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

3G Electric
TB WOODS TB WOOD'S 8H One-Piece Sleeve Coupling Insert - One-Piece Sleeve Coupling Inserts
TB WOODSOne-Piece Sleeve Coupling Inserts

TB WOODS TB WOOD'S 8H One-Piece Sleeve Coupling Insert

The TB WOOD'S Sure-Flex Plus: 8 Coupling Size is a one-piece solid coupling insert from TB WOOD'S, designed for inch-system applications. It delivers 7.2 hp with a rated torque of 4,530 in-lb and a maximum speed of…

SKU 3G-OTH-142694

Brand
TB WOODS
Item
TB WOOD'S 8H One-Piece Sleeve Coupling Insert
Part Number
8H
Category
One-Piece Sleeve Coupling Inserts
Available to Order
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

Compliance & shipping

Hazardous material
Not classified as hazardous
California Prop 65 warning
No warning recorded
Licence required
No licence required
Safety Data Sheet
Not available
Special shipping
Ships under standard freight

Technical Specifications

TB WOODS
Manufacturer Part Number
8H
Type
4,530 in-lb Rated Torque, 7.2 hp
Max Speed
4,500 RPM
Mfr. Model
8H
Application
Compressors; Conveyors; Electric Motors; Fans/Blowers; Mixers;
Coupling Size
8
Maximum Speed
4,500
Horsepower @ RPM
126 hp @ 1,750 RPM; 252 hp @ 3,500 RPM; 84 hp @ 1,160
Outside Diameter
5-1/16
Angular Misalignment
0.25
Horsepower @ 100 RPM
7.2
Maximum Operating Temperature
250
Minimum Operating Temperature
-65

Technical Documents

(1)
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

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

Product Description

The TB WOOD'S Sure-Flex Plus: 8 Coupling Size is a one-piece solid coupling insert from TB WOOD'S, designed for inch-system applications. It delivers 7.2 hp with a rated torque of 4,530 in-lb and a maximum speed of 4,500 RPM (MPN 8H).

Frequently Asked Questions

What is TB WOOD'S Sure-Flex Plus coupling insert used for?

The TB WOOD'S Sure-Flex Plus one-piece solid coupling insert is used to connect shafts in power transmission systems, absorbing shock and vibration while compensating for misalignment. It is commonly applied in pumps, compressors, conveyors, and industrial machinery requiring reliable torque transfer up to 4,530 in-lb.

What are the specifications of the TB WOOD'S Sure-Flex Plus 8H coupling?

The TB WOOD'S Sure-Flex Plus 8H is a one-piece solid coupling insert with a size of 8, rated for 7.2 hp, 4,530 in-lb torque, and a maximum speed of 4,500 RPM. It is designed for inch-system applications and manufactured by TB WOOD'S under MPN 8H.

Where to buy TB WOOD'S Sure-Flex Plus coupling worldwide?

3G Electric supplies the TB WOOD'S Sure-Flex Plus 8H coupling insert worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time; we source and deliver this TB WOOD'S component to any country.

How to select the correct TB WOOD'S Sure-Flex Plus coupling insert?

To select the correct TB WOOD'S Sure-Flex Plus insert, match the coupling size (e.g., 8) to your shaft diameters and application torque. Verify the rated torque of 4,530 in-lb and maximum speed of 4,500 RPM meet your system requirements. Always confirm the inch-system fit and consult TB WOOD'S guidelines for misalignment limits.

Used in

Common applications for TB WOODS
Pump drives — TB WOOD'S sleeve coupling flanges (e.g., 4J78) for connecting motor to pump shafts in water treatment plants.
Conveyor systems — TB WOOD'S jaw coupling hubs (e.g., L09925MM) for torque transmission in material handling equipment.
Compressor applications — TB WOOD'S tire coupling hubs (e.g., WE2H78) to accommodate misalignment in air compressor drives.
Industrial fans — TB WOOD'S spacer hubs and flanges (e.g., 6SCHMPB, 6SC44) for extended shaft connections in ventilation systems.
Machine tools — TB WOOD'S two-piece sleeve coupling inserts (e.g., model 5) for vibration dampening in spindle drives.
Mixers and agitators — TB WOOD'S finished bore close-coupled flanges for direct coupling in chemical processing equipment.
Not sure this is the right part? Photo-identify it

TB WOODS Products

3G Electric supplies TB WOODS 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

More from TB WOODS

View all TB WOODS parts

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first