美孚全合成航空润滑脂28(MOBIL GREASE 28)
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- 供应商
- 上海西塞诺润滑油有限公司 商铺
- 认证
- 报价
- 人民币¥3600.00元每桶
- 类别
- 航空润滑脂
- 型号
- GREASE28
- 品牌
- 美孚
- 所在地
- 中国 上海市松江区 沪松公路2511弄909号
- 联系电话
- 86 021 67769079
- 手机号
- 18917069099
- 联系人
- 王桦 请说明来自顺企网,优惠更多
- 让卖家联系我
产品详细介绍
类别 | 航空润滑脂 | 型号 | GREASE 28 |
品牌 | 美孚 | 比重 | -- |
闪点 | 310(℃) | 40℃运动粘度 | 29(cSt) |
粘度指数 | 1.5 | 倾点 | -54(℃) |
针入度 | --(mm) | 稠化剂类型 | 粘土 |
应用领域 | 航空用脂 |
美孚全合成航空润滑脂 (mobilgrease 28)
产品介绍:Zui高的性能表现、抗磨、宽温,结合了聚烯烃(pao)合成基础油的特性和有机金属粘土增稠剂的优点(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,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……
典型特性产品名称 | nlgi等级 | 增稠剂类型 | 粘度cst(40℃) | 粘度cst(100℃) | 颜色 目视 | 滴点,astm d2265 | 工作渗透试验,astm d 217 |
mobil grease 28 | 1.5 | 粘土 | 29 | 6 | 红色 | 310 | 295 |
以下部分为美孚原版英文资料
mobilgrease 28
synthetic aviation grease product descriptionmobilgrease 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.
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:
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 |
mobilgrease 28 is designed for the lubrication of plain and
rolling bearings at low to high speeds, and splines, screws, worm
gears, and other mechanisms where high friction reduction, low
wear, and low lubricant friction losses are required. the
recommended operating temperature range is -54ºc to 177ºc (-65ºf to
350ºf) with appropriate relubrication intervals.
mobilgrease 28 is recommended for use in landing wheel assemblies,
control systems and actuators, screw jacks, servo devices,
sealed-bearing motors, oscillating bearings, and helicopter rotor
bearings on military and civil aircraft. subject to equipment
manufacturer approvals, it can also be used on naval shipboard
auxiliary machinery and where superseded specifications mil-g-81322
(wp), mil-g-7711a, mil-g-3545b, and mil-g-25760a are
recommended.
mobilgrease 28 is also recommended for industrial lubrication,
including sealed or repackable ball and roller bearings wherever
extreme temperature conditions, high speeds, or water washing
resistance are factors. typical industrial applications include
conveyor bearings, small alternator bearings operating at
temperatures near 177ºc (350ºf), high-speed miniature ball
bearings, and bearing applications where oscillatory motion, and
vibration create problems.
mobilgrease 28 is qualified by the u.s. military under
specification mil-prf-81322, general-purpose, aircraft, and
specification dod-g-24508a (navy) for shipboard auxiliary
machinery. it is a u.s. military symbol wtr and nato code number
g-395 grease.
mil-prf-81322g | x | |
dod-g-24508a, amendment 4 | x | |
nato g-395 | x |
nlgi grade | 1 1/2 | ||
thickener type | clay (non-soap) | ||
color | visual | dark red | |
structure | visual | smooth, buttery | |
dropping point, ºc (ºf) | astm d 2265 | 308 (586) | 232 (450) min |
viscosity of base oil, cst | astm d 445 | ||
at 40ºc | 30 | ||
at 100ºc | 5.7 | ||
low temp. torque at -54ºc (-65ºf), nm (g-cm) | astm d 1478 | ||
starting | 0.40(4100) | 0.98 (10,000) max | |
running, after 1 hr | 0.05 (510) | 0.098 (1,000) max | |
penetration @ 25ºc (77ºf), 60 stoke worked, mm/10 | astm d 217 | 295 | 265-320 |
extended worked penetration stability, 100,000 strokes, mm/10 | ftm 313 | 310 | 350 max |
oil separation, 30 hrs at 177ºc, wt % | astm d 6184 | 3.8 | 2.0 - 8.0 |
evaporation loss, 22 hrs at 177ºc, wt % | astm d 2595 | 6 | 10 max |
copper strip corrosion, 24 hrs at 100ºc | astm d 4048 | 1b | 1b max |
four-ball wear, scar dia, mm | astm d 2266 | 0.6 | 0.8 max |
load wear index, kgf | astm d 2596 | 38 | 30 min |
rust protection, 48 hrs at 125ºf, › 1mm dia corrosion spots | astm d 1743 | pass | 0 |
water washout, 1 hr at 41ºc, wt % | astm d 1264 | 1 | 20 max |
high temperature performance, hrs at 177ºc | astm d 3336 | pass | 400 min |
oxidation stability, pressure drop in kpa | astm d 942 | ||
100 hrs at 99ºc | pass | 83 max | |
500 hrs at 99ºc | pass | 172 max | |
storage stability, 6 months at 38ºc | ftm 3467 | pass | pass |
dirt count, particles/ml | ftm 3005 | ||
25-74 micron | pass | 1000 max | |
75 micron or larger | 0 | 0 | |
oscillation friction and wear, scar dia, 35,000 cycles, 90º angle, aluminum bronze block, mm | modified astm d 3704 | pass | 6.35 max |
rubber swell, l type synthetic, 1 week at 70ºc (158ºf), vol % | ftm 3603 | 6 | 10 max |
(1) typical properties are typical of those obtained with normal production tolerance and may vary slightly, while remaining within specified limits. |
based on available toxicological information, this product is
not expected to produce adverse effects on health when used and
handled properly. information on use and handling, as well as
health and safety information, can be found in the material safety
data sheet (msds) which can be obtained from your local distributor
or via the internet on http://www.exxonmobil.com/lubes.
pds av-05
the exxonmobil logotype and mobilgrease are trademarks of exxon mobil corporation, or one of its subsidiaries.
6-2011
exxon mobil corporation
3225 gallows road
fairfax, va 22037-0001
for additional technical information or to identify the nearest
u.s. exxonmobil supply source, call 1800 662-4525.
http://www.exxonmobil.com
due to continual product research and development, the information contained herein is subject to change without notification. typical properties may vary slightly.
© 2001-2011 exxon mobil corporation. all rights reserved..
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