美孚28合成航空润滑脂
美孚全合成航空润滑脂 (Mobilgrease 28)
产品介绍:最高的性能表现、抗磨、宽温，结合了聚烯烃（PAO）合成基础油独一无二的特性和有机金属粘土增稠剂的有点（无皂基）。硬度介于NLGI 1和2之间。宽温度应用范围，不含石蜡的合成基础油。低牵引系数，提供出众的低温泵送性，极佳的低温启动和低额定转速扭矩。可降低载荷滚动轴承的运行温度……
美孚合成航空滑脂28（mobilgrease 28）
美孚合成航空滑脂28是使用合成烃基础油，符合美国军方规格MIL-G81322C的高质非皂基滑脂。基多项优异性能亦为工业应用上的理想产品。
|
产品名称 |
NIGI 编号 |
皂基 |
针入度 （操作60次后） |
结构 |
滴点℃ |
颜色 |
基础油粘度38℃厘斯 |
|
美孚合成航空滑脂28 |
2 |
非皂基 |
285 |
光滑 |
260 |
深红 |
32 |
Mobilgrease 28
Synthetic Aviation Grease
Product Description
Mobilgrease
28 is a supreme performance, wide-temperature, antiwear grease designed
to combine the unique features of a polyalphaolefin (PAO) synthetic
base fluid with an organo-clay (non-soap) thickener. Its consistency is
between an NLGI No. 1 and No. 2 grease. It offers outstanding
performance over a wide temperature range. The wax-free nature of the
synthetic base fluid, together with its high viscosity index compared to
mineral oils, provide excellent low temperature pumpability, very low
starting and running torque, and can help reduce operating temperatures
in the load zone of rolling element bearings.
The clay thickener
gives Mobilgrease 28 a high dropping point value of around 300oC, which
provides excellent stability at high temperatures. Mobilgrease 28
resists water washing, provides superior load-carrying ability, reduces
frictional drag, and prevents excessive wear. Tests show that
Mobilgrease 28 lubricates effectively rolling element bearings under
conditions of high speeds and temperatures. Mobilgrease 28 has also
shown excellent ability to lubricate heavily loaded sliding mechanisms,
such as wing flap screw jacks.
For more than 30 years,
Mobilgrease 28 has been the multi-purpose grease of choice for military
and related aviation applications, worldwide.
Features and Benefits
A
particular requirement of aviation greases is the need to resist high
temperature stresses, while providing excellent starting and low torque
at low-temperature. To meet this combination of needs ExxonMobil product
formulation scientists chose proprietary synthetic base oils for
Mobilgrease 28 because of their low volatility, exceptional
thermal/oxidative resistance, and superb low-temperature capability.
Formulators chose specific thickener chemistry and a proprietary
additive combination which helps maximize the benefits of the synthetic
base oils.
Mobilgrease 28 meets the requirements of key military
and commercial aviation specifications and has built up a superb
reputation for performance and reliability among users around the world.
Mobilgrease 28 provides the following advantages and potential benefits:
FeaturesAdvantages and Potential Benefits
| High viscosity index (VI) synthetic base stock with no wax content |
Allows wide operating temperature range - outstanding high and low temperature performance. Provides thicker fluid films protecting against wear of equipment parts operating at high temperature. Causes low resistance during start-up at very low temperatures |
| Excellent protection against wear and corrosion | Superb bearing protection and helps extend bearing life and reduce bearing replacement costs |
| Extreme-pressure protection characteristics | Avoids excessive wear, even under shock load |
| High thermal/oxidative stability | Long relubrication intervals |
| High resistance to water washout | Maintains excellent grease performance in adverse weather and other water-exposure conditions |