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

3G Electric
MASTERDRIVE Coupling Flange: 12 Coupling Size - Finished Bore Close-Coupled Flanges
MASTERDRIVEFinished Bore Close-Coupled Flanges

MASTERDRIVE Coupling Flange: 12 Coupling Size

The MASTERDRIVE Coupling Flange: 12 Coupling Size is a Finished Bore Close-Coupled Flange from MASTERDRIVE. It features a Round Keyed bore, Metric sizing, and a 50 mm bore diameter (MPN 12S-50MM). This cast iron…

SKU 3G-OTH-134722

Brand
MASTERDRIVE
Item
Coupling Flange: 12 Coupling Size
Category
Finished Bore Close-Coupled Flanges
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

MASTERDRIVE
attr85403
MASTERDRIVE
attr672366
Round Keyed
attr672411
Metric
Manufacturer Part Number
12S-50MM
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

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

Product Description

The MASTERDRIVE Coupling Flange: 12 Coupling Size is a Finished Bore Close-Coupled Flange from MASTERDRIVE. It features a Round Keyed bore, Metric sizing, and a 50 mm bore diameter (MPN 12S-50MM). This cast iron flange has a 10 in outside diameter and a maximum speed of 2,800 RPM.

Used in

Common applications for MASTERDRIVE
Pump drives — MASTERDRIVE finished bore close-coupled flanges (e.g., size 8, cast iron) for direct motor-to-pump shaft connections
Conveyor systems — MASTERDRIVE jaw coupling spiders (e.g., L099/100U) for light-duty power transmission between motor and gearbox
Compressor applications — MASTERDRIVE two-piece sleeve coupling inserts (e.g., 9N) for high-torque, moderate-speed compressor drives
Industrial fans — MASTERDRIVE QD bushed flanges (e.g., size 6, JA bushing) for quick installation on fan shafts
Mixer and agitator drives — MASTERDRIVE metric bore flanges (e.g., size 11, 52mm) for European-standard shaft connections
General power transmission — MASTERDRIVE coupling flanges in sizes 5-11 for connecting rotating equipment with parallel shafts

MASTERDRIVE Products

3G Electric supplies MASTERDRIVE finished bore close-coupled flanges. 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
MASTERDRIVE Coupling Flange: 12 Coupling Size, 2,800 RPM Max Speed, 10 in Outside Dia, Cast Iron (MPN 12S-65MM). Key specifications — attr672411: Metric; attr672366: Round Keyed; attr85403: MASTERDRIVE.
MASTERDRIVE
MASTERDRIVE Coupling Flange: 12 Coupling Size, 2,800 RPM Max Speed, 10 in Outside Dia, Cast Iron (MPN 12S-65MM). Key specifications — attr672411: Metric; attr672366: Round Keyed; attr85403: MASTERDRIVE.
MASTERDRIVE Coupling Flange: 12 Coupling Size, 2,800 RPM Max Speed, 10 in Outside Dia, Cast Iron (MPN 12S-60MM). Key specifications — attr672411: Metric; attr672366: Round Keyed; attr85403: MASTERDRIVE.
MASTERDRIVE
MASTERDRIVE Coupling Flange: 12 Coupling Size, 2,800 RPM Max Speed, 10 in Outside Dia, Cast Iron (MPN 12S-60MM). Key specifications — attr672411: Metric; attr672366: Round Keyed; attr85403: MASTERDRIVE.
MASTERDRIVE Coupling Flange: 12 Coupling Size, 2,800 RPM Max Speed, 10 in Outside Dia, Cast Iron (MPN 12S-70MM). Key specifications — attr672411: Metric; attr672366: Round Keyed; attr85403: MASTERDRIVE.
MASTERDRIVE
MASTERDRIVE Coupling Flange: 12 Coupling Size, 2,800 RPM Max Speed, 10 in Outside Dia, Cast Iron (MPN 12S-70MM). Key specifications — attr672411: Metric; attr672366: Round Keyed; attr85403: MASTERDRIVE.
MASTERDRIVE Coupling Flange: 12 Coupling Size, 2,800 RPM Max Speed, 10 in Outside Dia, Cast Iron (MPN 12S-80MM). Key specifications — attr672411: Metric; attr672366: Round Keyed; attr85403: MASTERDRIVE.
MASTERDRIVE
MASTERDRIVE Coupling Flange: 12 Coupling Size, 2,800 RPM Max Speed, 10 in Outside Dia, Cast Iron (MPN 12S-80MM). Key specifications — attr672411: Metric; attr672366: Round Keyed; attr85403: MASTERDRIVE.
MASTERDRIVE Coupling Flange: 12 Coupling Size, 2,800 RPM Max Speed, 10 in Outside Dia, Cast Iron (MPN 12S-3-7/8). Key specifications — attr672411: Inch; attr672366: Round Keyed; attr85403: MASTERDRIVE.
MASTERDRIVE
MASTERDRIVE Coupling Flange: 12 Coupling Size, 2,800 RPM Max Speed, 10 in Outside Dia, Cast Iron (MPN 12S-3-7/8). Key specifications — attr672411: Inch; attr672366: Round Keyed; attr85403: MASTERDRIVE.
MASTERDRIVE Coupling Flange: 12 Coupling Size, 2,800 RPM Max Speed, 10 in Outside Dia, Cast Iron (MPN 12S-2-7/8). Key specifications — attr672411: Inch; attr672366: Round Keyed; attr85403: MASTERDRIVE.
MASTERDRIVE
MASTERDRIVE Coupling Flange: 12 Coupling Size, 2,800 RPM Max Speed, 10 in Outside Dia, Cast Iron (MPN 12S-2-7/8). Key specifications — attr672411: Inch; attr672366: Round Keyed; attr85403: MASTERDRIVE.

More from MASTERDRIVE

View all MASTERDRIVE parts
MASTERDRIVE Coupling Flange: 5 Coupling Size, 7,600 RPM Max Speed, 3 1/4 in Outside Dia, Flange Hub (MPN 5S-19MM). Key specifications — attr672411: Metric; attr672366: Round Keyed; attr672381: Powdered Metal; attr85403: MASTERDRIVE.
MASTERDRIVE
MASTERDRIVE Coupling Flange: 5 Coupling Size, 7,600 RPM Max Speed, 3 1/4 in Outside Dia, Flange Hub (MPN 5S-19MM). Key specifications — attr672411: Metric; attr672366: Round Keyed; attr672381: Powdered Metal; attr85403: MASTERDRIVE.
MASTERDRIVE Coupling Flange: 6 Coupling Size, 6,000 RPM Max Speed, 4 in Outside Dia, Cast Iron, Inch (MPN 6S-1-1/8-RSB). Key specifications — attr672411: Inch; attr672366: Round; attr85403: MASTERDRIVE.
MASTERDRIVE
MASTERDRIVE Coupling Flange: 6 Coupling Size, 6,000 RPM Max Speed, 4 in Outside Dia, Cast Iron, Inch (MPN 6S-1-1/8-RSB). Key specifications — attr672411: Inch; attr672366: Round; attr85403: MASTERDRIVE.
MASTERDRIVE Coupling Flange: 7 Coupling Size, 5,250 RPM Max Speed, 4 5/8 in Outside Dia, Cast Iron (MPN 7S-1-1/4). Key specifications — attr672411: Inch; attr672366: Round Keyed; attr85403: MASTERDRIVE.
MASTERDRIVE
MASTERDRIVE Coupling Flange: 7 Coupling Size, 5,250 RPM Max Speed, 4 5/8 in Outside Dia, Cast Iron (MPN 7S-1-1/4). Key specifications — attr672411: Inch; attr672366: Round Keyed; attr85403: MASTERDRIVE.
MASTERDRIVE Coupling Flange: 9 Coupling Size, 3,750 RPM Max Speed, 6 11/32 in Outside Dia, Cast Iron (MPN 9S-2-3/8). Key specifications — attr672411: Inch; attr672366: Round Keyed; attr85403: MASTERDRIVE.
MASTERDRIVE
MASTERDRIVE Coupling Flange: 9 Coupling Size, 3,750 RPM Max Speed, 6 11/32 in Outside Dia, Cast Iron (MPN 9S-2-3/8). Key specifications — attr672411: Inch; attr672366: Round Keyed; attr85403: MASTERDRIVE.
MASTERDRIVE Coupling Flange: 8 Coupling Size, 4,500 RPM Max Speed, 5 29/64 in Outside Dia, Cast Iron (MPN 8S-1-1/8). Key specifications — attr672411: Inch; attr672366: Round Keyed; attr85403: MASTERDRIVE.
MASTERDRIVE
MASTERDRIVE Coupling Flange: 8 Coupling Size, 4,500 RPM Max Speed, 5 29/64 in Outside Dia, Cast Iron (MPN 8S-1-1/8). Key specifications — attr672411: Inch; attr672366: Round Keyed; attr85403: MASTERDRIVE.
MASTERDRIVE Coupling Flange: 6 Coupling Size, 6,000 RPM Max Speed, 4 in Outside Dia, Cast Iron, Inch (MPN 6S-1-7/8). Key specifications — attr672411: Inch; attr672366: Round Keyed; attr85403: MASTERDRIVE.
MASTERDRIVE
MASTERDRIVE Coupling Flange: 6 Coupling Size, 6,000 RPM Max Speed, 4 in Outside Dia, Cast Iron, Inch (MPN 6S-1-7/8). Key specifications — attr672411: Inch; attr672366: Round Keyed; attr85403: MASTERDRIVE.
MASTERDRIVE Coupling Flange: 11 Coupling Size, 3,600 RPM Max Speed, 8 5/8 in Outside Dia, Cast Iron (MPN 11S-48MM). Key specifications — attr672411: Metric; attr672366: Round Keyed; attr85403: MASTERDRIVE.
MASTERDRIVE
MASTERDRIVE Coupling Flange: 11 Coupling Size, 3,600 RPM Max Speed, 8 5/8 in Outside Dia, Cast Iron (MPN 11S-48MM). Key specifications — attr672411: Metric; attr672366: Round Keyed; attr85403: MASTERDRIVE.
MASTERDRIVE Coupling Flange: 12 Coupling Size, 2,800 RPM Max Speed, 10 in Outside Dia, Cast Iron (MPN 12S-3-5/8). Key specifications — attr672411: Inch; attr672366: Round Keyed; attr85403: MASTERDRIVE.
MASTERDRIVE
MASTERDRIVE Coupling Flange: 12 Coupling Size, 2,800 RPM Max Speed, 10 in Outside Dia, Cast Iron (MPN 12S-3-5/8). Key specifications — attr672411: Inch; attr672366: Round Keyed; attr85403: MASTERDRIVE.