Falk Long Term Grease - Flexible Coupling Lubricant
Facts on Lubrication
LTG is Available in Polybags, Cartridges, Pails, or Drums |
Separation — Grease is a blend of oil and a thickener or soap. These compounds
are not very stable and will eventually bleed or separate under the high centrifugal
forces generated in many coupling applications. Once a grease begins to separate,
the thickener accumulates in the areas where lubrication is required, and rapid
wear of the contacting surfaces occurs. The oil is now free to leak out of the
coupling past the seals, causing premature failure of the coupling.
Service
Intervals for All-Purpose Greases — It is common practice to lubricate all rotating
equipment with one or two all purpose greases.
Most
greases which are used as coupling lubricants were initially developed as bearing
lubricants.
Bearing greases have a low viscosity
and high bleed rate which is desirable to avoid heat caused by rolling friction.
However, rolling friction is not present in couplings where the only movement
is a sliding action caused by misalignment of shafts or thermal growth.
Bearing
lubricants are adequate if the coupling manufacturer’s service intervals are followed.
These intervals are usually six (6) months for gear couplings and one (1) year
for grid couplings. Maintenance & DowntimeIn
today’s industrial plants the cost of equipment downtime for servicing can easily
exceed hundreds of dollars per hour. So rather than shutting down this critical
equipment, the connecting shaft couplings are frequently allowed to run until
failure occurs or until the more expensive drive components in the system require
maintenance.
In an attempt to hold the line of
high maintenance costs, some users have switched to non-lubricated coupling designs.
This switch seldom works out for the best however, since many elastomer designs
have a short life expectancy and they induce problems elsewhere in the drive system.
When they do fail, the connected equipment often has to be moved to replace the
element. Now LTG — What is it?Rexnord
engineers have spent years measuring the wear rates on coupling components using
various lubricants and coatings. Virtually every common industrial lubricant has
been centrifuged under laboratory conditions per ASTM standard test methods for
“Oil Separation from Lubricating Grease by Centrifuging.” The results of extensive
research indicated that greases with high viscosities and low bleed rates produce
the longest life.
Falk LTG is specially formulated
to provide superior lubrication for flexible shaft couplings. How
does it work?The consistency of Falk LTG changes
with operating conditions. As manufactured it is an NLGI #1/2 grade. Working of
the lubricant under actual service conditions causes it to become semifluid while
the grease near the seals will set to a heavier grade, helping to prevent leakage.
LTG is highly resistant to separation, easily
out performing all other lubricants tested. The resistance to separation allows
the lubricant to be used for relatively long periods of time.
Benefits for your Application -
Increased
coupling life. -
Significantly extended relubrication
intervals. -
Reduced maintenance costs. -
Reduced
downtime. -
Superior lubrication. -
High
load carrying capabilities. -
Usable up to 250°F
(121°C). USDA ApprovalLTG
has the United States Department of Agriculture Food Safety & Inspection Service
approval for applications where there is no possibility of contact with edible
products (H-2 rating). CompatibilityFalk
LTG grease is compatible with most coupling lubricants. For optimum performance
it is recommended that couplings be cleaned of old grease before packing with
LTG. Extended Maintenance IntervalsSteelflex®
— When Steelflex grid couplings are initially lubricated with LTG, scheduled periodic
maintenance is not needed. You can now get the superior protective features of
the Steelflex, plus the toughness of steel, and eliminate periodic maintenance
expense. Falk recommends that such couplings be inspected and relubed only when
the connected equipment is being serviced or the coupling is opened for alignment
checks.
Lifelign® Gear Couplings — Re-lube
intervals for sensitive gear couplings have been extended from six (6) months
to three (3) years. |
|
| Thickener | |
Lithium Soap/Polymer | | | |
| | Base
Oil | | Highly
Refined Mineral | | | |
| | Oil
Viscosity @ 100°F (38°C) | |
3300SSU (715cSt) | |
Oil Viscosity @ 210°F (99°C) | |
163SSU (33cSt) | | | |
| | NLGI
Grade | |
1/2 | | | |
| | Consistency
(ASTM D-217)- 60 stroke worked penetration | |
value in the range of 315-360 measured at 77°F (25°C). |
| | |
| | Timken
EP O.K. Load (ASTM D 2509) | |
40 lbs. | | | |
| | Four
Ball EP (ASTM D 2596) | | Load
Wear Index | |
46 kgf | | Weld
Point | |
250 kgf | | | |
| | Four
Ball Wear, Scar (ASTM D 2266) | |
.66 mm | | | |
| | Dropping
Point | |
350°F (177°C) min. | | | |
| | Flash
Point | |
450°F (232°C) | | | |
| | Oxidation
and Rust Inhibitors | |
Yes | | | |
| | Centrifugal
Separation | | (ASTM
D 4425-84) | |
K36s 2/24 max. | | | |
| | Color | |
Dark Brown | | | |
| | Operating
Range | |
-20°F (-29°C) to 250°F (121°C) | |
| | |
| Operating Speed Range |
| Steelflex Couplings | |
All Speeds | |
Gear Couplings | |
See Service Manual 458-010 | 5 Year
Warranty A new Steelflex coupling initially lubricated with the proper
amount of LTG as described in the service manual, operated within the specified
ambient temperature range and installed and aligned within the limits specified
in the installation manual is warranted for five (5) years against lubrication
related grid member failure. Packaging Falk LTG is packaged to
suit every need. - Polybags
- Included with Sizes 1020-1090T
couplings for initial handpacking at installation.
-
- 14 ounce cartridges
- For use in standard industrial lubrication guns.
-
- 35 pound
pails
-
- 120 pound kegs
- For plants with many small
couplings or large size couplings. Best for hand packing.
-
- 400
pound drums
- For plants with a pressurized lubrication system.
-
- A
10-pack of 14 oz. cartridges or a case of 3-10 packs of 14 oz. cartridges.
- Ideal for distributor stocks.
-
| Required Lube Wt-Lbs |
Steelflex
Cplg
Size
| Required
Lube
Wt-lbs
(kg)
|
Gear
Cplg
Size*
| Required
Lube
Wt-lbs
(kg)
|
GF10 & 20
CplgSize
| Required
Lube
Wt-lbs
(kg)
|
GC 02
Cplg
Size |
Required
Lube
Wt-lbs
(kg) |
| 1020T |
.06
(.027) | |
|
|
|
|
|
| 1030T |
.09 (.040) |
1010G |
.09
(.041) | 1GF |
.09 (.041) |
1010G |
.025
(.011) | | 1040T |
.12
(.055) | |
| |
| |
|
| 1050T |
.15 (.068) |
1015G |
.16
(.073) | 1 1/2 GF |
.16
(.073) | 1015G |
.063 (.0283) |
| 1060T |
.19 (.086) |
|
| |
| |
|
| 1070T |
.25 (.114) |
1020G |
.25
(.11) | 2 GF |
.25 (.11) |
1020G |
.094
(.042) | | 1080T |
.38
(.173) | 1025G |
.50 (.23) |
2
1/2 GF | .50 (.23) |
1025G |
.144
(.065) | | 1090T |
.56
(.255) | 1030G |
.80 (.36) |
3
GF | .80 (.36) |
1030G |
.201
(.093) | | 1100T |
.94
(.427) | 1035G |
2.00 (.91) |
3
1/2 GF | 1.20 (.54) |
1035G |
.269
(.122) | | 1110T |
1.12
(.509) | 1040G |
2.50 (1.14) |
4GF |
2.00
(.91) | |
|
| 1120T |
1.62
(.736) | 1045G |
3.00 (6.6) |
4
1/2 GF | 2.30 (1.0) |
|
|
| 1130T |
2.0 (.909) |
1050G |
3.50
(1.59) | 5 GF |
3.90 (1.8) |
|
|
| 1140T |
2.5 (1.136) |
1055G |
4.00
(1.81) | 5 1/2 GF |
4.90
(2.2) | |
|
| 1150T |
4.3
(1.955) | 1060G |
4.50
(2.05) | 6 GF |
7.00 (3.2) |
|
|
| 1160T |
6.2 (2.818) |
1070G |
5.00
(2.27) | 7 GF |
9.60 (4.4) |
|
|
| 1170T |
7.7 (3.5) |
1080G |
21
(9.55) | |
| |
|
| 1180T |
8.3 (3.773) |
1090G |
27 |
|
| |
|
| 1190T |
9.7 (4.409) |
1100G |
33 |
|
| |
|
| 1200T |
12.4 (5.636) |
1110G |
39 |
|
| |
|
| 1210T |
23.2 (10.55) |
1120G |
46 |
|
| |
|
| 1220T |
35.4 (16.09) |
1130G |
72 |
|
| |
|
| 1230T |
53.0 (24.09) |
1140G |
73 |
|
| |
|
| 1240T |
74.5 (33.86) |
1150G |
90 |
|
| |
|
| 1250T |
110.5 (50.23) |
1160G |
95 |
|
| |
|
| 1260T |
148.1 (67.32) |
1180G |
110 |
|
| |
|
| |
| 1200G |
150 |
|
| |
|
| * Refer to Selection Guide 451-110 for larger
sizes. |
|
