Grain Systems Bucket Elevtors, Conveyors, Series II Sweeps PNEG-1204 - Manual (Page 57)

GREASE LUBRICATION
DODGE IP and ISAF Unitized Spherical roller bearings
are prepacked with a NLGI #2 lithium 12-Hydroxy-
stearate grease. For relubrication select a grease that is
compatible with #2 lithium 12-Hydroxystearate.
Relubricate in accordance with the recommendation of
Table 2.
MAINTENANCE
WARNING
To ensure that drive is not unexpectedly started,
turn off and lock-out or tag power source before
proceeding. Failure to observe these precautions
could result in bodily injury.
EXPANSION BEARING
Total Expansion (in.)
Bore Size IP ISAF
1 1 /
8
- 1 1 /
2
3 /
16
7 /
32
1 5 / 8 - 1 7 / 8 1 / 4 7 / 32
1 15 /
16
- 2 1 /
4
17 /
64
2 13 /
16
1 /
4
7 /
32
2 1 /
4
- 2 7 /
16
1 /
4
5 /
16
2 1 /
2
- 3 3 /
16
1 /
4
15 /
64
3 1 / 4 - 3 1 / 2 1 / 4 3 / 8
3 11 /
16
- 4 5 /
16 3 /
8
4 7 /
16
- 5 3 /
8
3 /
8
5 7 /
16
- 7 N/A 3 /
8
STORAGE OR SPECIAL SHUT DOWN
If equipment will be idle for some time, before shutting
down, add compatible grease to the bearing until grease
purges from the seals. This will ensure protection of the
bearing, particularly when exposed to severe environ-
mental conditions. After storage or idle period, add fresh
grease to the bearing before starting.
TABLE 3 – Cap Bolt Torque for ISAF Pillow Blocks
(Non-Expansion & Expansion) (Grade 5 Bolts)
2 Bolt Base 4 Bolt Base
Torque
Bore Bolt Torque Bolt
Size (In.) Size Ft.-Lbs. Size Ft.-Lbs.
1 7 /
16
-1 11 /
16
3 /
8
-16 24-30 – –
1 15 /
16
-2 3 /
16
7 /
16
-14 40-50 – –
2 7 /
16
-2 1 /
2
1 /
2
-13 60-75 1 /
2
-13 60-75
2 11 / 16 -3 5 / 8 -11 120-150 5 / 8 -11 120-150
3 7 /
16
-3 1 /
2 3 /
4
-10 208-260 3 /
4
-10 208-260
3 15 /
16
-4 – – 3 /
4
-10 208-260
4 7 /
16
-4 1 /
2
– – 7 /
8
-9 344-430
4 15 /
16
-5 – – 1-8 512-640
5 7 /
16
-5 1 /
2
– – 1-8 512-640
5 15 / 16 -6 – – 1-8 512-640
6 7 /
16
-6 1 /
2
– – 1-8 512-640
6 15 /
16
-7 – – 1-8 512-640
Table 2
Regreasing Intervals (Months) (Based on 12 hours per day, 150 degrees F. Max)
SHAFT RPM
SIZE 250 500 750 1000 1250 1500 2000 2500 >3000
1 7 /
16
4 3 2 2 1 0.5 0.25 0.25 0.25
1 11 /
16
4 3 2 2 1 0.5 0.25 0.25 0.25
1 15 / 16 , 2 SM 4 3 2 2 1 0.5 0.25 0.25 0.25
2 LG, 2 3 /
16
3.5 2.5 1.5 1 0.5 0.5 0.25 0.25 0.25
2 3 /
8
, 2 7 /
16
3 2 1.5 1 0.5 0.25 0.25 0.25 —
2 11 / 16 , 2 3 / 4 , 2 15 / 16 3 2 1.5 1 0.5 0.25 0.25 0.25 —
3 7 /
16
2.5 1.5 1 0.5 0.25 0.25 0.25 — —
3 15 /
16
2 1.5 1 0.5 0.25 0.25 — — —
4 7 /
16
2 1.5 1 0.5 0.25 — — — —
4 15 /
16
1.5 1 0.5 0.25 — — — — —
5 7 /
16 -
5 1 /
2
1.5 1 0.5 0.25 — — — — —
5 15 /
16 -
7 1 0.5 0.5 0.25 — — — — —
OPERATION TEMPERATURES
Abnormal bearing temperatures may indicate insufficient
lubrication. If the housing is too hot to touch for more
than a few seconds, check the temperature by applying
a thermometer at the top of the pillow block with the ther-
mometer top surrounded by putty.
Because the thermometer reading will be approximately
10°F lower than the actual bearing temperature, add ten
degrees to the reading and compare to the temperature
rating of your grease. If the bearing temperature reading
is consistent and operating within the recommended lim-
its of your grease, the bearing is operating satisfactorily.
The recommended maximum operating temperature for
No. 2 lithium base grease is 200°F.
6954 Layout 3/1/02 8:50 AM Page 4
52 PNEG-1204 Enclosed Belt Conveyors