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MASTERDRIVE Coupling Flange: 4 in Outside Dia, 3 5/16 in Coupling Overall Lg, Inch - General Purpose Straight Jaw Coupling Hubs
MASTERDRIVEGeneral Purpose Straight Jaw Coupling Hubs

MASTERDRIVE Coupling Flange: 4 in Outside Dia, 3 5/16 in Coupling Overall Lg, Inch

The MASTERDRIVE Coupling Flange is a general purpose straight jaw coupling hub with a 4 in outside diameter and a 7/8 in bore diameter. It has an overall length of 3 5/16 in and is an inch-type component (MPN 6J-7/8).

SKU 3G-OTH-157282

Also listed as: 6J78 · 6J 7 8 · 6J-7-8

Brand
MASTERDRIVE
Item
Coupling Flange: 4 in Outside Dia, 3 5/16 in Coupling Overall Lg, Inch
Category
General Purpose Straight Jaw Coupling Hubs
Available to Order
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Technical specs
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

MASTERDRIVE
Manufacturer Part Number
6J-7/8
Type
Inch
Bore Dia
7/8 in
Coupling Overall Lg
3 5/16 in

Technical Documents

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

Product Description

The MASTERDRIVE Coupling Flange is a general purpose straight jaw coupling hub with a 4 in outside diameter and a 7/8 in bore diameter. It has an overall length of 3 5/16 in and is an inch-type component (MPN 6J-7/8).

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is a MASTERDRIVE coupling flange used for?

A MASTERDRIVE coupling flange connects a motor shaft to a driven component such as a pump or gearbox. It is a general-purpose straight jaw coupling hub designed for inch-dimension systems. Common applications include industrial machinery, conveyors, and power transmission equipment where misalignment compensation and torque transfer are required.

What are the specifications of the MASTERDRIVE 6J-7/8 coupling flange?

The MASTERDRIVE 6J-7/8 is an inch-type straight jaw coupling hub with a 7/8 in bore diameter, 4 in outside diameter, and 3 5/16 in coupling overall length. It is manufactured by MASTERDRIVE under part number 6J-7/8. This flange is designed for general-purpose power transmission applications.

Where to buy MASTERDRIVE coupling flanges worldwide?

3G Electric supplies MASTERDRIVE coupling flanges worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on the MASTERDRIVE 6J-7/8 or other inch-type coupling hubs.

How to select the correct MASTERDRIVE coupling flange?

To select the correct MASTERDRIVE coupling flange, match the bore diameter to your shaft size (e.g., 7/8 in), verify the outside diameter and overall length fit your application space, and confirm the inch-type system. Always check torque requirements and alignment tolerances per MASTERDRIVE guidelines for reliable power transmission.

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 general purpose straight jaw coupling hubs. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
MASTERDRIVE Coupling Flange: 4 in Outside Dia, 3 5/16 in Coupling Overall Lg, Inch (MPN 6J-1-3/8)
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MASTERDRIVE Coupling Flange: 4 in Outside Dia, 3 5/16 in Coupling Overall Lg, Inch, 3/16 in Bore Dia (MPN 6J-1-3/16)
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MASTERDRIVE Coupling Flange: 4 in Outside Dia, 3 5/16 in Coupling Overall Lg, Inch, 3/4 in Bore Dia (MPN 6J-3/4)
MASTERDRIVE Coupling Flange: 4 in Outside Dia, 3 5/16 in Coupling Overall Lg, Inch (MPN 6J-15/16)
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