Primrose
311 Blue Max Grease / NLGI # 2
311 Blue Max Grease / NLGI # 2
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Primrose Blue Max 311 is a smooth, deep blue, lithium complex grease formulated for operations from a MINUS 25°F but with a dropping point of 500°+F.
Applications:
Blue Max 311 is an extreme pressure (EP) grease. Blue Max 311 is recommended in soft and semi-fluid grades for extreme cold and for centralized lubrication systems. Blue Max 311 meets and exceeds GC/ LB specification.
Heavy Duty Equipment - High Temperature Wheel Bearings - High Speed Roller/Ball Bearings - Electric Motor Bearings - Throw Out Bearings - General Industrial/Automotive Grease requirements.
APPLICATIONS:
Blue Max 311 is an extreme pressure (EP) grease. Blue Max 311 is recommended in soft and semi-fluid grades for extreme cold and for centralized lubrication systems. Blue Max 311 meets and exceeds GC/ LB specification.
- Heavy Duty Equipment
- High Temperature Wheel Bearings
- High Speed Roller/Ball Bearings
- Electric Motor Bearings
- Throw Out Bearings
- General Industrial/Automotive Grease requirements
Technical Data Sheet
Open / downloadSafety Data Sheet
Open / downloadKey specifications
- NLGI grade
- No. 2 (worked 60 penetration 265-295, ASTM D217)
- Thickener
- Lithium complex
- Dropping point (typical)
- 500+ F (260+ C)
- Approximate operating temperature range
- minus 25 F to 280 F
- Water washout (ASTM D1264, typical)
- 2.8% loss at 175 F
- Timken OK load (ASTM D2509, typical)
- 60 lbs
- Four-ball EP weld point (ASTM D2596, typical)
- 400 kgf
- Specification
- Meets and exceeds GC/LB
Summarized from the manufacturer's Technical Data Sheet (see the Technical Data tab above). The full data sheet is the authoritative reference.
Common questions about 311 Blue Max Grease / NLGI # 2
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What is Primrose 311 Blue Max NLGI 2 grease used for?
Primrose 311 Blue Max NLGI No. 2 is a lithium complex extreme pressure (EP) grease for heavy duty equipment, high temperature wheel bearings, high speed roller and ball bearings, electric motor bearings, throw out bearings and general industrial or automotive grease needs. Primrose states Blue Max 311 meets and exceeds the GC/LB specification.
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What temperature range is 311 Blue Max NLGI 2 good for?
311 Blue Max NLGI No. 2 has an approximate operating temperature range of minus 25 F to 280 F, according to Primrose. Its dropping point, listed separately, is 500 F (260 C) or higher, but the operating range still tops out at about 280 F.
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Does 311 Blue Max NLGI 2 resist water washout and rust?
Yes, 311 Blue Max NLGI No. 2 resists washout and excessive dilution by water, according to Primrose, with a typical 2.8% loss at 175 F in the ASTM D1264 water washout test. It also passes the ASTM D1743 rust prevention test, and Primrose says Blue Max 311 protects steel and copper alloy bearings against rust and corrosion.
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Is 311 Blue Max NLGI 2 an extreme pressure grease for heavy loads?
Yes, 311 Blue Max NLGI No. 2 is an extreme pressure (EP) grease, and Primrose says its EP additives give wear protection for ball and roller bearings at high rpm and under heavy load. Typical results are a Timken OK load of 60 lbs (ASTM D2509) and a four-ball EP weld point of 400 kgf (ASTM D2596); these are ASTM test results, not a bearing load rating.
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Should I use 311 Blue Max NLGI 2 or a softer grade like NLGI 0 or 1?
Choose 311 Blue Max NLGI No. 2 when your equipment calls for a No. 2 grease; it is the grade Primrose publishes typical specifications for. For extreme cold or centralized lubrication systems, Primrose recommends Blue Max 311 in soft and semi-fluid grades without naming grade numbers, and 311 Blue Max also comes in NLGI No. 0 and No. 1, which are softer than No. 2.
