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

3G Electric
MASTERDRIVE 4J-19MM General Purpose Straight Jaw Coupling Hub - General Purpose Straight Jaw Coupling Hubs
MASTERDRIVEGeneral Purpose Straight Jaw Coupling Hubs

MASTERDRIVE 4J-19MM General Purpose Straight Jaw Coupling Hub

The MASTERDRIVE Coupling Flange is a General Purpose Straight Jaw Coupling Hub with a 2 15/32 in outside diameter and a 2 3/8 in coupling overall length. This metric-type component, identified by manufacturer part…

SKU 3G-OTH-157294

Also listed as: 4J19MM · 4J 19MM

Brand
MASTERDRIVE
Item
4J-19MM General Purpose Straight Jaw Coupling Hub
Part Number
4J-19MM
Category
General Purpose Straight Jaw Coupling Hubs
Available to Order
Also known as:4J-19MMMASTERDRIVE
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
4J-19MM
Type
Metric
Coupling Overall Lg
2 3/8 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 is a General Purpose Straight Jaw Coupling Hub with a 2 15/32 in outside diameter and a 2 3/8 in coupling overall length. This metric-type component, identified by manufacturer part number 4J-19MM, is designed for industrial power transmission applications.

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 power transmission components.

What are the specifications of the MASTERDRIVE 4J-19MM coupling flange?

The MASTERDRIVE 4J-19MM is a metric general purpose straight jaw coupling hub. It has a 2 15/32 in outside diameter and a 2 3/8 in coupling overall length. This flange is designed for metric shaft applications and is sourced by 3G Electric for global industrial supply.

Where to buy a MASTERDRIVE coupling flange worldwide?

3G Electric supplies the MASTERDRIVE coupling flange worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for availability and lead time on this metric straight jaw coupling hub. We source genuine industrial components across 14 departments.

How to select the right MASTERDRIVE coupling flange for my application?

To select the correct MASTERDRIVE coupling flange, match the shaft diameter and keyway to your motor and driven equipment. Verify the outside diameter and overall length fit your space constraints. For metric applications, the 4J-19MM is a common choice. 3G Electric can help confirm compatibility.

Used in

Common applications for MASTERDRIVE
Pump drives — MASTERDRIVE L110 or L190 jaw coupling hubs with elastomeric spiders to accommodate misalignment between motor and pump shafts.
Gearbox input connections — MASTERDRIVE finished bore close-coupled flanges in size 10 or 11 for rigid mounting to gearbox shafts.
Conveyor systems — MASTERDRIVE straight jaw coupling hubs in L035 or L110 sizes for light-to-medium duty torque transmission.
Mixers and agitators — MASTERDRIVE cast iron close-coupled flanges with keyed bores for direct motor mounting in vertical or horizontal arrangements.
Compressor packages — MASTERDRIVE jaw coupling hubs and inserts for connecting motor shafts to compressor input shafts with vibration damping.
MRO spares — individual MASTERDRIVE hubs, flanges, and spiders for replacement of worn coupling components without full assembly changeout.
Not sure this is the right part? Photo-identify it→

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.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

More from MASTERDRIVE

View all MASTERDRIVE parts →
This inch-type straight jaw coupling hub has an outside diameter of 2 15/32 in and an overall length of 2 3/8 in. It is used in power transmission systems to connect a motor shaft to a driven component, such as in industrial machinery, pumps, and conveyors, where torque transfer and misalignment compensation are needed
MASTERDRIVE
This inch-type straight jaw coupling hub has an outside diameter of 2 15/32 in and an overall length of 2 3/8 in. It is used in power transmission systems to connect a motor shaft to a driven component, such as in industrial machinery, pumps, and conveyors, where torque transfer and misalignment compensation are needed
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

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first