UNMARKED PL3-15-16AS Keyless Locking Device PL31516AS

Description:

The UNMARKED PL3-15-16AS Keyless Locking Device is used in industrial power transmission systems to create a high-torque shaft-to-hub connection without the use of keys or splines. Commonly installed in conveyors, gearboxes, packaging machines, pumps, and automated manufacturing equipment. Maintenance teams and system integrators use this part for repair, retrofit, or replacement of shaft locking assemblies to simplify installation and improve torque transmission.

Applications:

UNMARKED PL3-15-16AS keyless locking devices are used in industrial machinery requiring precise shaft-to-hub connections with zero backlash and high torque capacity. They are commonly found in conveyors, servo systems, packaging equipment, pumps, fans, and material handling machinery where pulleys, sprockets, gears, or couplings must be mounted securely without keyways. The PL3-15/16AS corresponds to the Tsubaki POWER-LOCK AS Series, a widely used friction-locking device designed for easy installation, precise positioning, and reliable torque transmission in demanding industrial environments.

Technical Specifications:

• Manufacturer: UNMARKED
• Part Number: PL3-15-16AS
• Alternate Format: PL3-15/16 AS
• Product Type: Keyless Locking Device / Keyless Bushing
• Series: POWER-LOCK AS Series
• Function: Provides a friction-based shaft-to-hub connection without keys or splines
• Bore Diameter: 3-15/16 in (3.938 in)
• Hub Counter Bore Diameter: 5.708 in
• Material: Carbon Steel
• Finish: Uncoated
• Operating Principle: Mechanical interference fit using tapered locking rings
• Mounting Type: Shaft-to-hub friction locking assembly
• Shaft Tolerance: h8 recommended
• Hub Tolerance: H8 recommended
• Features: Zero backlash, easy installation and removal, precise angular positioning
• Applications: Pulleys, sprockets, gears, couplings, rollers, timing cams, and conveyor components
• Industrial Uses: Conveyors, packaging machinery, servo systems, material handling equipment, and industrial automation
• Designed for high torque and thrust transmission applications
• Suitable for repair, retrofit, and OEM replacement applications

Common Replacements:

• Tsubaki PL3-15/16 AS POWER-LOCK Keyless Locking Device
• Ringfeder RFN 7012 Keyless Locking Device
• Climax Keyless Locking Assembly Series