Grease
Grease NLGI 4
Lubricating grease, NLGI grade 4, worked penetration 175–205.
What is Grease NLGI 4?
Lubricating grease NLGI 4 from Synergysol Trading is a finished grease for bearings, chassis points, and plant service. Worked penetration at 25°C is 175–205, which is the NLGI 4 consistency band. The dropping point is a minimum of 80°C. Oil separation is a maximum of 10 mass percent. The copper-strip result is 1A.
NLGI consistency runs from 000, a fluid grease, to 6, a hard block. Grade 2 is the usual multipurpose bearing grease. Higher numbers are stiffer. Bright stock BS-150 is a base oil used to manufacture grease and is supplied separately.
Applications
Synergysol Trading supplies NLGI 4 grease for duties that specify this consistency.
Bearings. Equipment specified on NLGI 4 takes this worked penetration of 175–205.
Chassis and fleet service. Fleet grease points use the NLGI grade named for that fitting.
Plant maintenance. The copper-strip result of 1A and oil separation of 10% maximum are the checks held for the grade.
Dropping point. The dropping point is a minimum of 80°C on NLGI 4.
Specification
Worked penetration at 25°C — ASTM D217 — 175–205
Dropping point — ASTM D566 — Min. 80 — °C
Oil separation — ASTM D1742 — Max. 10 — mass%
Copper strip — ASTM D130 — 1A
These are the results held for this grade. The certificate of analysis supplied with the shipment applies to that cargo.
Other grades in this range
These are other grades Synergysol Trading supplies. The figures in this section belong to those grades.
NLGI 2 is penetration 265–295, NLGI 3 is penetration 220–250, and NLGI 5 is penetration 130–160. Each grade is ordered by its NLGI number. Bright stock BS-150 is the heavy base oil, supplied separately, at 476.2 mm²/s at 40°C.
Frequently asked questions
What is NLGI 4 grease?
A lubricating grease with worked penetration of 175–205 at 25°C, which is NLGI grade 4.
What is the dropping point?
The dropping point is a minimum of 80°C. Oil separation is a maximum of 10 mass percent.
What is the copper-strip result?
The copper-strip result is 1A, by ASTM D130.
How do the NLGI grades differ?
NLGI 2 is 265–295, NLGI 3 is 220–250, NLGI 4 is 175–205, and NLGI 5 is 130–160. A higher number is a stiffer grease.
How do I request NLGI 4 grease?
Send NLGI 4 grease, the quantity, packing, and delivery point to info@synergysoltrading.com. Phone +971 4 553 2197 or +971 50 669 3010.
Related grades
Request this grade
Email info@synergysoltrading.com with the grade, quantity, packing, and delivery point.
+971 4 553 2197 · +971 50 669 3010
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