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APPARATUS FOR SHEAR STABILITY OF LUBRICATING OILS CONTAINING POLYMERS AZA1329A
The AZA1329A Apparatus for Shear Stability of Lubricating Oils Containing Polymers by AZA LAB is a precision-engineered testing system designed for determining the shear stability of polymer-containing lubricating oils under controlled mechanical stress conditions. Developed in accordance with DIN 51350-6, the apparatus evaluates the permanent viscosity loss of lubricants subjected to mechanical shear similar to real gearbox operating conditions.
The AZA1329A utilizes a tapered roller shearing system (KRL – Kugel Rollen Lager) integrated with a Shell Four-Ball Tester and constant temperature control system to accurately assess lubricant degradation and viscosity stability. This instrument is widely used in lubricant testing laboratories, petrochemical industries, transmission oil development centers, research institutions, and quality control facilities.
Description
SYSTEM CONSTRUCTION
The AZA1329A consists of the following major components:
- Embedded body assembly
- Mandrel system
- Tapered roller friction pair
- Tapered roller bearing assembly
- Constant temperature control system
- Refrigeration-based temperature regulation unit
- High-load mechanical testing system
- Precision force application mechanism
The integrated imported compressor-based cooling system ensures highly stable temperature control throughout long-duration testing.
STANDARD COMPLIANCE
The AZA1329A conforms to:
- DIN 51350-6 – Testing of lubricants using Shell Four-Ball Tester for shear stability determination
- CEC L-45-99 – KRL tapered roller bearing shear stability test
Additionally, the system supports Four-Ball Wear and Extreme Pressure Testing Standards including:
- ASTM D2783 – Extreme Pressure Properties of Lubricating Fluids (Four-Ball Method)
- ASTM D2266 – Wear Preventive Characteristics of Lubricating Grease (Four-Ball Method)
- ASTM D4172 – Wear Preventive Characteristics of Lubricating Fluid (Four-Ball Method)
TECHNICAL SPECIFICATIONS AZA1329A
| Parameter | Specification |
|---|---|
| Model | AZA1329A |
| Make | AZA LAB |
| Standard Compliance | DIN 51350-6, CEC L-45-99 |
| Motor Speed | 1475 ± 25 RPM |
| Temperature Control Mode | Imported Compressor |
| Sample Temperature | 60 ± 1°C |
| Sample Volume | 40 ± 0.5 ml |
| Test Load | 5000 ± 200 N |
| Test Period | 174000 s (Approx. 19 h 40 min) |
| Power | 5.5 kW |
| Power Supply | Standard Laboratory Supply |
| Dimensions (L × W × H) | 640 × 380 × 895 mm |
| Weight | Approx. 150 kg |
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