Owners Manual • Rexnord
®
Planetgear
™
7000 Speed Reducers
(Page 10 of 33)
Size Mercury/Mars
158-110
10/21 (Supersedes 01/15)
© Rexnord Corporation. All Rights Reserved.
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TABLE 9 — Summary of Food Grade
Lubricants and Greases
Petroleum-Based
R & O Inhibited
See Table12A
Extreme Pressure (EP)
See Table 12B
Synthetic Lubricant, Polyalphaolefin Type (PAO)
R & O Inhibited
See Table 13A
Extreme Pressure (EP)
See Table 13B
Food Grade Grease
See Table 14
FOOD GRADE LUBRICANTS
Guidance for selecting petroleum-based and synthetic-
based food grade lubricants are shown below in
Table 9
.
For general lubrication guidelines, refer to the first part of
the “Lubrication Recommendation” section.
FOOD GRADE LUBRICANT SELECTION
PROCESS
1. Refer to
Table 10
and
11
for proper lubricant viscosity
grade based on ambient temperature range.
2. Refer to
Table 9
for summary of lubricant types.
3. Using proper lubricant table and viscosity grade, select
desired lubricant manufacturer and name.
4. Refer to
Table 3
for approximate oil capacity to purchase.
oil for analysis approximately every 1,000 hours for
petroleum food grade lubricants or every 3,000 hours for
synthetic food grade lubricants. In the absence of more
specific limits, the guidelines listed below may be used to
indicate when to change petroleum or polyalphaolefin type
synthetic food grade lubricants:
1. Water content is greater than 500 ppm (parts per
million) (0.05%).
2. Iron content exceeds 150 ppm.
3. Silicon (dust/dirt) exceeds 25 ppm, above reference
sample from new oil container.
4. Copper content exceeds 75 ppm.
5. TAN (Total Acid Number) 50% increase above reference
sample from new oil container.
6. Viscosity changes more than ±15%.
7. Solid particle contamination code exceeds 25/22/18 for
particle sizes ≥4/≥6/≥14 microns, respectively per ISO
4406.
Laboratory analysis is recommended for optimum lubricant
life and gear drive performance. Oil samples should be
taken from the oil level hole, not the drain hole.
PETROLEUM LUBRICANTS (FOOD GRADE)
— In the
absence of oil analysis, change gear oils every 6 months
or 2,500 operating hours, whichever occurs first. Change
oil more frequently when gear drives operate in extremely
humid, chemical, or dust laden atmospheres. In these
cases, lubricants should be changed every 3 to 4 months
or 1,500 to 2,000 hours. If the drive is operated in an area
where temperatures vary with the seasons, change the oil
viscosity grade to suit the temperature, refer to
Table 10
.
Lubricant suppliers can test oil from the drive periodically
and recommend economical change schedules.
SYNTHETIC LUBRICANTS (FOOD GRADE)
— In
the absence of oil analysis, synthetic lube change
intervals can be extended to 8,000 hours depending
upon operating temperatures. Laboratory analysis is
recommended for optimum lubricant life and drive
performance. Change lube with change in ambient
temperature, if required. Refer to
Table 11
.
TABLE 10 — Viscosity Grade
Recommendation for Food
Grade Petroleum-Based
Lubricants
OUTPUT
SPEED
AMBIENT TEMPERATURES
+15° to +60°F
(-9° to +16°C)
+50° to +125°F
(+10° to +52°C)
ISO-VG
AGMA
ISO-VG
AGMA
RPM
BELOW 20
100
3
150
4
20 RPM
And ABOVE
100
3
150
4
TABLE 11 — Viscosity Grade Recommendation for Synthethic Lubricants
Ambient
Temperature
Range
Cold Climates
Normal Climates
-30° to +10°F
(-34° to -12°C)
-15° to +50°F
(-26° to -10°C)
0° to +80°F
(-18° to +27°C)
+10° to +125°F
(-12° to +52°C)
ISO-VG
AGMA
ISO-VG
AGMA
ISO-VG
AGMA
ISO-VG
AGMA
RPM
BELOW 20
32
0
68
2
150
4
320
6
20 RPM
And ABOVE
32
0
68
2
150
4
220
5
FOOD GRADE LUBRICANTS (TABLES 12A,12B, 13A &
13B)
— Food grade lubricants are a class of lubricants
registered as H1 by NSF (National Sanitation Foundation).
They contain base stock and additives which comply
with Food and Drug Administration Title 21 CFR 178.3570
regulations for lubricants with incidental food contact. Base
stock can be petroleum oil or different types of synthetic
lubricant. Food grade lubricants are not the same as
biodegradable or environmentally friendly lubricants.
Rust and corrosion inhibitors used to protect gear drive
during shipment are not qualified as food grade fluids. Flush
out inhibitor oil before filling with food grade lubricant.
Tables 12A, 12B, 13A 13B
&
14
list food grade lubricants
that have performance properties meeting Rexnord
specifications. They are not exclusive recommendations but
serve as a guide for making proper lubricant selections.
CLIMATE CONDITIONS
— Ambient temperature in
immediate vicinity of gear drive is very important for
determining viscosity grade. Table 10 provides viscosity
grade selections for petroleum-based lubricants. See
Table 11
for synthetic lubricants.
LUBRICANT CHANGES
OIL ANALYSIS REPORT (FOOD GRADE)
— Checking oil
conditions at regular intervals is recommended. Sample
