Thomson SSUTWN12 Aluminum Pillow Block Housing Linear Bearing (.75 Bore)

Description:

The Thomson SSUTWN12 Super Smart Ball Bushing Twin Linear Bearing Pillow Block is used in precision linear motion systems to provide smooth, self-aligning motion on 0.750-inch (3/4-inch) Class L round shafts. Commonly installed in CNC machines, industrial automation equipment, robotics, packaging machinery, semiconductor equipment, and material handling systems, this aluminum twin pillow block housing includes two factory-installed Super Smart Ball Bushings® in a closed, self-aligning design for end-supported shaft applications. Maintenance teams and system integrators use this part for repair, retrofit, expansion, or replacement of precision round shaft linear guide systems.

Applications:

The Thomson SSUTWN12 is designed for end-supported Class L shaft applications requiring increased rigidity, higher load capacity, and long service life. Its twin-bearing configuration provides greater stability than a single pillow block, making it suitable for CNC machining centers, automated assembly systems, robotics, packaging equipment, semiconductor manufacturing, inspection systems, and other high-precision OEM linear motion applications.

Technical Specifications:

• Manufacturer: Thomson Industries
• Manufacturer Part Number (MPN): SSUTWN12
• Product Type: Super Smart Ball Bushing Twin Linear Bearing Pillow Block
• Series: Super Smart Ball Bushing® (SSUTWN)
• Bearing Style: Closed
• Bearing Configuration: Twin Pillow Block
• Housing Material: Aluminum Alloy
• Bearing Type: Super Smart Ball Bushing® Linear Bearing
• Adjustable: No
• Self-Aligning: Yes
• Nominal Bore (ID): 0.750 in (19.05 mm)
• Compatible Shaft Class: Class L End-Supported Shafting
• Overall Width (A): 2.750 in (69.85 mm)
• Body Width (A2): 1.880 in (47.75 mm)
• Overall Length (B): 4.500 in (114.30 mm)
• Center Shaft Height (H): 0.937 in (23.80 mm)
• Overall Height (H1): 1.750 in (44.45 mm)
• Mounting Hole Spacing (E1): 2.375 in (60.33 mm)
• Mounting Hole Spacing (E2): 3.500 in (88.90 mm)
• Edge Distance (E): 0.410 in (10.41 mm)
• Body Height (F): 1.560 in (39.62 mm)
• Base Thickness (F1): 0.310 in (7.87 mm)
• Housing Width (G): 0.940 in (23.88 mm)
• Housing Height (G1): 2.250 in (57.15 mm)
• Lubrication Access: 1/4-28 Thread
• Mounting Hole Diameter (N): 0.190 in (4.83 mm)
• Dynamic Load Capacity: 2,260 lbf (10,053 N)
• Maximum Operating Temperature: 85°C (185°F)
• Weight: 1.24 lb (0.562 kg)
• Roll Pack: No
• Food Grade Rated: No
• Corrosion Resistance: Standard (Not Corrosion Resistant)
• Features: Twin Super Smart Ball Bushings®, factory-installed bearings, closed design for end-supported shafts, universal self-alignment, aluminum pillow block housing, integral double-acting seals, smooth low-friction operation, high load capacity, and extended service life. 

Common Replacements:

• Thomson SSUTWN12-XS
• Thomson SSUTWN12-DP
• Thomson SSUTWN12-NBA