– 14 –
(3) Bearing tables
Table 11 Bearing list
Motor type
Frame symbol
No. of poles
Load side
Anti-load side
SF-PR
SF-PRV
80M
All poles
6204ZZ
6204ZZ
90L
6205ZZ
6205ZZ
100L
6206ZZ
6205ZZ
112M
6207ZZ
6206ZZ
132S
132M
}
6308ZZ
6207ZZ
160M
160L
}
6309ZZ
6308ZZ
180M
6311ZZ
6310ZZ
180L
4 poles
6312ZZ
6310ZZ
180LD
2 poles
6312ZZC3
6311ZZ
6 poles
6312ZZ
6311ZZ
200LD
2 poles
6312ZZC3
6312ZZC3
4 poles or more
6315ZZ
6312ZZ
225S
2 poles
6312ZZC3
6312ZZC3
4 poles or more
6315ZZ
6312ZZ
(Note) ZZ indicates a shielded ball bearing, and C3 indicates radial internal clearance (Refer to Table 14-2).
(4) Grease replenishment frequency and whole grease change frequency
Refer to Table 12 to determine the grease lubrication based on the bearing number (BEARING) indicated on the
nameplate and the number of poles. (The grease replenishment frequency is indicated on the "Grease lubrication
procedure" instruction plate.)
When exceeding the number of times of grease replenishment, disassemble the motor and clean the discharge
ports of the bearings. Remove the old grease and stuff the bearing with the fresh grease.
(5) Grease replenishment amount and initial charge amount (The amount of grease is also indicated on the
"Grease lubrication procedure" instruction plate.)
Table 12 Grease replenishment amount, grease replenishment frequency and whole grease change frequency
Bearing
number
Bearing dimensions
Replenishment
amount while in
usual operation
g
Initial charge
amount during
disassembling
g
Replenishment frequency (hours)
Inner
diameter
Outer
diameter
Width
12 poles
8 poles
6 poles
4 poles
2 poles
6311
6312
6313
6314
6315
6316
55
60
65
70
75
80
120
130
140
150
160
170
29
31
33
35
37
39
35
40
45
50
55
60
80
100
120
150
180
210
8500
8500
8500
8500
8500
8500
8500
8000
7500
7000
6500
6500
6000
6000
5500
5000
4500
4500
3500
3500
3000
3000
2500
2500
1200
1200
1200
–
–
–
Whole grease change frequency for ball bearings
Every 2 times
of grease
replenishment
Every 2 times
of grease
replenishment
Every 3 times
of grease
replenishment
Every 5 times
of grease
replenishment
Every 8 times
of grease
replenishment
NU217
85
150
28
45
115
4500
3500
2500
1500
–
Whole grease change frequency for roller bearings
Every 3 times
of grease
replenishment
Every 3 times
of grease
replenishment
Every 5 times
of grease
replenishment
Every 8 times
of grease
replenishment
–
