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Tensioners

ROSTA CHAIN TENSIONERS

Bearings International have been distributing the Range of Rosta Anti Vibration and Tensioners for the past 20 years.

The Swiss designed products are the world leaders, with patented rubber insert material, having the best memory retention of all vibration products produced world wide.

The quality of the Rosta Range of products is trusted by extra heavy duty applications in the Mining and Metals Industries.

These tensioners can be supplied with either a sprocket or a roller for chain and V-belt tensioning.
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ROSTA OSCILLATING MOUNTINGS

Free oscillating systems are either activated by using exciters, unbalanced motors or unbalanced shafts.

The oscillation amplitude, type of vibration and the direction of vibration of the screen are determined by the dimensioning and arrangement of these actuators.

The excitation force, the angle of inclination of the excitation, the inclination of the screen-box and the position of the centre of Gravity determine the resulting oscillation amplitude of the device. The oscillation amplitude, and thereby the conveying speed of the machine, can be optimized by augmenting these oscillating mountings.
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ROSTA MOTOR BASE MOUNTS

Mounting an Electric Motor onto a pre manufactured mounting base from ROSTA, offer the end user a number of benefits:

  • Reduced short-term slippage by the start-up of large inertias excessive tension on belt-carcass is reduced
  • Quick and easy to change the belts
  • No complex time consuming readjustments necessary maintenance-free tensioning system no need of periodical compensation of belt elongation!
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MURTFELD SPANBOX TENSIONERS

Chains and belts are important wearing parts in many plants and machines. Since they are constantly moving, the stressesto which they are  subjected to are  very high. Belts require Pre-tensioning  periodically. Chain links elongate and run increasingly less smoothly.

Murtfeldt tensioning systems keep chains and belts reliably tensioned, thus increasing their lifetime. They are tried and-tested following decades of use around the world.

Our experience with these systems enables us to provide you with an optimum advice and to always offer the best possible solution  for your needs.
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Address:
Lancaster Commercial Park
12 Merlin Rose & Lancaster Ivy Drives
Parkhaven
Boksburg
1459
Phone:
+27 11 899 0000

Fax:
+27 11 899 6586

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