We ship worldwide — Singapore, Australia, Malaysia, Indonesia, Philippines, India, Middle East & more

3G Electric
⌕
RFQ CartGet a QuoteSign inSign up
MASTERDRIVE Coupling Sleeve: 12 Coupling Size, 2,800 RPM Max Speed, 31,500 in-lb Rated Torque - One-Piece Sleeve Coupling Inserts
MASTERDRIVEOne-Piece Sleeve Coupling Inserts

MASTERDRIVE Coupling Sleeve: 12 Coupling Size, 2,800 RPM Max Speed, 31,500 in-lb Rated Torque

The MASTERDRIVE Coupling Sleeve: 12 Coupling Size is a one-piece solid sleeve coupling insert rated for 50 hp, 31,500 in-lb torque, and 2,800 RPM max speed. This inch-size component (MPN 12H) is designed for…

SKU 3G-OTH-142700

Brand
MASTERDRIVE
Item
Coupling Sleeve: 12 Coupling Size, 2,800 RPM Max Speed, 31,500 in-lb Rated Torque
Category
One-Piece Sleeve Coupling Inserts
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
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

Technical Specifications

MASTERDRIVE
Manufacturer Part Number
12H
Type
31,500 in-lb Rated Torque, 50 hp
Max Speed
2,800 RPM
View Full Spec Sheet

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 Sleeve: 12 Coupling Size is a one-piece solid sleeve coupling insert rated for 50 hp, 31,500 in-lb torque, and 2,800 RPM max speed. This inch-size component (MPN 12H) is designed for industrial power transmission applications.

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 one-piece sleeve coupling inserts. 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 →

Similar products

Matched by specification & description
MASTERDRIVE Coupling Sleeve: 10 Coupling Size, 3,600 RPM Max Speed, 11,350 in-lb Rated Torque, 18 hp (MPN 10H). Key specifications — attr672377: 18 hp; attr672411: Inch; attr672387: 1-Piece Solid; attr85403: MASTERDRIVE.
MASTERDRIVE
MASTERDRIVE Coupling Sleeve: 10 Coupling Size, 3,600 RPM Max Speed, 11,350 in-lb Rated Torque, 18 hp (MPN 10H). Key specifications — attr672377: 18 hp; attr672411: Inch; attr672387: 1-Piece Solid; attr85403: MASTERDRIVE.
MASTERDRIVE Coupling Sleeve: 9 Coupling Size, 3,750 RPM Max Speed, 7,200 in-lb Rated Torque, 11.4 hp (MPN 9H). Key specifications — attr672377: 11.4 hp; attr672411: Inch; attr672387: 1-Piece Solid; attr85403: MASTERDRIVE.
MASTERDRIVE
MASTERDRIVE Coupling Sleeve: 9 Coupling Size, 3,750 RPM Max Speed, 7,200 in-lb Rated Torque, 11.4 hp (MPN 9H). Key specifications — attr672377: 11.4 hp; attr672411: Inch; attr672387: 1-Piece Solid; attr85403: MASTERDRIVE.
MASTERDRIVE Coupling Sleeve: 12 Coupling Size, 2,800 RPM Max Speed, 31,500 in-lb Rated Torque, 50 hp (MPN 12HS). Key specifications — attr672377: 50 hp; attr672411: Inch; attr672387: 2-Piece; attr85403: MASTERDRIVE.
MASTERDRIVE
MASTERDRIVE Coupling Sleeve: 12 Coupling Size, 2,800 RPM Max Speed, 31,500 in-lb Rated Torque, 50 hp (MPN 12HS). Key specifications — attr672377: 50 hp; attr672411: Inch; attr672387: 2-Piece; attr85403: MASTERDRIVE.
MASTERDRIVE Coupling Sleeve: 12 Coupling Size, 2,800 RPM Max Speed, 9,360 in-lb Rated Torque, 15 hp (MPN 12N). Key specifications — attr672377: 15 hp; attr672411: Inch; attr672387: 2-Piece; attr85403: MASTERDRIVE.
MASTERDRIVE
MASTERDRIVE Coupling Sleeve: 12 Coupling Size, 2,800 RPM Max Speed, 9,360 in-lb Rated Torque, 15 hp (MPN 12N). Key specifications — attr672377: 15 hp; attr672411: Inch; attr672387: 2-Piece; attr85403: MASTERDRIVE.

More from MASTERDRIVE

View all MASTERDRIVE parts →
MASTERDRIVE Coupling Sleeve: 6 Coupling Size, 6,000 RPM Max Speed, 1,800 in-lb Rated Torque, 2.9 hp (MPN 6H). Key specifications — attr672377: 2.9 hp; attr672411: Inch; attr672387: 1-Piece Solid; attr85403: MASTERDRIVE.
MASTERDRIVE
MASTERDRIVE Coupling Sleeve: 6 Coupling Size, 6,000 RPM Max Speed, 1,800 in-lb Rated Torque, 2.9 hp (MPN 6H). Key specifications — attr672377: 2.9 hp; attr672411: Inch; attr672387: 1-Piece Solid; attr85403: MASTERDRIVE.
MASTERDRIVE Coupling Sleeve: 8 Coupling Size, 4,500 RPM Max Speed, 1,135 in-lb Rated Torque, 1.8 hp (MPN 8JNS). Key specifications — attr672377: 1.8 hp; attr672411: Inch; attr672387: 1-Piece Split; attr85403: MASTERDRIVE.
MASTERDRIVE
MASTERDRIVE Coupling Sleeve: 8 Coupling Size, 4,500 RPM Max Speed, 1,135 in-lb Rated Torque, 1.8 hp (MPN 8JNS). Key specifications — attr672377: 1.8 hp; attr672411: Inch; attr672387: 1-Piece Split; attr85403: MASTERDRIVE.
MASTERDRIVE Coupling Sleeve: 4 Coupling Size, 7,600 RPM Max Speed, 120 in-lb Rated Torque, 0.2 hp (MPN 4JNS). Key specifications — attr672377: 0.2 hp; attr672411: Inch; attr672387: 1-Piece Split; attr85403: MASTERDRIVE.
MASTERDRIVE
MASTERDRIVE Coupling Sleeve: 4 Coupling Size, 7,600 RPM Max Speed, 120 in-lb Rated Torque, 0.2 hp (MPN 4JNS). Key specifications — attr672377: 0.2 hp; attr672411: Inch; attr672387: 1-Piece Split; attr85403: MASTERDRIVE.
MASTERDRIVE Coupling Sleeve: 8 Coupling Size, 4,500 RPM Max Speed, 4,530 in-lb Rated Torque, 7.2 hp (MPN 8H). Key specifications — attr672377: 7.2 hp; attr672411: Inch; attr672387: 1-Piece Solid; attr85403: MASTERDRIVE.
MASTERDRIVE
MASTERDRIVE Coupling Sleeve: 8 Coupling Size, 4,500 RPM Max Speed, 4,530 in-lb Rated Torque, 7.2 hp (MPN 8H). Key specifications — attr672377: 7.2 hp; attr672411: Inch; attr672387: 1-Piece Solid; attr85403: MASTERDRIVE.
MASTERDRIVE Coupling Sleeve: 7 Coupling Size, 5,250 RPM Max Speed, 2,875 in-lb Rated Torque, 4.6 hp (MPN 7H). Key specifications — attr672377: 4.6 hp; attr672411: Inch; attr672387: 1-Piece Solid; attr85403: MASTERDRIVE.
MASTERDRIVE
MASTERDRIVE Coupling Sleeve: 7 Coupling Size, 5,250 RPM Max Speed, 2,875 in-lb Rated Torque, 4.6 hp (MPN 7H). Key specifications — attr672377: 4.6 hp; attr672411: Inch; attr672387: 1-Piece Solid; attr85403: MASTERDRIVE.
MASTERDRIVE Coupling Sleeve: 11 Coupling Size, 3,600 RPM Max Speed, 18,000 in-lb Rated Torque, 29 hp (MPN 11H). Key specifications — attr672377: 29 hp; attr672411: Inch; attr672387: 1-Piece Solid; attr85403: MASTERDRIVE.
MASTERDRIVE
MASTERDRIVE Coupling Sleeve: 11 Coupling Size, 3,600 RPM Max Speed, 18,000 in-lb Rated Torque, 29 hp (MPN 11H). Key specifications — attr672377: 29 hp; attr672411: Inch; attr672387: 1-Piece Solid; attr85403: MASTERDRIVE.
MASTERDRIVE Coupling Sleeve: 4 Coupling Size, 7,600 RPM Max Speed, 120 in-lb Rated Torque, 0.2 hp (MPN 4JN). Key specifications — attr672377: 0.2 hp; attr672411: Inch; attr672387: 1-Piece Solid; attr85403: MASTERDRIVE.
MASTERDRIVE
MASTERDRIVE Coupling Sleeve: 4 Coupling Size, 7,600 RPM Max Speed, 120 in-lb Rated Torque, 0.2 hp (MPN 4JN). Key specifications — attr672377: 0.2 hp; attr672411: Inch; attr672387: 1-Piece Solid; attr85403: MASTERDRIVE.
MASTERDRIVE Coupling Sleeve: 8 Coupling Size, 4,500 RPM Max Speed, 1,135 in-lb Rated Torque, 1.8 hp (MPN 8JN). Key specifications — attr672377: 1.8 hp; attr672411: Inch; attr672387: 1-Piece Solid; attr85403: MASTERDRIVE.
MASTERDRIVE
MASTERDRIVE Coupling Sleeve: 8 Coupling Size, 4,500 RPM Max Speed, 1,135 in-lb Rated Torque, 1.8 hp (MPN 8JN). Key specifications — attr672377: 1.8 hp; attr672411: Inch; attr672387: 1-Piece Solid; attr85403: MASTERDRIVE.