Grease Buyer's Guide
Manufacturer
Brand Name
Soap/Thickener
NLGI Grade
Application
Oil Viscosity cSt at 40°C
Oil Viscosity cSt at 100°C
Dropping Point °C
Max Op Temp °C
Min Op Temp °C
Color
Chevron SRI Grease
1 cartridge $9.95   
10 cartridge case $79.50   
400 lb drum $1856.00   


Manufacturer: Chevron
Brand Name: Chevron
Soap/Thickener: Polyurea
NLGI Grade: 2
Application: see below
Oil Viscosity cSt at 40°C:
(Kinematic)
116
Oil Viscosity cSt at 100°C:
(Kinematic)
12
Dropping Point °C: 243
Max Op Temp °C: 177
Min Op Temp °C: -30
Color: green
Worked Penetration: 280
Timken OK Load lb: unavailable
Extreme Pressure: no
Food Grade (NSF H1): no
Chevron SRI Grease is a high temperature ball and roller bearing grease.

It is formulated with ISO SYN® base stocks, a modern ashless, organic polyurea thickener coupled with high performance rust and oxidation inhibitors (the latter to provide superior rust protection in severe applications that many electric motors applications are exposed to in field operations). Its texture is smooth and buttery and its color is dark green.

As noted, Chevron SRI Grease NLGI 2 passes the Bearing Rust Test, ASTM D5969 with 10% synthetic sea water. It also is rated at a 1a on the ASTM D4048 Copper Corrosion Test. These properties help to provide longer bearing life under high speed and high temperature operation than most other widely used antifriction bearing greases. High Temperature Bearing Life, ASTM D3336, testing shows that the life of a 204 K bearing lubricated with Chevron SRI Grease NLGI 2 and operating at 150°C (302°F) and 10,000 rpm is about 3,000 hours. This is nearly 10 times the life possible when using conventional lithium greases. Under normal operating temperatures and conditions, Chevron SRI Grease NLGI 2 can be used as a "Life Pack" lubricant in sealed bearings. Note that in today’s more modern, high output (horsepower), high load electric motors, there are times where these units employ ball bearings and roller element bearings on the same motor. On units where horsepower and load are considered high on the roller element bearing, EP greases should be employed. In these instances, Chevron Black Pearl® Grease EP would be the grease of choice and is fully compatible to use with Chevron SRI Grease.

Features
  • Wide application range - Suitable for high rpm operation, operating temperatures ranging from -29°C to 177°C (-20°F to 350°F).
  • Excellent oxidation stability - Provides exceptional bearing life at operating temperatures in the range of 93°C to 177°C (199°F to 350°F).
  • Excellent rust protection - Provides exceptional rust protection as defined by Bearing Rust, ASTM D5969 using 10% Synthetic Sea Water and also does extremely well on the Dynamic Bearing Rust (EMCOR) Test, ASTM D6138 using 10% Synthetic Sea Water.
Applications:
Chevron SRI Grease NLGI 2 is recommended:
  • for use in a wide range of automotive and industrial applications
  • for use in antifriction bearings operating at high speeds (10,000 rpm and greater)
  • where the operating temperatures are on the order of 150°C (302°F) and higher
  • where there is a likelihood that water or salt water will get into the bearings
It performs satisfactorily in bearings at temperatures as low as -29°C (-20°F). Applications where Chevron SRI Grease will outperform most other greases include:
  • As a "Life Pack" lubricant by manufacturers of automotive generators, alternators, and starters to protect against the effects of moisture and roadsplash (factory-filled for life ball bearings)
  • Bearings on air-conditioning units in homes and other buildings
  • Unsealed electric motor bearings operating under moist conditions
  • Applications where silent operations are beneficial
Original Equipment Manufacturers that specifically recommend Chevron SRI Grease NLGI 2 are:
  • Bearing manufacturers: NSK, NTN, FAG, NMB, and Koyo.
  • Electric motor manufacturers: Reliance Electric Company, U.S. Motors Division of Emerson Electric Company, Toshiba International, and Lincoln Motors.
Chevron SRI Grease NLGI 2 is certified by NSF and is acceptable as a lubricant where there is no possibility of food contact (H2) in and around food processing areas. The NSF Nonfood Compounds Registration Program is a continuation of the USDA product approval and listing program, which is based on meeting regulatory requirements of appropriate use, ingredient review and labeling verification.

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