Description
The TB Woods 4J-5/8 is a Size 4, Type J Sure-Flex Plus coupler flange engineered for reliable power transmission in HVAC and industrial drive applications. Constructed from sintered carbon steel for durability and consistent performance, this flange features a 5/8″ bore and a 3/16″ x 3/32″ keyseat for secure shaft engagement and precise torque transfer.
Key Features
- Size 4 Sure-Flex Plus Type J coupler flange
- Sintered carbon steel construction for strength and wear resistance
- 5/8″ bore diameter for direct shaft mounting
- 3/16″ x 3/32″ keyseat for positive, slip-free torque transmission
- Designed for use with TB Woods Sure-Flex Plus flexible coupling systems
- Accommodates angular, parallel, and axial misalignment
- Reduces vibration and shock loads transmitted between connected shafts
Product Specifications
- SKU: 4J-5/8
- Brand: TB Woods
- Coupling Type: Sure-Flex Plus Type J
- Size: 4
- Material: Sintered Carbon Steel
- Bore: 5/8″
- Keyseat: 3/16″ x 3/32″
Application
The TB Woods Sure-Flex Plus Type J flange is ideal for HVAC blower and fan drive assemblies, pump couplings, compressor drives, and other power transmission applications where misalignment compensation and vibration dampening are critical. The sintered carbon steel construction ensures long service life in demanding mechanical environments.





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