Braolub K266
Dry Screw Vacuum Pump Bearing Grease
Description:
SEIVIO Braolub K266 Dry Screw Vacuum Pump Bearing Grease is formulated with low-vapor-pressure linear PFPE base oil and ultrafine nanoscale PTFE thickener. It is designed for main, support and gearbox-side bearings in dry screw vacuum pumps. Optimized for high vacuum, high rotational speeds and oil-contamination-free operation, it supports long, stable equipment operating cycles.
Benefits:
- Excellent gas-tightness, lubricity, chemical stability and mechanical stability.
- Durable at high temperatures and through temperature changes, maintaining stable torque over long periods.
- Strong adhesion resists throw-off and creep, avoiding migration into pump chambers, screws or pumped media.
- Good stability resists oxidation, carbonization and sludge formation that can seize bearings.
- Low volatility in vacuum limits the transfer of light fractions into vacuum chambers and contamination of semiconductors or coatings.
- Compatible with oil seals, various plastics and elastomers without causing aging or rupture.
Product specifications:
Property | Data |
Color | Visual |
Texture | Smooth |
Odor | Mild |
Specific gravity,@ 77°F(25°C) | 1.95 |
Dropping point,ASTM D-2265 | None |
Viscosity,cSt @ 40℃ | 100 |
Penetration,ASTM D-217 @ (25℃) | 265-295 |
Four-ball test, ASTM D2596,N | 3000 |
Operating temperature,℃ | -50~220 |
Shelf life (unopened, fully sealed) | 5 years |
The data provided are typical values; minor performance-neutralchanges are permitted,Adjustments that do not affect product performance may occur during normal production. The information herein is subject to change without notice. |
Applications:
For high-cleanliness vacuum pumping systems used in PVD/CVD, wafer drying and semiconductor, photovoltaic and LED production. Also suitable for dry screw pumps serving pharmaceutical and food-industry vacuum dryers, freeze dryers and distillation units, and pumps used in fine-chemical distillation, solvent recovery and vacuum ovens for lithium-battery cathode materials.
Packaging:
1kg/pack Order No. 210920
Storage:
Store in a dry place.