Thomson Industries Qsm 12 L 60 Round Linear Shaft

Product Description

The THOMSON INDUSTRIES QSM 12 L 60 is a standard round linear shaft designed for precision linear motion applications. Machined from hardened steel with a Rockwell hardness of 60 to 65C, this shaft provides the rigidity and surface quality required in linear bearing systems. The shaft diameter is 12mm (nominally 0.472 inches) with a tight tolerance range of 0.4720 inches to 0.4724 inches, ensuring consistent fit with compatible linear bearings and bushings. At 60 inches in overall length, it suits a wide range of industrial and automation assemblies. Installation is performed by mechanical and automation technicians in both OEM equipment builds and aftermarket repair applications.

This linear shaft is suited for use in linear motion systems found in industrial machinery, automation equipment, CNC assemblies, and material handling systems. The standard shaft type makes it a direct-fit replacement or new-build component wherever a 12mm diameter hardened steel shaft of 60 inches length is specified. Its hardness and diameter tolerance make it compatible with standard 12mm linear bearings, pillow block assemblies, and open linear guides commonly used in light-to-medium-duty motion systems.

Key Features

• Hardened steel construction with 60 to 65C Rockwell hardness for wear resistance
• Tight diameter tolerance of 0.4720 inches to 0.4724 inches for precision bearing fit
• 12mm (0.472 inch) nominal shaft diameter in standard configuration
• 60 inches overall length accommodates a wide range of travel distances
• Standard shaft type for broad compatibility with linear bearing systems

Compatibility

Designed as an OEM-style replacement or new-build shaft for 12mm linear motion systems using standard-tolerance hardened steel round shafting.

Installation Notes

Installation is typically performed by mechanical technicians or automation engineers. Ensure mating linear bearings and support rail end blocks are rated for 12mm shafting before assembly. Secure shaft ends in appropriate end support blocks and verify alignment before loading the system. Follow equipment manufacturer torque specifications for all fasteners and consult applicable machinery safety standards during integration.