Apparatus for Shear Stability of Lubricating Oils Containing Polymers AZA1329

Description

Working Principle

The AZA-1329 KRL Tester applies controlled mechanical shear stress to the test lubricant inside a four-ball friction system equipped with a tapered roller bearing assembly.

Under specified conditions—speed of 1500 rpm, test force of 5000 N, temperature of 60°C, and test duration of approximately 20 hours—the lubricant experiences mechanical degradation similar to that occurring in real gear systems.

After the test, the viscosity is measured before and after shearing. The percentage decrease in viscosity represents the shear stability of the lubricant.

Construction and Design

The AZA-1329 is built on a heavy-duty steel frame and includes a precision-controlled heating and cooling system. The testing chamber is embedded with the bearing and mandrel assembly, supported by advanced sensors and controllers to ensure consistent performance throughout the test duration.

The system consists of:

• Embedded test body and drive spindle
• SKF 32008 tapered roller friction pair
• Tapered roller bearing assembly
• Constant temperature control system
• Data acquisition and display interface

 Key Features & Advantages

• Standards Compliant: Fully meets DIN 51350-6 and equivalent CEC L-45-99 (KRL) requirements.
  • Real-World Simulation: Recreates mechanical shear conditions of lubricants under load.
  • Stable Temperature Control: Imported compressor maintains a constant 60°C ±1°C environment.
  • High Load Capability: Supports continuous operation at 5000 N load.
  • Long-Duration Test Operation: Performs up to 1.74 million revolutions (≈20 hours).
  • Precision Monitoring: Displays real-time temperature, speed, and duration.
  • Durable and Safe: Rugged design with overload and overheat protection.
  • Low Maintenance: Built for continuous operation with minimal servicing.

 Applications

The AZA-1329 KRL Friction Tester is used in:
• Lubricant manufacturing and R&D labs
• Automotive and gearbox testing facilities
• Hydraulic fluid analysis
• Additive and polymer performance evaluation
• Petrochemical quality control laboratories
• Industrial oil testing centers

 Test Conditions

 Benefits

• Predicts permanent viscosity loss of lubricants under mechanical stress
  • Provides reproducible and precise results
  • Ensures compliance with international testing standards
  • Reduces field testing requirements by simulating real mechanical loads
  • Enhances formulation development and product validation

The AZA-1329 Apparatus for Shear Stability of Lubricating Oils Containing Polymers from AZA LAB offers a dependable, high-precision solution for evaluating lubricant shear stability according to DIN 51350-6 standards. With its rugged design, automated temperature control, and reliable performance, this system is an essential tool for laboratories focused on lubricant development, testing, and certification.