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MASTERDRIVE Coupling Flange: 9 Coupling Size, 3,750 RPM Max Speed, 6 11/32 in Outside Dia - Finished Bore Close-Coupled Flanges
MASTERDRIVEFinished Bore Close-Coupled Flanges

MASTERDRIVE Coupling Flange: 9 Coupling Size, 3,750 RPM Max Speed, 6 11/32 in Outside Dia

The MASTERDRIVE Coupling Flange: 9 Coupling Size is a Finished Bore Close-Coupled Flange from MASTERDRIVE. It features a Round Keyed bore in Inch dimensions, with a maximum speed of 3,750 RPM and an outside diameter…

SKU 3G-OTH-134588

Also listed as: 9S2 · 9S 2

Brand
MASTERDRIVE
Item
Coupling Flange: 9 Coupling Size, 3,750 RPM Max Speed, 6 11/32 in Outside Dia
Category
Finished Bore Close-Coupled Flanges
Available to Order
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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

MASTERDRIVE
Manufacturer Part Number
9S-2
Type
Cast Iron
Max Speed
3,750 RPM
Outside Dia
6 11/32 in

Technical Documents

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

Product Description

The MASTERDRIVE Coupling Flange: 9 Coupling Size is a Finished Bore Close-Coupled Flange from MASTERDRIVE. It features a Round Keyed bore in Inch dimensions, with a maximum speed of 3,750 RPM and an outside diameter of 6 11/32 in, constructed from Cast Iron (MPN 9S-2).

Frequently Asked Questions

What is a MASTERDRIVE coupling flange used for?

A MASTERDRIVE coupling flange connects a motor shaft to a driven component in power transmission systems. It is commonly used in industrial machinery, pumps, and conveyors where a rigid, close-coupled connection is required. The cast-iron construction provides durability in heavy-duty applications.

What are the specifications of the MASTERDRIVE 9S-2 coupling flange?

The MASTERDRIVE 9S-2 is a finished bore close-coupled flange with coupling size 9. It has a round keyed bore in inch dimensions, a maximum speed of 3,750 RPM, an outside diameter of 6 11/32 in, and is made of cast iron. The manufacturer part number is 9S-2.

Where to buy MASTERDRIVE coupling flanges worldwide?

MASTERDRIVE coupling flanges are available to order 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 the 9S-2 or other MASTERDRIVE parts.

How to select the correct MASTERDRIVE coupling flange?

To select the correct MASTERDRIVE coupling flange, match the coupling size, bore type (round keyed), and shaft diameter to your motor and driven equipment. Verify the maximum speed rating of 3,750 RPM and outside diameter of 6 11/32 in. Ensure the cast-iron material suits your operating environment.

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.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
MASTERDRIVE Coupling Flange: 9 Coupling Size, 3,750 RPM Max Speed, 6 11/32 in Outside Dia, Cast Iron (MPN 9S-2-1/2)
MASTERDRIVE
MASTERDRIVE Coupling Flange: 9 Coupling Size, 3,750 RPM Max Speed, 6 11/32 in Outside Dia, Cast Iron (MPN 9S-2-1/2)
MASTERDRIVE Coupling Flange: 9 Coupling Size, 3,750 RPM Max Speed, 6 11/32 in Outside Dia, Cast Iron (MPN 9S-2-1/16)
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MASTERDRIVE Coupling Flange: 9 Coupling Size, 3,750 RPM Max Speed, 6 11/32 in Outside Dia, Cast Iron (MPN 9S-2-1/16)
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MASTERDRIVE Coupling Flange: 9 Coupling Size, 3,750 RPM Max Speed, 6 11/32 in Outside Dia, Cast Iron (MPN 9S-1-9/16)
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MASTERDRIVE Coupling Flange: 9 Coupling Size, 3,750 RPM Max Speed, 6 11/32 in Outside Dia, Cast Iron (MPN 9S-2-1/4)
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MASTERDRIVE
MASTERDRIVE Coupling Flange: 9 Coupling Size, 3,750 RPM Max Speed, 6 11/32 in Outside Dia, Cast Iron (MPN 9S-1-7/8)
MASTERDRIVE Coupling Flange: 9 Coupling Size, 3,750 RPM Max Speed, 6 11/32 in Outside Dia, Cast Iron (MPN 9S-1-7/16)
MASTERDRIVE
MASTERDRIVE Coupling Flange: 9 Coupling Size, 3,750 RPM Max Speed, 6 11/32 in Outside Dia, Cast Iron (MPN 9S-1-7/16)

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