Thomson SSUPBA12 Ball Bushing Bearing Pillow Block Self Aligning 3/4

Description:

The Thomson SSUPBA12 Super Smart Ball Bushing Adjustable Pillow Block is used in precision linear motion systems to provide smooth, self-aligning motion on 3/4-inch precision shafts. Commonly installed in CNC machines, industrial automation equipment, robotics, packaging machinery, semiconductor equipment, and material handling systems, this closed adjustable pillow block features a Super Smart Ball Bushing®, aluminum housing, and adjustable preload for improved rigidity and positioning accuracy. Maintenance teams and system integrators use this part for repair, retrofit, expansion, or replacement of end-supported inch linear shaft systems.

Applications:

The Thomson SSUPBA12 is designed for end-supported Class L shaft applications requiring adjustable bearing clearance, high load capacity, and automatic compensation for shaft and housing misalignment. It is widely used in CNC machining centers, automated assembly systems, robotics, packaging equipment, semiconductor manufacturing, medical devices, inspection systems, and custom OEM machinery where precise linear guidance and reduced system play are required.

Technical Specifications:

• Manufacturer: Thomson Industries
• Manufacturer Part Number (MPN): SSUPBA12
• Product Type: Super Smart Ball Bushing Adjustable Pillow Block Linear Bearing
• Series: Super Smart Ball Bushing® (SSUPBA)
• Bearing Style: Closed
• Bearing Configuration: Single Adjustable Pillow Block
• Housing Material: Aluminum Alloy
• Bearing Type: Super Smart Ball Bushing®
• Adjustable: Yes
• Self-Aligning: Yes
• Nominal Bore (ID): 0.750 in (19.05 mm)
• Compatible Shaft Class: L Inch Shafting
• Overall Height (A): 2.750 in (69.85 mm)
• Overall Length (B): 2.060 in (52.32 mm)
• Overall Width (F): 1.560 in (39.62 mm)
• Mounting Hole Spacing (E1): 2.375 in (60.33 mm)
• Mounting Hole Center Distance (E): 1.250 in (31.75 mm)
• Flange Thickness (F1): 0.310 in (7.87 mm)
• Housing Height (G1): 0.780 in (19.81 mm)
• Mounting Hole Diameter (N): 0.190 in (4.83 mm)
• Dynamic Load Capacity: 1,130 lbf (5,027 N)
• Maximum Operating Temperature: 85°C (185°F)
• Approximate Weight: 0.62 lb (0.28 kg)
• Lubrication Port: 1/4-28 Thread
• Roll Pack: No
• Food Grade Rated: No
• Features: Adjustable preload design, patented Super Smart Ball Bushing® technology, universal self-alignment, rigid aluminum pillow block housing, precision recirculating ball system, low-friction operation, high load capacity, and extended service life. 

Common Replacements:

• Thomson SSUPB12
• Thomson SSUPBA12-NBALL
• Thomson SSUPBA12-DP