Tsubaki PL050X080AD-N Power Lock Keyless Locking Assembly

Description:

The Tsubaki PL050X080AD-N POWER-LOCK Keyless Locking Assembly is used in industrial power transmission systems to create a high-strength, backlash-free connection between a 50 mm shaft and a mounted hub without the need for keys or keyways. Commonly installed on sprockets, gears, pulleys, couplings, timing pulleys, and rollers in conveyor systems, packaging machinery, material handling equipment, and industrial automation. Maintenance teams and system integrators use this locking assembly for repair, retrofit, expansion, or replacement to ensure secure shaft mounting and reliable torque transmission. 

Applications:

The Tsubaki PL050X080AD-N is part of the POWER-LOCK® AD-N Series, engineered for high-torque applications requiring superior shaft-to-hub locking performance. Its integrated double-taper, self-centering design provides up to three times the torque capacity of comparable AS Series units while eliminating backlash and shaft weakening associated with keyed connections. It is ideal for multi-strand conveyor sprockets, large gears, pulleys, indexing tables, mixers, and heavy-duty industrial machinery.

Technical Specifications:

• Manufacturer: Tsubaki Emerson Co.
• Model / Part Number: PL050X080AD-N
• Product Type: Keyless Locking Assembly
• Series: POWER-LOCK® AD-N Series
• Shaft Diameter: 50 mm
• Hub Bore Diameter: 80 mm
• Locking Type: Double-Taper Mechanical Friction Lock (Keyless)
• Design: Self-Centering, One-Piece Construction
• Overall Length (L): 56 mm
• Effective Length (Lt): 64 mm
• Installed Outside Diameter (e): 72 mm
• Transmissible Torque: 4,210 N·m (3,105 lb-ft)
• Transmissible Thrust: 170 kN (38,200 lbf)
• Shaft Tolerance: h8
• Hub Bore Tolerance: H8
• Locking Bolts: 9 × M8 × 50 mm
• Bolt Tightening Torque: 40.2 N·m
• Weight: Approximately 1.38 kg (3.04 lb)
• Function: Provides a backlash-free shaft-to-hub connection without keys or splines
• Application: Sprockets, gears, pulleys, timing pulleys, couplings, rollers, conveyors, packaging machinery, and industrial power transmission systems.

Common Replacements:

• Tsubaki PL048X080AD-N POWER-LOCK Assembly
• Tsubaki PL055X085AD-N POWER-LOCK Assembly
• Tsubaki PL050X080AE POWER-LOCK Assembly