Thomson Industries SB12 Shaft Support 0.75 in Plain Shafting

Product Description

The THOMSON INDUSTRIES SB12 is a malleable iron alloy shaft support designed for plain shafting applications. It provides rigid, precise positional support for 0.75-inch diameter shafts in linear motion and mechanical drive assemblies. The unit measures 2.75 inches in overall length and 2.13 inches in overall height, with a center height of 1.25 inches. Diameter tolerance is held to plus or minus 0.001 inch, making it suitable for applications that require consistent shaft alignment. This type of component is typically installed by mechanical technicians, millwrights, and industrial maintenance professionals working on motion control, conveyor, or linear actuator systems.

The SB12 is suited for use in industrial and light commercial mechanical assemblies where plain shafting requires fixed support along a linear axis. It mounts through pre-drilled holes spaced 2 inches center-to-center, using 0.22-inch diameter mounting holes. The malleable iron alloy construction provides durability in environments subject to vibration or moderate mechanical load. This support is a standard catalog component used across a range of linear motion platforms and machine frame assemblies.

Key Features

• Supports 0.75-inch diameter plain shafting with tight diameter tolerance of plus or minus 0.001 inch
• Malleable iron alloy construction for durability under vibration and mechanical load
• Overall length of 2.75 inches and overall height of 2.13 inches for compact installation footprint
• Center height of 1.25 inches for consistent shaft centerline positioning
• Mounting holes spaced 2 inches center-to-center with 0.22-inch hole diameter for standard fastener compatibility
• Single-unit packaging with minimum order quantity of 1

Compatibility

Designed as an OEM-style replacement or direct-fit shaft support for plain shafting assemblies requiring a 0.75-inch bore diameter and standard two-hole mounting configuration.

Installation Notes

Installation is typically performed by millwrights or mechanical technicians. De-energize and lock out all power to the machine before disassembling any shaft support components. Ensure the mounting surface is flat and clean before securing the support to avoid misalignment. Verify shaft diameter and tolerances against the support bore specification before final assembly.