Thomson Industries 1 1/4 L Soft L 12 Linear Shaft

Product Description

The THOMSON INDUSTRIES 1 1/4 L SOFT L 12 is a standard round linear shafting rod manufactured from un-hardened steel. It measures 1.25 inches in diameter and 12 inches in overall length. This type of shaft is a core component in linear motion systems, serving as the precision guide along which linear bearings, carriages, or slide assemblies travel. It is commonly installed in automation equipment, machine tools, material handling systems, and industrial actuators. At 4.18 pounds, it is a solid, single-piece component suited for moderate-load linear motion applications where hardened rail is not required.

This shaft is used in light-to-medium duty linear motion assemblies across industrial and commercial settings. Un-hardened steel construction makes it appropriate for applications where surface hardness is not a critical design requirement, such as slower-speed or lower-load guide systems. Machinists, millwrights, and automation technicians typically source this shaft for custom actuator builds, machine rebuilds, or retrofit linear slide systems. The 1.25-inch diameter suits standard pillow block and flanged linear bearing bores commonly found in off-the-shelf linear motion hardware.

Key Features

• Standard round shaft profile compatible with common linear bearing bore sizes
• 1.25-inch diameter and 12-inch length for precise fitment in linear motion assemblies
• Un-hardened steel construction - suitable for moderate-load, lower-speed guide applications
• Solid single-piece construction with no joints or welds along the shaft length
• Weighs 4.18 pounds - substantial cross-section for structural rigidity in guide assemblies

Compatibility

Designed as an OEM-style replacement or new-build component for standard 1.25-inch bore linear bearings, pillow block assemblies, and linear slide systems requiring a round shaft guide rail.

Installation Notes

Installation is typically performed by millwrights, machine builders, or automation technicians. Secure shaft ends in proper shaft supports or end blocks to prevent deflection under load. Ensure all linear bearings are fully de-loaded and the machine is powered down and locked out before removing or inserting shafting. Do not use the shaft as a structural support member beyond its intended linear motion guide role.