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MASTERDRIVE 3J-3/8 General Purpose Straight Jaw Coupling Hub - General Purpose Straight Jaw Coupling Hubs
MASTERDRIVEGeneral Purpose Straight Jaw Coupling Hubs

MASTERDRIVE 3J-3/8 General Purpose Straight Jaw Coupling Hub

The MASTERDRIVE Coupling Flange is a general purpose straight jaw coupling hub with a 2 1/16 in outside diameter and 2 in overall length. This inch-type hub features a 3/8 in bore diameter (MPN 3J-3/8). 3G Electric…

SKU 3G-OTH-157297

Also listed as: 3J38 · 3J 3 8 · 3J-3-8

Brand
MASTERDRIVE
Item
3J-3/8 General Purpose Straight Jaw Coupling Hub
Part Number
3J-3/8
Category
General Purpose Straight Jaw Coupling Hubs
Available to Order
Also known as:3J-3/8MASTERDRIVE
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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
3J-3/8
Type
Inch
Bore Dia
3/8 in
Coupling Overall Lg
2 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 2 1/16 in outside diameter and 2 in overall length. This inch-type hub features a 3/8 in bore diameter (MPN 3J-3/8). 3G Electric interprets your demand for this MASTERDRIVE component and delivers it with specialist support across 14 industrial departments.

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 in power transmission systems. It is used across industrial machinery, pumps, and conveyors to transmit torque while accommodating minor misalignment. 3G Electric supplies this flange as part of a broad range of mechanical power transmission components.

What are the specifications of the MASTERDRIVE 3J-3/8 coupling flange?

The MASTERDRIVE 3J-3/8 is an inch-type general purpose straight jaw coupling hub. It has a 3/8 in bore diameter, 2 in overall coupling length, and 2 1/16 in outside diameter. The manufacturer part number is 3J-3/8. 3G Electric sources this genuine MASTERDRIVE component for global delivery.

Where to buy a MASTERDRIVE coupling flange worldwide?

3G Electric supplies the MASTERDRIVE 3J-3/8 coupling flange to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this genuine MASTERDRIVE part.

How to select the right MASTERDRIVE coupling hub?

To select the correct MASTERDRIVE coupling hub, match the bore diameter to your shaft size (here 3/8 in), confirm the coupling overall length fits your space, and verify the outside diameter aligns with the mating jaw. Always check the manufacturer part number (3J-3/8) for exact fit. 3G Electric can help verify compatibility.

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 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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This straight jaw coupling hub is designed for light-duty power transmission applications such as small pumps, conveyors, and machine tools. It has an outside diameter of 1 3/8 inches and a power rating of 0.181 hp. The hub is made of Hytrel material and is intended for use with a mating jaw coupling spider
MASTERDRIVE
This straight jaw coupling hub is designed for light-duty power transmission applications such as small pumps, conveyors, and machine tools. It has an outside diameter of 1 3/8 inches and a power rating of 0.181 hp. The hub is made of Hytrel material and is intended for use with a mating jaw coupling spider

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