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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 round, cast-iron flange has a 5 29/64-inch outside diameter and a maximum…

SKU 3G-OTH-134627

Also listed as: 8S134RSB · 8S 1 3 4 RSB · 8S-1-3-4-RSB

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
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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
8S-1-3/4-RSB
Type
Cast Iron
Max Speed
4,500 RPM
Outside Dia
5 29/64 in

Technical Documents

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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 round, cast-iron flange has a 5 29/64-inch outside diameter and a maximum speed of 4,500 RPM, with inch-dimension specifications. It is identified by manufacturer part number 8S-1-3/4-RSB.

Frequently Asked Questions

What is a MASTERDRIVE coupling flange used for?

A MASTERDRIVE coupling flange connects rotating shafts in industrial power transmission systems. This finished bore close-coupled flange, size 8, handles up to 4,500 RPM and is made of cast iron. It is commonly used in pumps, conveyors, and gearboxes where a rigid, compact coupling is required.

What are the specifications of the MASTERDRIVE 8S-1-3/4-RSB coupling flange?

The MASTERDRIVE 8S-1-3/4-RSB is a round, cast-iron coupling flange with a 5 29/64-inch outside diameter. It has a maximum speed of 4,500 RPM and uses inch-dimension specifications. The coupling size is 8, and it is a finished bore close-coupled flange for industrial power transmission.

Where to buy a MASTERDRIVE coupling flange worldwide?

3G Electric supplies the MASTERDRIVE coupling flange worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us to order the 8S-1-3/4-RSB or other MASTERDRIVE power transmission components for your application.

How to select the right MASTERDRIVE coupling flange for a pump?

To select the correct MASTERDRIVE coupling flange, match the coupling size (here size 8) to your shaft diameter and torque requirements. Verify the maximum speed (4,500 RPM) exceeds your operating speed. Ensure the flange outside diameter (5 29/64 in) fits your housing. Consult the pump manufacturer's recommendations for bore and keyway dimensions.

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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MASTERDRIVE Coupling Flange: 8 Coupling Size, 4,500 RPM Max Speed, 5 29/64 in Outside Dia, Cast Iron (MPN 8S-1-1/4-RSB)
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MASTERDRIVE Coupling Flange: 8 Coupling Size, 4,500 RPM Max Speed, 5 29/64 in Outside Dia, Cast Iron (MPN 8S-1-3/4)
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