Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
RFQ CartGet a QuoteSign inSign up
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 designed for industrial power transmission. This round, cast iron flange has a 6 11/32 in outside diameter and a maximum speed…

SKU 3G-OTH-134573

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
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
Manufacturer Part Number
9S-7/8-RSB
Type
Cast Iron
Max Speed
3,750 RPM
Outside Dia
6 11/32 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

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

Product Description

The MASTERDRIVE Coupling Flange: 9 Coupling Size is a finished bore close-coupled flange designed for industrial power transmission. This round, cast iron flange has a 6 11/32 in outside diameter and a maximum speed of 3,750 RPM, with inch-dimension specifications. The manufacturer part number is 9S-7/8-RSB.

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: 9 Coupling Size, 3,750 RPM Max Speed, 6 11/32 in Outside Dia, Cast Iron (MPN 9S-2-3/16). 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-2-3/16). 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: 9 Coupling Size, 3,750 RPM Max Speed, 6 11/32 in Outside Dia, Cast Iron (MPN 9S-2-7/8). 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-2-7/8). 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-1-5/8). 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-1-5/8). 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-1-7/8-RSB). Key specifications — attr672411: Inch; attr672366: Round; attr85403: MASTERDRIVE.
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-RSB). Key specifications — attr672411: Inch; attr672366: Round; attr85403: 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). 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-1-7/8). Key specifications — attr672411: Inch; attr672366: Round Keyed; attr85403: MASTERDRIVE.

More from MASTERDRIVE

View all MASTERDRIVE parts →
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-2-3/4). 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-2-3/4). Key specifications — attr672411: Inch; attr672366: Round Keyed; attr85403: MASTERDRIVE.
MASTERDRIVE Coupling Flange: 13 Coupling Size, 2,400 RPM Max Speed, 11 3/4 in Outside Dia, Cast Iron (MPN 13S-2-7/8). Key specifications — attr672411: Inch; attr672366: Round Keyed; attr85403: MASTERDRIVE.
MASTERDRIVE
MASTERDRIVE Coupling Flange: 13 Coupling Size, 2,400 RPM Max Speed, 11 3/4 in Outside Dia, Cast Iron (MPN 13S-2-7/8). 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-1-7/8). 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-1-7/8). 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-50MM). 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-50MM). Key specifications — attr672411: Metric; 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-1-3/4-RSB). Key specifications — attr672411: Inch; attr672366: Round; attr85403: MASTERDRIVE.
MASTERDRIVE
MASTERDRIVE Coupling Flange: 8 Coupling Size, 4,500 RPM Max Speed, 5 29/64 in Outside Dia, Cast Iron (MPN 8S-1-3/4-RSB). Key specifications — attr672411: Inch; attr672366: Round; attr85403: MASTERDRIVE.
MASTERDRIVE Coupling Flange: 11 Coupling Size, 3,600 RPM Max Speed, 8 5/8 in Outside Dia, Cast Iron (MPN 11S-1-3/4). Key specifications — attr672411: Inch; 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-1-3/4). 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-1-1/4). Key specifications — attr672411: Inch; 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-1-1/4). Key specifications — attr672411: Inch; attr672366: Round Keyed; attr85403: MASTERDRIVE.