Rockwell Automation 1329R Std. Industrial AC Induction Motors - Manual (Page 8)

8 Standard Industrial AC Induction Motors
Figure 1
Mounting of 6 & 8 Hole Motor Frames
Drive
The pulley, sprocket, or gear used in the drive should be located on
the shaft as close to the shaft shoulder as possible. Heat to install.
Driving a unit on the shaft will damage the bearings.
Belt Drive – Align the pulleys so that the belt will run true. Tighten
the belt just enough to prevent slippage, any tighter will cause
premature bearing failure. If possible, the lower side of the belt
should be the driving side.
Chain Drive – Mount the sprocket on the shaft as close to the bracket
as possible. Align the sprockets so that the chain will run true. Avoid
excessive chain tension.
Gear Drive and Direct Connection – Accurate alignment is essential.
Secure the motor and driven unit rigidly to the base.
Rotating Parts
Some Satisfactory Methods Of Guarding Are:
• Covering the machine and associated rotating parts with
structural or decorative parts of the driven equipment.
• Providing covers for the rotating parts. Covers should be
sufficiently rigid to maintain adequate guarding in normal
service.
!
ATTENTION: Rotating parts such as couplings, pulleys,
external fans and unused shaft extensions must be
permanently guarded against accidental contact with hands
or clothing. This is particularly important where the parts
have surface irregularities such as keys, keyways or set
screws. Failure to observe this precaution could result in
personal injury.
Drive
Shaft End
View from above
Not present on "6-hole frame" and not
used on "8-hole frame" (allows F-1 to
F-2 conversion on 8-hole frames)
Always use these holes which are closer to
shaft. 112S, 132S, 160M, 180M, 200M,
225S, 250S, 280S (IEC) Use these holes for short
frame designations 182, 213,
254, 284, 324, 364, 404, 444
(NEMA)
Use these holes for long frame designations 184,
215, 256, 286, 326, 365, 405, 445 (NEMA)
(IEC) 112M, 132M, 160L, 200L, 225M, 250M, 280M