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

MASTERDRIVE Coupling Flange: 8 Coupling Size, 4,500 RPM Max Speed, 5 29/64 in Outside Dia - Finished Bore Close-Coupled Flanges
MASTERDRIVEFinished Bore Close-Coupled Flanges

MASTERDRIVE Coupling Flange: 8 Coupling Size, 4,500 RPM Max Speed, 5 29/64 in Outside Dia

The MASTERDRIVE Coupling Flange: 8 Coupling Size is a finished bore close-coupled flange designed for industrial power transmission. This cast iron component features a round keyed bore, an outside diameter of 5…

SKU 3G-OTH-134606

Also listed as: 8S78 · 8S 7 8 · 8S-7-8

Brand
MASTERDRIVE
Item
Coupling Flange: 8 Coupling Size, 4,500 RPM Max Speed, 5 29/64 in Outside Dia
Category
Finished Bore Close-Coupled Flanges
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 — 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
8S-7/8
Type
Cast Iron
Max Speed
4,500 RPM
Outside Dia
5 29/64 in

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: 8 Coupling Size is a finished bore close-coupled flange designed for industrial power transmission. This cast iron component features a round keyed bore, an outside diameter of 5 29/64 inches, and a maximum speed rating of 4,500 RPM. The flange is manufactured in inch dimensions under MPN 8S-7/8.

Frequently Asked Questions

What is the MASTERDRIVE Coupling Flange 8S-7/8 used for?

The MASTERDRIVE Coupling Flange 8S-7/8 is a finished bore close-coupled flange used in industrial power transmission systems. It connects rotating shafts in pumps, compressors, and conveyors, transmitting torque reliably. The cast iron construction and round keyed bore suit heavy-duty applications requiring precise alignment and high durability.

What are the specifications of the MASTERDRIVE Coupling Flange 8S-7/8?

The MASTERDRIVE Coupling Flange 8S-7/8 has a coupling size of 8, a maximum speed of 4,500 RPM, and an outside diameter of 5 29/64 inches. It features a round keyed bore, inch dimensions, and is made of cast iron. The manufacturer part number is 8S-7/8, and the brand is MASTERDRIVE.

Where to buy the MASTERDRIVE Coupling Flange 8S-7/8 worldwide?

You can source the MASTERDRIVE Coupling Flange 8S-7/8 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; we supply this MASTERDRIVE flange to procurement teams and plant engineers internationally.

How to select the correct MASTERDRIVE Coupling Flange for your application?

To select the correct MASTERDRIVE Coupling Flange, match the coupling size, bore type (round keyed), and shaft diameter to your equipment. Verify the maximum speed rating of 4,500 RPM and outside diameter of 5 29/64 inches fit your space constraints. Consult the MASTERDRIVE catalog or contact 3G Electric for guidance on inch-dimension flanges.

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

Compatible alternatives & equivalents

Cross-referenced by specification & description
MASTERDRIVE Coupling Flange: 8 Coupling Size, 4,500 RPM Max Speed, 5 29/64 in Outside Dia, Cast Iron (MPN 8S-1-1/2)
MASTERDRIVE
MASTERDRIVE Coupling Flange: 8 Coupling Size, 4,500 RPM Max Speed, 5 29/64 in Outside Dia, Cast Iron (MPN 8S-1-1/2)
MASTERDRIVE Coupling Flange: 8 Coupling Size, 4,500 RPM Max Speed, 5 29/64 in Outside Dia, Cast Iron (MPN 8S-32MM)
MASTERDRIVE
MASTERDRIVE Coupling Flange: 8 Coupling Size, 4,500 RPM Max Speed, 5 29/64 in Outside Dia, Cast Iron (MPN 8S-32MM)
MASTERDRIVE Coupling Flange: 8 Coupling Size, 4,500 RPM Max Speed, 5 29/64 in Outside Dia, Cast Iron (MPN 8S-42MM)
MASTERDRIVE
MASTERDRIVE Coupling Flange: 8 Coupling Size, 4,500 RPM Max Speed, 5 29/64 in Outside Dia, Cast Iron (MPN 8S-42MM)
MASTERDRIVE Coupling Flange: 8 Coupling Size, 4,500 RPM Max Speed, 5 29/64 in Outside Dia, Cast Iron (MPN 8S-38MM)
MASTERDRIVE
MASTERDRIVE Coupling Flange: 8 Coupling Size, 4,500 RPM Max Speed, 5 29/64 in Outside Dia, Cast Iron (MPN 8S-38MM)
MASTERDRIVE Coupling Flange: 8 Coupling Size, 4,500 RPM Max Speed, 5 29/64 in Outside Dia, Cast Iron (MPN 8S-48MM)
MASTERDRIVE
MASTERDRIVE Coupling Flange: 8 Coupling Size, 4,500 RPM Max Speed, 5 29/64 in Outside Dia, Cast Iron (MPN 8S-48MM)
MASTERDRIVE Coupling Flange: 8 Coupling Size, 4,500 RPM Max Speed, 5 29/64 in Outside Dia, Cast Iron (MPN 8S-45MM)
MASTERDRIVE
MASTERDRIVE Coupling Flange: 8 Coupling Size, 4,500 RPM Max Speed, 5 29/64 in Outside Dia, Cast Iron (MPN 8S-45MM)

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)
MASTERDRIVE
MASTERDRIVE Coupling Flange: 12 Coupling Size, 2,800 RPM Max Speed, 10 in Outside Dia, Cast Iron (MPN 12S-3-7/8)
MASTERDRIVE Coupling Flange: 13 Coupling Size, 2,400 RPM Max Speed, 11 3/4 in Outside Dia, Cast Iron (MPN 13S-2-7/8)
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)
MASTERDRIVE Coupling Flange: 12 Coupling Size, 2,800 RPM Max Speed, 10 in Outside Dia, Cast Iron (MPN 12S-2-3/4)
MASTERDRIVE
MASTERDRIVE Coupling Flange: 12 Coupling Size, 2,800 RPM Max Speed, 10 in Outside Dia, Cast Iron (MPN 12S-2-3/4)
MASTERDRIVE Coupling Flange: 11 Coupling Size, 3,600 RPM Max Speed, 8 5/8 in Outside Dia, Cast Iron (MPN 11S-1-1/4)
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)
MASTERDRIVE Coupling Flange: 12 Coupling Size, 2,800 RPM Max Speed, 10 in Outside Dia, Cast Iron (MPN 12S-50MM)
MASTERDRIVE
MASTERDRIVE Coupling Flange: 12 Coupling Size, 2,800 RPM Max Speed, 10 in Outside Dia, Cast Iron (MPN 12S-50MM)
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)
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)
MASTERDRIVE Coupling Flange: 11 Coupling Size, 3,600 RPM Max Speed, 8 5/8 in Outside Dia, Cast Iron (MPN 11S-1-3/4)
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)
MASTERDRIVE Coupling Flange: 8 Coupling Size, 4,500 RPM Max Speed, 5 29/64 in Outside Dia, Cast Iron (MPN 8S-1-7/8)
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)