TB Woods 9N Sleeve Insert

The TB Woods 9N Sleeve Insert is a high-performance elastomeric element engineered for the Sure-Flex Plus coupling system. This size 9 neoprene sleeve features a two-piece split design with a reinforcing retaining ring, allowing for efficient installation without disconnecting the driving or driven equipment. Designed for demanding power transmission, the neoprene material offers superior oil resistance and chemical resilience compared to standard EPDM, making it ideal for HVACR applications involving pumps, compressors, and blowers where petroleum-based lubricants may be present.

Operating with a 4-way flexing action, the TB Woods 9N provides exceptional shock absorption and vibration dampening while accommodating up to 1 degree of angular misalignment and 0.025 inches of parallel misalignment. With a torque capacity of 2,340 in-lb and a maximum speed rating of 3,750 RPM, this sleeve insert ensures reliable synchronous power transfer. The torsional flexibility allows for 7 to 21 degrees of wind-up, protecting sensitive drivetrain components from peak start-up loads and torque spikes in industrial mechanical systems.

• Enhanced Durability: Neoprene construction provides excellent resistance to oils, chemicals, and environmental degradation across a temperature range of 0°F to 200°F.
• Superior Torque Handling: Optimized for Sure-Flex Plus flanges, delivering 67 HP at 1,800 RPM and up to 134 HP at 3,600 RPM.
• Maintenance-Free Operation: Eliminates the need for lubrication, reducing operational downtime and preventing contamination in clean-room or food-grade environments.
• Easy Retrofitting: The two-piece split sleeve design with a retaining ring facilitates rapid replacement in tight spaces without disturbing shaft alignment.
• Precision Balancing: Engineered for high-speed stability and reduced torsional vibration, extending the service life of connected bearings and seals.

What is the difference between the 9N and the 9E sleeve?
The 9N sleeve is manufactured from neoprene, which is specifically chosen for its oil resistance and chemical compatibility. In contrast, the 9E is EPDM rubber, which offers a broader temperature range but will degrade if exposed to petroleum products.

Can I use a 9N sleeve with existing TB Woods flanges?
Yes, the TB Woods 9N is 100% compatible with existing Sure-Flex and Sure-Flex Plus size 9 flanges. It is a direct drop-in replacement that requires no modifications to your current coupling assembly.

How do I install the retaining ring on the split sleeve?
The retaining ring should be placed over one flange before the two-piece neoprene split sleeve is seated. Once the sleeve teeth are fully engaged with both flanges, slide the ring into the center groove to secure the assembly during high-speed rotation.

This item is not eligible for free shipping.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.