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MASTERDRIVE L190-1-3/8 General Purpose Straight Jaw Coupling Hub - General Purpose Straight Jaw Coupling Hubs
MASTERDRIVEGeneral Purpose Straight Jaw Coupling Hubs

MASTERDRIVE L190-1-3/8 General Purpose Straight Jaw Coupling Hub

The MASTERDRIVE Jaw Coupling Hub is a general purpose straight jaw coupling hub in L190 coupling size, with a 4 1/2 in outside diameter and 5 1/4 in overall length (MPN L190-1-3/8). 3G Electric interprets demand for…

SKU 3G-OTH-157351

Also listed as: L190138 · L190 1 3 8 · L190-1-3-8

Brand
MASTERDRIVE
Item
L190-1-3/8 General Purpose Straight Jaw Coupling Hub
Part Number
L190-1-3/8
Category
General Purpose Straight Jaw Coupling Hubs
Available to Order
Also known as:L190-1-3/8MASTERDRIVE
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Local availability & support

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

MASTERDRIVE
Manufacturer Part Number
L190-1-3/8
Outside Dia
4 1/2 in
Coupling Overall Lg
5 1/4 in

Technical Documents

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

Product Description

The MASTERDRIVE Jaw Coupling Hub is a general purpose straight jaw coupling hub in L190 coupling size, with a 4 1/2 in outside diameter and 5 1/4 in overall length (MPN L190-1-3/8). 3G Electric interprets demand for this OEM component across 14 industrial departments — and we supply far more than is listed — with specialist depth in combustion, pumps and controls as a trust anchor.

Frequently Asked Questions

What is a MASTERDRIVE L190 jaw coupling hub used for?

The MASTERDRIVE L190-1-3/8 jaw coupling hub connects a motor shaft to a driven component in power transmission systems. It is used in pumps, conveyors, and industrial machinery to transmit torque while accommodating minor misalignment. 3G Electric supplies this hub as part of a broad industrial offering.

What are the specifications of the MASTERDRIVE L190-1-3/8 jaw coupling hub?

This MASTERDRIVE hub has a 4 1/2 in outside diameter and a 5 1/4 in coupling overall length. It is a general purpose straight jaw coupling hub sized L190. The manufacturer part number is L190-1-3/8. 3G Electric sources this component for global delivery.

Where to buy a MASTERDRIVE L190-1-3/8 jaw coupling hub worldwide?

3G Electric supplies the MASTERDRIVE L190-1-3/8 jaw coupling hub to customers worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for a quote and lead time on this power transmission component.

How to select the correct MASTERDRIVE jaw coupling hub size?

Select the MASTERDRIVE hub by matching the coupling size (L190) to your application's torque and shaft diameter requirements. Verify the outside diameter (4 1/2 in) and overall length (5 1/4 in) fit your assembly. 3G Electric can help confirm compatibility with your existing coupling spider.

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.
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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 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
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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

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