We removed, lubricated and then reassembled their seals--a job that takes about four hours per sheave
, according to Caldwell.
Many paper machines use these sheaves
in rope threading systems to draw paper through the machine during start up or after paper breaks.
came along to show Aquila the company's pulley alignment laser, the mechanic averaged an additional two hours on every belt replacement merely aligning driving and driven sheaves
by using a simple straight edge.
The rope leading from the hoist in the headframe runs over a diverter sheave
in the drive station and is led over two double-groove traction sheaves
and a further diverter sheave
to the second skip hoist (See Figure 5).
One of the essential tasks for air balancers in the HVAC industry is adjusting sheave
If it's time to replace a drive's belts, then it's time to evaluate whether changing to different sizes or types of belts and sheaves
will pay off in longer life and better performance.
161591-2 boom point sheave
assly of 182 m marion shovel sl.
Broken belts can be caused by any of these four conditions: an underdesigned drive, a severe shock load, rolling or prying a belt onto a sheave
, or an object falling into the drive.
Start with proper inspection of the sheave
grooves for wear.
Fabrication & supply of sheave
pin for ladder pulley as per Drg.
RPM = Revolutions/min of sprocket or sheave
K = Refer to drive tension factors 126,000 = A constant for conversion of horsepower, RPM, and sprocket or sheave
diameter to radial pounds of force
Tenders are invited for Supply of Drag chain assy 32100 q11 d 2 no 2 hoist chain top 32100 q10 d1 no 2 hoist chain bottom 32100 q10 d 3 no 2 bearing 25z 549 d3 no 2 bearing 25z 259 d 25 no 2 bearing 25z 259 d 189 no 2 roller fair lead 3213 p 15 no 2 sheave
207 p59 no 2 sheave
pin 219 t 203 no 2 sheave