Thomson Industries Qs 1 1/2 L 24 Round Linear Shaft

Product Description

The THOMSON INDUSTRIES QS 1 1/2 L 24 is a standard round linear shaft designed for use in linear motion systems, guide assemblies, and precision machinery applications. Machined from 1566-grade steel and case-hardened to a Rockwell C hardness of 60 to 65C, this shaft delivers the surface durability and dimensional consistency that linear bearing and bushing systems require. The shaft measures 1.5 inches in nominal diameter with a ground tolerance range of 1.4989 inches to 1.4994 inches, and runs 24 inches in overall length. It is the type of component specified by mechanical and maintenance technicians when building or servicing linear actuator stages, rod and rail assemblies, and automated equipment frames.

This shaft is suited for industrial and commercial linear motion applications where a hardened steel shaft is required to support recirculating ball bushings, sleeve bearings, or pillow block assemblies. Typical installations include automation equipment, material handling systems, and precision positioning stages. The 24-inch length makes it appropriate for moderate-span linear travel applications without requiring splicing or extension hardware. The tight diameter tolerance ensures consistent fit with standard 1.5-inch bore linear bearings.

Key Features

• 1566-grade steel construction with 60 to 65C Rockwell hardness for wear resistance in bearing contact zones
• Ground diameter tolerance of 1.4989 inches to 1.4994 inches for precise fit with linear bearings and bushings
• 1.5 inches nominal diameter, 24 inches overall length
• Standard shaft type compatible with common linear motion component configurations
• Single-piece construction with no joints or welds along the shaft length

Compatibility

Designed as an OEM-style replacement or build component for linear motion assemblies using standard 1.5-inch bore linear bearings and pillow block housings.

Installation Notes

Installation is typically performed by mechanical technicians or maintenance professionals working on linear motion equipment. Secure shaft ends in properly rated support blocks or end mounts before loading the assembly. Clean and inspect bearing bores before sliding bearings onto the shaft to avoid scoring the ground surface. Consult the equipment manufacturer's guidelines for proper preload, alignment, and fastener torque specifications.