Thomson SPB-8-OPN Super Pillow Block Ball Bushing Linear Bearing

Description:

The Thomson SPB-8-OPN Super Pillow Block Ball Bushing Linear Bearing is used in continuously supported linear motion systems requiring smooth, self-aligning travel and low-friction shaft guidance. Commonly installed in CNC machines, industrial automation equipment, packaging machinery, robotics, and material handling systems, this open-style Super Ball Bushing® pillow block is designed for 1/2-inch supported shafting and delivers precise, reliable linear motion with factory-installed recirculating ball bearings. Maintenance teams and system integrators use this bearing for repair, retrofit, expansion, or replacement of supported linear guide systems.

Applications:

The Thomson SPB-8-OPN is commonly used in CNC equipment, automated assembly systems, pick-and-place machines, inspection systems, packaging machinery, laboratory automation, conveyor equipment, and other industrial applications requiring continuous shaft support, precise linear guidance, and smooth, low-friction motion. Its open configuration allows operation on continuously supported shafts while maintaining excellent alignment and bearing performance.

Technical Specifications:

• Manufacturer: Thomson Industries
• Manufacturer Part Number (MPN): SPB-8-OPN
• Product Type: Super Pillow Block Ball Bushing Linear Bearing
• Series: Super Ball Bushing® Pillow Block
• Bearing Style: Open
• Bearing Configuration: Single
• Self-Aligning: Yes
• Adjustable: No
• Nominal Shaft Diameter: 0.500 in (12.7 mm)
• Compatible Shaft Class: Thomson Class L / 60 Case® LinearRace® Supported Shafting
• Housing Material: Aluminum
• Bearing Type: Recirculating Ball Bushing
• Outside Length (A): 2.000 in (50.80 mm)
• Housing Width (B): 1.500 in (38.10 mm)
• Overall Height (H1): 1.130 in (28.70 mm)
• Shaft Center Height (H): 0.687 in (17.45 mm)
• Mounting Hole Size: #6
• Dynamic Load Capacity: 115 lbf (512 N)
• Maximum Operating Temperature: 185°F (85°C)
• Weight: 0.20 lb (0.091 kg)
• Lubrication: Grease fitting provision (Alemite 1877)
• Seals: Integral double-acting seals
• Corrosion Resistant: No
• Features: Open design for continuously supported shafts, lightweight aluminum housing, self-aligning operation, low coefficient of friction, engineered polymer retainers, quiet operation, factory-installed Super Ball Bushing bearing.

Common Replacements:

• Thomson SPB8OPN-NBALL
• Thomson SPB8OPN-DP
• Thomson SPB8OPN-MOD