8020 x 3-7/16)
MARTIN
MARTIN Chain Shaft Coupling Hub: 80, Steel, 3 9/16 in Bore Dia, 7/8 in x 7/16 in Keyway Size (MPN 8020 x 3-7/16)
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)
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)

More from MARTIN

View all MARTIN parts
MARTIN Chain Shaft Coupling Hub: 40, Steel, 1 1/8 in Bore Dia, For Keyed Shaft Type, Round Keyed (MPN 4016TBH)
MARTIN
MARTIN Chain Shaft Coupling Hub: 40, Steel, 1 1/8 in Bore Dia, For Keyed Shaft Type, Round Keyed (MPN 4016TBH)
MARTIN Chain Shaft Coupling Hub: 80, Steel, 3 in Bore Dia, For Keyed Shaft Type, 5 3/8 in Hub Dia (MPN 8020TBF)
MARTIN
MARTIN Chain Shaft Coupling Hub: 80, Steel, 3 in Bore Dia, For Keyed Shaft Type, 5 3/8 in Hub Dia (MPN 8020TBF)
MARTIN Chain Shaft Coupling Hub: 50, Steel, 1 5/8 in Bore Dia, For Keyed Shaft Type, Round Keyed (MPN 5018TBF)
MARTIN
MARTIN Chain Shaft Coupling Hub: 50, Steel, 1 5/8 in Bore Dia, For Keyed Shaft Type, Round Keyed (MPN 5018TBF)
MARTIN Chain Shaft Coupling Hub: 60, Steel, 2 in Bore Dia, For Keyed Shaft Type, 3 7/8 in Hub Dia (MPN 6020TBF)
MARTIN
MARTIN Chain Shaft Coupling Hub: 60, Steel, 2 in Bore Dia, For Keyed Shaft Type, 3 7/8 in Hub Dia (MPN 6020TBF)
MARTIN Chain Shaft Coupling Hub: 40, Steel, 1 1/8 in Bore Dia, For Keyed Shaft Type, Round Keyed (MPN 4016TBF)
MARTIN
MARTIN Chain Shaft Coupling Hub: 40, Steel, 1 1/8 in Bore Dia, For Keyed Shaft Type, Round Keyed (MPN 4016TBF)
MARTIN Chain Shaft Coupling Hub: 60, Steel, 2 in Bore Dia, For Keyed Shaft Type, 3 7/8 in Hub Dia (MPN 6020TBH)
MARTIN
MARTIN Chain Shaft Coupling Hub: 60, Steel, 2 in Bore Dia, For Keyed Shaft Type, 3 7/8 in Hub Dia (MPN 6020TBH)
MARTIN Chain Shaft Coupling Hub: 100, Steel, 3 1/2 in Bore Dia, For Keyed Shaft Type, Round Keyed (MPN 10020TBF)
MARTIN
MARTIN Chain Shaft Coupling Hub: 100, Steel, 3 1/2 in Bore Dia, For Keyed Shaft Type, Round Keyed (MPN 10020TBF)
MARTIN Chain Shaft Coupling Hub: 100, Steel, 3 1/2 in Bore Dia, For Keyed Shaft Type, Round Keyed (MPN 10020TBH)
MARTIN
MARTIN Chain Shaft Coupling Hub: 100, Steel, 3 1/2 in Bore Dia, For Keyed Shaft Type, Round Keyed (MPN 10020TBH)