Thomson Super 12-DD Ball Bushing Bearing .75 Inner Diameter 1-1/4 O-D

Description:

The Thomson Super 12-DD Ball Bushing Bearing is used in precision linear motion systems to provide smooth, self-aligning linear support for 0.750-inch precision shafting. Commonly installed in CNC machines, automated assembly equipment, packaging machinery, material handling systems, and industrial automation applications requiring low-friction, high-accuracy linear guidance. Maintenance teams and system integrators use this bearing for machine repairs, automation retrofits, equipment upgrades, and replacement of worn linear bearings to restore precise and reliable linear motion.

Applications:

The Thomson Super 12-DD Ball Bushing Bearing is designed for closed-shaft linear motion applications where high load capacity, self-alignment, and long service life are required. It is widely used in CNC machining centers, robotic automation, inspection equipment, semiconductor manufacturing systems, packaging machinery, and custom OEM equipment utilizing 0.750-inch Thomson Class L shafting. Its integral double seals help retain lubrication while protecting against contaminants in demanding industrial environments.

Technical Specifications:

• Manufacturer: Thomson Industries
• Manufacturer Part Number (MPN): SUPER12-DD
• Product Type: Super Ball Bushing Bearing
• Bearing Type: Closed Linear Ball Bushing
• Nominal Shaft Diameter (I.D.): 0.750 in (19.05 mm)
• Outer Diameter (O.D.): 1.250 in (31.75 mm)
• Overall Length: 1.625 in (41.28 mm)
• Self-Alignment: Yes
• Adjustable: Yes (when installed in an adjustable housing)
• Configuration: Closed Type
• Number of Ball Circuits: 6
• Shaft Compatibility: Thomson Class L Precision Shafting
• Seals: Integral Double Seals (DD)
• Maximum Operating Temperature: 185°F (85°C)
• Dynamic Load Capacity: 600 lbf (2,668.9 N)
• Weight: 0.15 lb (0.068 kg)
• Features: Self-aligning design, low coefficient of friction, engineered polymer retainers, lightweight construction, adjustable fit, wear-resistant outer sleeve, integral seals for contamination protection, suitable for high-speed precision linear motion applications.

Common Replacements:

• Thomson SUPER12
• Thomson SUPER12-DDCR
• Thomson SUPER12-DDNB