Tb Woods TB-11H Sure-flex Plus Sleeve Coupling Insert Size 11

Product Description

The TB WOODS TB-11H is a one-piece solid Hytrel sleeve coupling insert designed for use in Sure-Flex Plus flexible sleeve coupling systems. It connects two compatible coupling flanges to transmit torque while accommodating angular, axial, and parallel misalignment in rotating equipment. Rated at 18,000 in-lb of torque and a maximum speed of 3,600 RPM, this size 11 insert is built for demanding industrial drive applications. The Hytrel elastomer construction provides four-way flexing action that absorbs shock loads, dampens vibration, and tolerates end float without metal-to-metal contact. Installation is straightforward for maintenance technicians and millwrights working on industrial drive trains.

This insert is suited for a wide range of power transmission applications including compressors, conveyors, electric motors, fans, blowers, mixers, and pumps. The one-piece solid construction is standard for applications where shaft ends are accessible and have adequate separation for sleeve installation. Operating temperature range of -65 degrees F to 250 degrees F makes it viable across refrigeration-adjacent and high-heat industrial environments alike. The TB-11H handles up to 1,000 hp at 3,500 RPM, 500 hp at 1,750 RPM, and 331 hp at 1,160 RPM, covering a broad spectrum of motor and driven-equipment combinations.

Key Features

• Size 11 one-piece solid Hytrel insert rated for 18,000 in-lb torque at up to 3,600 RPM
• Four-way flexing action absorbs shock, misalignment, end float, and vibration
• Accommodates angular misalignment up to 0.25 degrees and parallel misalignment up to 0.022 inches
• Wide operating temperature range: -65 degrees F to 250 degrees F
• Scalable horsepower ratings: 29 hp at 100 RPM up to 1,000 hp at 3,500 RPM
• Made in the USA (subject to change)

Compatibility

Designed for use with TB WOODS Sure-Flex Plus size 11 coupling flanges as part of a complete sleeve coupling assembly. Compatible drive applications include compressors, conveyors, electric motors, fans, blowers, mixers, and pumps.

Installation Notes

Installation is typically performed by a millwright or industrial maintenance technician. De-energize and lock out the drive motor before beginning any coupling work in accordance with OSHA lockout/tagout procedures. Ensure both coupling flanges are correctly mounted and aligned on their respective shaft ends before seating the sleeve insert. The one-piece solid construction requires sufficient axial clearance between shaft ends to slide the insert into position; for close-coupled shafts, consider a split-style insert instead.

Technical Specifications

• Coupling Size: 11
• Insert Material: Hytrel
• Insert Construction: One Piece - Solid
• Rated Torque: 18,000 in-lb
• Maximum Speed: 3,600 RPM
• Horsepower at 100 RPM: 29 hp
• Horsepower at Speed: 1,000 hp at 3,500 RPM; 500 hp at 1,750 RPM; 331 hp at 1,160 RPM
• Torsional Stiffness: 125,000 in-lb/rad
• Insert Width: 4 inches
• Outside Diameter: 8.1875 inches
• Parallel Misalignment: 0.022 inches
• Angular Misalignment: 0.25 degrees
• Minimum Operating Temperature: -65 degrees F
• Maximum Operating Temperature: 250 degrees F
• Misalignment Types: Angular, Axial, Parallel
• Weight: 4.5 pounds
• Shipping Weight: 4.84 pounds
• System of Measurement: Inch
• UNSPSC: 31163003
• Country of Origin: USA (subject to change)

Standard Information

• Brand: TB WOODS
• Manufacturer Part Number: TB-11H