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MASTERDRIVE Jaw Coupling Spider: L190 Coupling Size, 4 1/2 in Outside Dia, Inch - General Purpose Straight Jaw Coupling Hubs
MASTERDRIVEGeneral Purpose Straight Jaw Coupling Hubs

MASTERDRIVE Jaw Coupling Spider: L190 Coupling Size, 4 1/2 in Outside Dia, Inch

The MASTERDRIVE L190B is a general purpose straight jaw coupling hub with a 4 1/2 in outside diameter, rated for 7.426 hp and a maximum speed of 250 RPM. This inch-sized coupling hub is designed for use with the L190…

SKU 3G-OTH-157278

Brand
MASTERDRIVE
Item
Jaw Coupling Spider: L190 Coupling Size, 4 1/2 in Outside Dia, Inch
Category
General Purpose Straight Jaw Coupling Hubs
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Payment
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Technical Specifications

MASTERDRIVE
Manufacturer Part Number
L190B
Type
Inch
Max Speed
250 RPM
Outside Dia
4 1/2 in

Technical Documents

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

Product Description

The MASTERDRIVE L190B is a general purpose straight jaw coupling hub with a 4 1/2 in outside diameter, rated for 7.426 hp and a maximum speed of 250 RPM. This inch-sized coupling hub is designed for use with the L190 coupling size spider.

Frequently Asked Questions

What is the MASTERDRIVE L190B jaw coupling hub used for?

The MASTERDRIVE L190B is a general purpose straight jaw coupling hub used to connect rotating shafts in industrial power transmission systems. It transmits 7.426 hp at speeds up to 250 RPM, making it suitable for pumps, conveyors, and other machinery requiring a flexible, misalignment-compensating connection.

What are the specifications of the MASTERDRIVE L190B coupling hub?

The MASTERDRIVE L190B is an inch-sized straight jaw coupling hub with a 4 1/2 in outside diameter, rated for 7.426 hp and a maximum speed of 250 RPM. It is designed for use with the L190 coupling size spider. The manufacturer part number is L190B.

Where to buy the MASTERDRIVE L190B coupling hub worldwide?

3G Electric supplies the MASTERDRIVE L190B coupling hub to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your location. Contact us for pricing and lead time on this inch-sized straight jaw coupling hub.

How to select the correct MASTERDRIVE L190B coupling spider?

To select the correct spider for the MASTERDRIVE L190B coupling hub, ensure the spider matches the L190 coupling size and the hub's 4 1/2 in outside diameter. Verify the spider's torque rating exceeds your application's 7.426 hp requirement at 250 RPM. Consult the manufacturer's catalog for compatible spider materials.

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 Jaw Coupling Spider: L190 Coupling Size, 4 1/2 in Outside Dia, Inch, 5,000 RPM Max Speed (MPN L190H)
MASTERDRIVE
MASTERDRIVE Jaw Coupling Spider: L190 Coupling Size, 4 1/2 in Outside Dia, Inch, 5,000 RPM Max Speed (MPN L190H)
MASTERDRIVE Jaw Coupling Spider: L190 Coupling Size, 4 1/2 in Outside Dia, Inch, 5,000 RPM Max Speed (MPN L190N)
MASTERDRIVE
MASTERDRIVE Jaw Coupling Spider: L190 Coupling Size, 4 1/2 in Outside Dia, Inch, 5,000 RPM Max Speed (MPN L190N)
MASTERDRIVE Jaw Coupling Spider: L190 Coupling Size, 4 1/2 in Outside Dia, Inch, 5,000 RPM Max Speed (MPN L190U)
MASTERDRIVE
MASTERDRIVE Jaw Coupling Spider: L190 Coupling Size, 4 1/2 in Outside Dia, Inch, 5,000 RPM Max Speed (MPN L190U)
MASTERDRIVE Jaw Coupling Spider: L225 Coupling Size, 5 in Outside Dia, Inch, 250 RPM Max Speed (MPN L225B)
MASTERDRIVE
MASTERDRIVE Jaw Coupling Spider: L225 Coupling Size, 5 in Outside Dia, Inch, 250 RPM Max Speed (MPN L225B)
MASTERDRIVE Jaw Coupling Spider: L150 Coupling Size, 3 3/4 in Outside Dia, Inch, 5,000 RPM Max Speed (MPN L150U)
MASTERDRIVE
MASTERDRIVE Jaw Coupling Spider: L150 Coupling Size, 3 3/4 in Outside Dia, Inch, 5,000 RPM Max Speed (MPN L150U)
MASTERDRIVE Jaw Coupling Spider: L150 Coupling Size, 3 3/4 in Outside Dia, Inch, 5,000 RPM Max Speed (MPN L150N)
MASTERDRIVE
MASTERDRIVE Jaw Coupling Spider: L150 Coupling Size, 3 3/4 in Outside Dia, Inch, 5,000 RPM Max Speed (MPN L150N)

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