Thomson SPB12 Super Ball Bushing Linear Bearing Pillow Block

Description:

The Thomson SPB12 Super Ball Bushing Linear Bearing Pillow Block is used in precision linear motion systems requiring smooth, low-friction travel on a 0.750-inch precision shaft. Commonly installed in CNC machines, factory automation equipment, packaging machinery, robotics, material handling systems, and custom linear guide assemblies, this self-aligning closed pillow block combines a Super Ball Bushing bearing with an aluminum housing to provide accurate shaft alignment, high load capacity, and long service life. Maintenance teams, OEM machine builders, and system integrators use this bearing assembly for equipment repair, linear bearing replacement, machine retrofits, and precision motion control applications.

Applications:

The Thomson SPB12 is commonly used in CNC machining centers, automated assembly equipment, packaging machinery, semiconductor manufacturing, medical equipment, woodworking machinery, and material handling systems where a self-aligning linear pillow block bearing is required for 0.750-inch precision shafting. Its closed housing design helps protect the bearing from contaminants while maintaining smooth and accurate linear motion.

Technical Specifications:

• Manufacturer Part Number (MPN): SPB12
• Brand: Thomson
• Product Type: Super Ball Bushing Linear Bearing Pillow Block
• Bearing Type: Closed Linear Ball Bushing
• Housing Style: Single Pillow Block
• Housing Material: Aluminum Alloy
• Nominal Shaft Diameter: 0.750 in (19.05 mm)
• Self-Aligning: Yes
• Adjustable: No
• Configuration: Closed Type
• Overall Length: 2.060 in (52.32 mm)
• Overall Height: 1.750 in (44.45 mm)
• Flange Width: 2.750 in (69.85 mm)
• Mounting Hole Centers: 1.250 in (31.75 mm)
• Mounting Hole Diameter: 0.190 in (#8)
• Dynamic Load Capacity: 600 lbf (2,669 N)
• Maximum Operating Temperature: 185°F (85°C)
• Compatible Shaft Class: Thomson Class L Precision Shafting
• Weight: 0.60 lb (0.272 kg)
• Integral Double-Acting Seals
• Application: Precision Linear Motion Systems

Common Replacements:

• Thomson SPB12ADJ
• Thomson SPB12-DP
• Thomson SPB12-NB