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MASTERDRIVE Coupling Flange: 12 Coupling Size, 2,800 RPM Max Speed, 10 in Outside Dia - Finished Bore Close-Coupled Flanges
MASTERDRIVEFinished Bore Close-Coupled Flanges

MASTERDRIVE Coupling Flange: 12 Coupling Size, 2,800 RPM Max Speed, 10 in Outside Dia

The MASTERDRIVE Coupling Flange: 12 Coupling Size is a finished bore close-coupled flange from MASTERDRIVE. It features a round keyed bore, inch dimensions, a 2,800 RPM max speed, a 10 in outside diameter, and is…

SKU 3G-OTH-134726

Also listed as: 12S338 · 12S 3 3 8 · 12S-3-3-8

Brand
MASTERDRIVE
Item
Coupling Flange: 12 Coupling Size, 2,800 RPM Max Speed, 10 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
12S-3-3/8
Type
Cast Iron
Max Speed
2,800 RPM
Outside Dia
10 in

Technical Documents

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

Product Description

The MASTERDRIVE Coupling Flange: 12 Coupling Size is a finished bore close-coupled flange from MASTERDRIVE. It features a round keyed bore, inch dimensions, a 2,800 RPM max speed, a 10 in outside diameter, and is made of cast iron (MPN 12S-3-3/8).

Frequently Asked Questions

What is a MASTERDRIVE coupling flange used for?

A MASTERDRIVE coupling flange connects a motor shaft to a driven component in industrial power transmission systems. It is commonly used in pumps, compressors, and conveyor drives 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 12S-3-3/8 coupling flange?

The MASTERDRIVE 12S-3-3/8 is a finished bore close-coupled flange with coupling size 12, a round keyed bore, inch dimensions, 2,800 RPM max speed, 10 in outside diameter, and cast iron construction. It is designed for direct shaft mounting and is manufactured by MASTERDRIVE.

Where to buy MASTERDRIVE coupling flanges worldwide?

3G Electric supplies MASTERDRIVE coupling flanges worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time on the 12S-3-3/8 or other MASTERDRIVE coupling components.

How to select the correct MASTERDRIVE coupling flange size?

To select the correct MASTERDRIVE coupling flange, match the coupling size (e.g., 12) to your shaft diameter and keyway dimensions. Verify the bore type (round keyed), max speed (2,800 RPM), and outside diameter (10 in) meet your application requirements. Consult the MASTERDRIVE catalog for torque ratings and fit specifications.

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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