TOYODenki EDM series, Instruction Manual

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3.2 Grease replenish type bearing
For the motors of EDM43 or over, kind, quantity and interval of replenishing of grease are indicated
on the name plate.
(1) Replenish the grease during operation at every replenishment interval (operation time)
indicated on the name plate. In case that the net operation time is short due to short-time or
repetitive operation, grease should be replenished in such a way that the elapsed time including
stoppage will not become twice or more of the interval indicated on the name plate, or at least
every 6 months - one year.
(2) When grease is replenished, be sure to rotate (300 r/min or more) the motor, clean the grease
nipple, and replenish necessary quantity by grease gun through the nipple. At every time of
grease replenishment, scrape out old grease from grease drain port.
(3) When the grease is replenished, bearing sound will become temporarily louder a little or the
bearing temperature will rise 5°C
～
10°C higher than the normal one, because of excess grease,
but it will return to normal one in several hours to 1 day.
(4) Table 4 shows approximate values of grease replenishment quantity and replenishing timing.
Table 4 Grease replenishment quantity
Type of
motor
Load side bearing No. Replenishment
quantity
Replenishing timing (cumulative
operating time) (Hr) at specified speed
Non-load side
bearing No
(g) 1800 r/min 1500 r/min 1200 r/min
EDM2761V
EDM2771V NU313 33 3400 4200 5400
6312ZZ -- -- -- --
EDM2772V
EDM2781V NU316 47 3000 3700 4800
6312ZZ -- -- -- --
EDM3141V
NU316 47 3000 3700 4800
6315ZZ -- -- -- --
EDM3151V
EDM3161V
EDM3541V NU320 72 2600 3200 4200
6315ZZ -- -- -- --
EDM3551V
EDM3561V
EDM43**V
NU324 102 2300 2900 3700
6318 24 2300 2900 3700
EDM54**V
6324 102 4700 5800 7600
6318 48 4700 5800 7600
EDM68**V
6326 116 4400 5500 7200
6324 96 4400 5500 7200
Table 5
At the forwarding from our factory, bearings are filled
with Multemp SRL (of Kyodo Yushi Co.) unless otherwise
specified, (or grease of the brand specified by user). For
replenishment of grease, we recommend this Multemp
SRL. If grease of this brand is not obtainable, the
equivalent greases shown in the table below can be used. Maker name Brand of grease
Kyodo Yushi Multemp SRL
Nippon Oil Multi Knock Wide 2
MOBIL Mobil Temp SHC100
SHELL Variant M2
ESSO Templex N2
3.3 Use of grease of different type for the grease replenish type bearing
(1) Avoid mixed use of different brands of grease. Depending on the combination, properties of
grease may greatly change.
(2) In case that the user is compelled to use a grease of different brand from the grease of the time
of delivery, the following method should be taken.
1) Open the grease drain port and inject new grease while scraping out the old grease, during
operation or by manual rotation of the shaft.
2) Repeat this work until the new grease comes out of the grease drain port.
(3) When the grease is injected, bearing temperature may rise. In such a case, stop the injection
until lowering of bearing temperature. After that, repeat the injection of the grease.