Instruction manual

Table 3 — Recommended Lubrication Intervals at Standard Service Conditions
NEMA (IEC)
Frame Size
Rated Speed - RPM
3600 1800 1200 900
Up to 215 (132) 5500 Hrs. 12000 Hrs. 18000 Hrs. 22000 Hrs.
254 to 286 (160 - 180) 3600 Hrs. 9500 Hrs. 15000 Hrs. 18000 Hrs.
324 to 365 (200 - 225) 2200 Hrs.(Note 3) 7400 Hrs. 12000 Hrs. 15000 Hrs.
404 to 5000 (280 - 315) 2200 Hrs.(Note 3) 3500 Hrs. 7400 Hrs. 10500 Hrs.
Note 3: Bearings in 404 through 5000 frame, 2 pole motors are either 6313 or 6314 bearings and the
lubrication interval is shown in the table. If roller bearings are used, the bearings must be
lubricated more frequently. Divide the listed lubrication interval by two.
Table 4 — Lubrication Amounts per Frame
NEMA (IEC)
Frame Size
Bearing Description
These are the “Large” bearings (Shaft End) in each frame size (Note 4)
Largest
bearing
in size
category
OD
D mm
Width
B mm
Grease gun
strokes
(Note 5)
Volume of grease to
be added
ounces grams
Up to 215 (132) 6307 80 21 2.5 0.16 4.7
254 to 286
(160 - 180)
6311 120 29 5.0 0.32 9.1
324 to 365
(200 - 225)
6313 140 33 7.0 0.43 12.2
404 to 5000
(280 - 315)
NU322 240 50 18.0 1.11 31.5
Note 4: Smaller bearings in size category may require reduced amounts of grease.
Note 5: See “Correct Grease Gun Procedures” for information on estimating the output of hand-
operated grease guns.
37