Rosta SE
Chain tensioner and belt tensioner

• Standard chain and belt tensioner
• Temperature -40°C - +80°C
• Adjustable up to 5250 N

Rosta SE maintenance free tensioner devices for chain drive and belt drive. The SE standard tensioning systems prevent necessity to compensation of lengthening due to age and prevents slipping of the belt. Also dampens the noise level. Through aging extension of the chain and belt occurs. The SE tensioning device automatically corrects this extension and in such prevents the sagging and beating of the chain and excessive slippage of the belt. The tensioner devices offer a quiet chain run and reduces wear on rollers and bearings.

• Various versions with a working temperature range up to 120°C (standard tensioners 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 tensioner

The tension force is stageless adjustable to an angle of 30°.

• Tensioner SE15   adjustable up to 165 N
• Tensioner SE18   adjustable up to 435 N
• Tensioner SE27   adjustable up to 1000 N
• Tensioner SE38   adjustable up to 1875 N
• Tensioner SE45   adjustable up to 3250 N
• Tensioner SE50   adjustable up to 5250 N

Accessories Rosta SE tensioner

The Rosta chain tensioner and belt 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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• Catalog
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• Catalog

• Catalog

•      CAD Downloads

Mini buggy with Rosta tensioner device

Wheel suspension in a mini buggy with maintenance free ROSTA rubber suspension units.

Front wheel suspension: Rosta SE 18 tensioner.

Rear wheel suspension: Rosta DR-S 27x40 rubber suspension units.

Locomotive with Rosta belt tensioner

The belt drive transmission of the miniature locomotive is equipped with a Rosta SE 27 belt tensioner. The customer required an installation as small as possible, and yet the different forces should be transmitted at different speeds with a constant belt tension. A Rosta SE belt tensioner offered the right solution, meeting all the requirements. The belt tensioner prevents clapping of belt and realizes an efficient and reduced noise power transmission.

A classic application of the Rosta belt tensioner, yet in a special, not everyday surrounding.

Cooling system trucks with Rosta

Automatic belt tensioning systems with Rosta rubber suspension elements for a longer service life of the belt in a truck cooling system.

Coach compressor with Rosta belt tensioner

Automatic belt tensioning system in a touringcar compressor, with ROSTA rubber suspension elements.