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The TB WOOD'S 11SMPB is a Type S flexible flange coupling manufactured from cast iron. It is designed to connect rotating shafts in industrial power transmission applications, accommodating minor misalignment while transmitting torque between coupled components. With an overall length of 3.4375 inches and an outside diameter of 8.625 inches, this size 11 flange accepts a 1.25-inch bore. Mechanical contractors, millwrights, and industrial maintenance technicians install this style of coupling in pump, compressor, conveyor, and general drive train setups where a bolted flange interface is required.
The 11SMPB is suited for industrial and commercial mechanical drive applications where a cast iron flange coupling is specified. The Type S designation identifies its flange style within the TB WOOD'S coupling line. It is typically installed on pump and motor shafts in fixed-speed drive systems across manufacturing, HVAC mechanical rooms, and process equipment installations.
Designed as an OEM-style replacement or direct-fit flange coupling for industrial and commercial power transmission drive systems requiring a size 11 cast iron flexible flange component.
Installation is typically performed by a millwright or licensed mechanical technician. Disconnect and lock out all power to the drive system before handling any coupling components. Ensure shaft and bore surfaces are clean and within tolerance before pressing or fitting the flange. Follow applicable ANSI and OSHA lockout/tagout procedures during installation and inspection.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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