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MASTERDRIVE 9S-7/8-RSB Finished Bore Close-Coupled Flange - Finished Bore Close-Coupled Flanges
MASTERDRIVEFinished Bore Close-Coupled Flanges

MASTERDRIVE 9S-7/8-RSB Finished Bore Close-Coupled Flange

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

Also listed as: 9S78RSB · 9S 7 8 RSB · 9S-7-8-RSB

Brand
MASTERDRIVE
Item
9S-7/8-RSB Finished Bore Close-Coupled Flange
Part Number
9S-7/8-RSB
Category
Finished Bore Close-Coupled Flanges
Available to Order
Also known as:9S-7/8-RSBMASTERDRIVE
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

MASTERDRIVE
Manufacturer Part Number
9S-7/8-RSB
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 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.

Frequently Asked Questions

What is a MASTERDRIVE coupling flange used for?

A MASTERDRIVE coupling flange connects a motor shaft to driven equipment in power transmission systems. This finished bore close-coupled flange, size 9, handles up to 3,750 RPM and is suited for industrial machinery requiring a rigid, cast iron connection.

What are the specifications of the MASTERDRIVE 9S-7/8-RSB coupling flange?

The MASTERDRIVE 9S-7/8-RSB is a round, cast iron coupling flange with a 6 11/32 in outside diameter, inch-dimension specs, and a maximum speed of 3,750 RPM. It is a finished bore close-coupled flange for size 9 couplings.

Where to buy MASTERDRIVE coupling flanges worldwide?

3G Electric supplies MASTERDRIVE coupling flanges worldwide, handling full logistics and customs clearance. As a global industrial sourcing partner, we provide the MASTERDRIVE 9S-7/8-RSB and other power transmission components to customers internationally.

How to select the correct MASTERDRIVE coupling flange size?

Select the MASTERDRIVE coupling flange by matching the coupling size (e.g., size 9), shaft diameter, and bore type to your motor and driven equipment. Verify outside diameter (6 11/32 in) and max speed (3,750 RPM) against application requirements. Consult a power transmission specialist for proper fit.

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
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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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This finished bore close-coupled flange is used to connect a motor shaft to a driven component in power transmission systems. It features a round keyed metric bore and is constructed from cast iron. With a maximum speed of 3,750 RPM and an outside diameter of 6 11/32 inches, it is suitable for applications requiring a compact, rigid connection
MASTERDRIVE
This finished bore close-coupled flange is used to connect a motor shaft to a driven component in power transmission systems. It features a round keyed metric bore and is constructed from cast iron. With a maximum speed of 3,750 RPM and an outside diameter of 6 11/32 inches, it is suitable for applications requiring a compact, rigid connection
Cast iron finished bore close-coupled flange with a round keyed bore. Outside diameter 5 29/64 inches, maximum speed 4,500 RPM. Used in power transmission systems to connect rotating shafts in pumps, compressors, and conveyors
MASTERDRIVE
Cast iron finished bore close-coupled flange with a round keyed bore. Outside diameter 5 29/64 inches, maximum speed 4,500 RPM. Used in power transmission systems to connect rotating shafts in pumps, compressors, and conveyors

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