Thomson Industries SPB6 Pillow Block Linear Bearing

Product Description

The THOMSON INDUSTRIES SPB6 is a closed single pillow block linear bearing designed for smooth, low-friction linear motion in light-duty industrial and automation applications. With a 0.375-inch bore diameter and a single dynamic load capacity of 100 pounds (200 pounds in twin configuration), this bearing provides reliable support for round shafting. The self-aligning design compensates for minor shaft misalignment, reducing installation complexity. The engineered-polymer retainer keeps the ball bushing assembly contained within the closed block housing, protecting rolling elements from contaminants in typical shop and machine environments. Licensed HVAC, plumbing, and automation technicians regularly encounter this bearing type in actuator assemblies, slide mechanisms, and linear motion systems.

The SPB6 is suited for residential and light commercial automation equipment, conveyor sub-assemblies, and linear slide mechanisms where a compact pillow block form factor is required. The closed housing style makes it appropriate for environments where dust or debris could compromise open-style bearings. The self-aligning feature accommodates slight angular misalignment between the shaft and the bearing block, which is common in field-assembled linear motion setups.

Key Features

• 0.375-inch round bore accommodates standard fractional shafting
• Single dynamic load capacity of 100 pounds; 200 pounds in twin configuration
• Closed housing style protects ball bushing elements from debris and contamination
• Self-aligning design compensates for minor shaft-to-block angular misalignment
• Engineered-polymer retainer for lightweight, corrosion-resistant construction
• Compact overall dimensions: 2.75 inches long, 1.75 inches wide, 0.94 inches tall

Compatibility

Designed as an OEM-style replacement or direct installation component for linear motion systems requiring a closed single pillow block bearing with a 0.375-inch bore and standard pillow block mounting footprint.

Installation Notes

Installation should be performed by a qualified technician familiar with linear motion components. De-energize and lock out any powered equipment before removing or installing bearings. Ensure the mating shaft is clean, within tolerance, and free of burrs before pressing or sliding the bearing into position. Secure mounting fasteners evenly to avoid distorting the block housing and refer to applicable machinery safety standards for torque guidance.