Rosta SE-B
Boomerang shape tensioner

• Boomerang shape tensioner
• For long belt of chain
• Temperature -40°C - +80°C

Rosta SE-B maintenance free Boomerang shape tensioner device for chain drive and belt drive, compensates the slack in extremely long chain drives. The Boomerang with its bended double arm, equipped with two sprocket wheels, offers a triple compensation of the slack.

The Rosta SE-B tensioner dampens the noise level and compensates lengthening due to age and prevents slipping of the belt. The Rosta tensiong device automatically corrects this extension and in such prevents the sagging and beating of the chain and excessive slippage of the belt. The SE-B tensioner device offers a quiet and stable chain run and reduces wear on rollers and bearings.

• Working temperature range of -40°C up to +80°C.
  In the standard catalog tables are available for selection of the type of tensioner with sprocket sets and other accessories that can be applied with different types of chain, according to DIN8187.

Tension force Rosta SE-B tensioner

The tension force of the Rosta SE-B boomerang shape chain tensioner and belt tensioner is stageless adjustable to an angle of 30°.

• Tensioner SE-B 18   adjustable up to 435 N
• Tensioner SE-B 27   adjustable up to 1000 N

Accessories Rosta SE-B tensioner

The Rosta SE-B Boomerang belt tensioner and chain tensioner is easy to install with a wide range of accessories.

• Chain wheels with ball bearing
• Chain rider set (max. permissible speed is 1.5 m/s)
• Pretensioning brackets, quick pretensioning system
• Tensioning rollers (plastics and steel version) with ball bearing
• Belt tensioner for wide belts, max. 250 mm

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