Thomson Industries 5/8 L Ctl 20 Round Linear Shaft

Product Description

The THOMSON INDUSTRIES 5/8 L CTL 20 is a round linear shafting component machined from 1566 steel and hardened to 60 to 65 Rockwell C. The shaft measures 0.625 inches in nominal diameter with a close tolerance range of 0.6240 to 0.6245 inches and a total length of 20 inches. It is designed for use in linear motion assemblies where a hardened, precision-ground shaft supports sliding bearings or linear bushings. Mechanical engineers, machine builders, and maintenance technicians install this type of shaft in actuators, automation equipment, and industrial motion systems.

This shaft is suited for linear motion applications in both industrial and commercial settings. The 20-inch length makes it appropriate for mid-travel linear slides, conveyor guide systems, and custom actuator builds. The tight diameter tolerance supports accurate alignment with standard linear bearings and bushings sized for 5/8-inch shafting. It is a standard-catalog component intended for direct installation or cut-to-length use in new builds and replacement applications.

Key Features

• 1566 steel construction provides high strength and wear resistance in linear motion service
• Hardness of 60 to 65 Rockwell C for extended service life under sliding contact loads
• Diameter tolerance of 0.6240 to 0.6245 inches ensures precise fit with mating linear bearings
• 20-inch overall length supports a wide range of linear travel requirements
• Standard 5/8-inch nominal diameter compatible with widely available linear motion components

Compatibility

Designed as an OEM-style replacement or new-build component for linear motion assemblies using standard 5/8-inch round shaft bearings and bushings.

Installation Notes

Installation is typically performed by mechanical technicians or machine builders as part of a linear motion assembly. Secure all bearing blocks and end supports before loading the shaft, and verify alignment to prevent side-loading on mating bearings. Clean the shaft surface before installation to remove any contamination that could affect bearing fit or introduce abrasion. Consult applicable machinery safety standards and de-energize any connected actuators before replacing a shaft in an existing assembly.