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The new roller design developed by NIKOM-66 is of stronger and more rigid construction that minimises body deflection and reduces the load on its supports. The diagrams clearly demonstrate its improved moment of deflection, which is half the value typical for conventional roller designs. The negative moments of deflection transfer additional load onto the supports, which reduces the load on the bearings incorporated in the NIKOM-66 design.

1.Traditional Roller Design




1. The typical static deflection of the spindle in traditional roller designs increases bearing misalignment and effectively reduces the bearing play to zero, and this play is already minimised during assembly due to the misalignment of the planes in which the bearing housings are positioned in the roller.
2. The rotation creates vacuum inside the roller, which draws dirt and other particulate matter in the bearing thus reducing its service life.
3. During extended shutdown periods the non-rotating spindle and its protective caps become damp and dusty, covered with dirty slime depending on the operating environs. When the roller resumes its normal operation the dirty particles gradually work their way in through the labyrinth seals and ultimately reach the bearing balls.
4. The temperature inside the roller rises during operation, which affects the normal operation of the bearings.
5. The bearing housing is a through design which requires protection of both ends.
6. All this substantially reduces the working life of the roller, which even after repair is further reduced by the increased misalignment of the bearing housing.

 

2. NIKOM-66 Roller design

1. Eliminates bearing loads due to:

ē  design faults;

ē  assembly faults.
2. The bearing housing and the bearings are fitted onto the spindle independent of the inside of the roller shell and still the manufacturer's tolerance and play requirements are achieved.
3. The rotating motion of the spindle forces all the accumulated solid and liquid particles away (centrifugal action) thus preventing their incursion into the bearings.
4. During extended shutdown periods the dust, water and mud particles do not run down the bearing housing flange to the spindle; instead, they are trapped in the void inside the roller shell and eventually they are thrown out when the roller starts spinning again.
5. The NIKOM-66 roller design allows cooling of the bearings in the bearing housings, which ensures their normal operation. The roller acts as a cooling fan.
6. The bearing housing is not a through design, which guarantees maximum cleanness inside. This roller design mounted in an idler set allows central lubrication. In the event of locked bearings on one side, the roller changes its geometry along the spindle and reduces the friction with the conveyor belt.
7. Easy maintenance, no technical deflections and misalignments.




  3. New Rubber Roller Design by NIKOM-66
 

1. Exceptionally reliable performance.

2. Robust and capable of taking dynamic impact loads.

3. Minimal belt snapping risk.

4. Ease of maintenance and high utilization.

The description of the NIKOM-66 plain roller design is applicable to the NIKOM-66 rubber roller design.

 



  4. A New Generation of NIKOM-66 Tension Pulleys
 


1. The belt-conveyor start-up no longer requires turning of the entire pulley, which is typical for the traditional pulley designs. Instead, the peripheral rollers rotate around their axes and against the belt and gradually entrain the pulley, which starts to roll. This means less power draw on start-up and no belt-pulley skidding. When the belt is not loaded, the outer race of the bearings in the traditional pulley design usually slips thus damaging the roller surfaces, which substantially reduces the service life of the pulley.

 

The NIKOM-66 pulley design successfully addresses this issue as described above.

 

"NIKOM-66" also offer::

 

 

5.Roller support for three parted stations

 

–roduct - 01

 

–rÓduct - 02

 

–rÓduct - 03

15/30/45

 

 

 

     

 

 

     

 
                                                                                          © 2007 Nikom66