Thomson Industries SRAM12T1L48 Round Shaft Assembly

Product Description

The THOMSON INDUSTRIES SRAM12T1L48 is a round shaft linear assembly designed for guided linear motion applications in industrial and automation systems. The assembly pairs a hardened steel shaft with an aluminum rail base, providing a rigid, low-deflection platform for carriage or bearing travel. The shaft diameter is 12mm, the overall assembly length is 48 inches, and the base width measures 43mm. This type of linear shaft assembly is typically specified and installed by mechanical technicians, machine builders, or automation integrators working on conveyor, gantry, or actuator systems.

This assembly is suited for both light and medium-duty linear motion applications where a round shaft and rail combination is preferred over a profile rail system. The aluminum rail provides a lightweight yet stable mounting base, while the steel shaft offers the surface hardness needed for smooth bearing travel. Typical installation environments include industrial machinery, motion control equipment, and manufacturing automation platforms. The 48-inch shaft length accommodates longer travel strokes common in gantry and slide applications.

Key Features

• 12mm shaft diameter for compatibility with standard 12mm linear bearings and bushings
• 48-inch overall assembly length supports longer stroke linear motion applications
• Hardened steel shaft provides wear-resistant bearing surface
• Aluminum rail base reduces overall assembly weight while maintaining structural rigidity
• 43mm base width for stable mounting on machine frames and structures
• 9mm neck width connecting shaft to rail for a compact integrated profile

Compatibility

Designed as an OEM-style replacement or direct-fit component for round shaft linear motion assemblies requiring a 12mm shaft diameter and 43mm base width aluminum rail configuration.

Installation Notes

Installation should be performed by a qualified mechanical technician or machine builder familiar with linear motion systems. Ensure all machine power and pneumatic or hydraulic sources are fully de-energized and locked out before removing or installing shaft assemblies. The rail base should be mounted to a flat, rigid surface to prevent bowing or misalignment along the shaft length. Verify bearing or carriage clearance along the full stroke length before returning the system to service.