Owner manual

DC Motors 17
Table H
Service Condition
1
Motors must be specially designed for operation in ambient outside the range of –30 to 40 degrees C
(–22 to 104 degrees F). Special grease is required.
2
"Extreme" service conditions are rare in actual practice. Corresponding lubrication cycles should therefore
be applied with caution. It is also advisable to check with Allen-Bradley for related special instructions.
Table I
Relubrication Periods – Frames C210ATZ - C440ATZ
1
Maximum speed occupying more than 30% of operating time.
2
For Tandem drives increase frequency of lubrication by multiplying values by 0.8.
Frames C210ATZ - C440ATZ
These motors are designed to route new grease directly into the
bearing. The relubrication periods shown in
Table I are offered as a
guide for varying service conditions, speeds, bearing types and
operating hours.
Important: Certain special motors may have a lubrication instruction
plate permanently attached. These specific lubricating
instruction must be followed.
Lubrication Procedure
1. Relubrication with the shaft stationary and a warm motor is
recommended.
2. Locate the grease inlet at the top of the bearing hub, clean the
area and replace the 1/8 inch pipe plug with a grease fitting (if the
motor is not equipped with a grease fitting).
Service
Condition Ambient Temperature Bearing Load Atmosphere
Operating
Hours/Day
Standard –18 to 40 degrees C
(0 to 104 degrees F)
Steady Clean 8
Severe –30 to 50 degrees C
(–22 to 122 degrees F)
1
Medium Shock, Vibration
(less than 0.2 in/sec.)
Medium Dirt,
Abrasives,
Corrosion
8 to 24
Extreme
2
–54 to 65 degrees C
(–65 to 149 degrees F)
1
Heavy Shock, Vibration
(more than 0.44 in/sec)
Heavy Dirt,
Abrasives,
Corrosion
8 to 24
Maximum Normal
Operating Speed (RPM)
1
Frame
Relubrication Interval (Months)
2
Standard
Service
Severe
Service
Extreme
Service
3450 and higher All 9 4 1
2400 - 3449 C210ATZ - C250ATZ 24 9 3
C280ATZ - C400ATZ 9 3 1
1700 - 2399 C210ATZ - C320ATZ 36 12 3
C360ATZ - C400ATZ 18 6 2
UC360ATZ - UC400ATZ 9 3 1
800 - 1699 C210ATZ - C320ATZ 36 24 8
C360ATZ - C400ATZ 36 12 3
UC360ATZ - UC400ATZ 18 6 1
500 - 799 C210ATZ - C320ATZ 48 36 12
C360ATZ - C400ATZ 36 24 8
UC360ATZ - UC400ATZ 18 12 4
499 and lower C210ATZ - C440ATZ 48 36 12
UC360ATZ - UC440ATZ 24 18 6