Standard ROSTA Element size 'A x B'
Lever/Arm Length 'L' [mm]
| Torsion angle | Torque | Max. Force |
|---|---|---|
| 5Ëš | 0.4Nm | 1.0N |
| 10Ëš | 1Nm | 2.5N |
| 15Ëš | 1.6Nm | 4.0N |
| 20Ëš | 6.0Nm | 1.0N |
| 25Ëš | 8.8Nm | 1.0N |
| 30Ëš | 4.8Nm | 12.0N |
Round housing and inner square section made of light alloy profiles, inner square section with four "throughbores", the lever arms can be bolted on and, if necessary, the bores can be tapped, too.
Round housing and inner square section made of light alloy profiles, inner square section with four "throughbores", the lever arms can be bolted on and, if necessary, the bores can be tapped, too.
Housing up to size 45 made out of light alloy profile, size 50 made out of spheroidal graphite cast iron, inner square section made out of light alloy profile with four "throughbores".
Steel housing with inner square section made of light alloy with four small bores. Levers can be mounted on one or on both sides by means of bolts.
Steel housing with inner square section made of light alloy with one big through bore. Levers can be mounted on one or on both sides by means of bolts. Type DR-C with central bore.
Housing made out of steel, inner square section made out of steel tube for mounting "plug-in" lever arms on one or both sides. The inserted part should be at least three times longer than the clearance "C".
The housings of the element sizes DW-A 15 to 38 are made out of light alloy profile and are equipped with lateral fixation flanges, including the required fixation bores for direct mounting on customers machine part. Inner square sections made out of light alloy profile with four small through bores or one central through bore.
The housings of the element sizes DW-S 45 and 50 are made out of spheroidal cast iron, with inner square sections made out of aluminum. The inner square can be used for mounting "plug-in" lever arms on one or both sides.
The housings of the element sizes DW-A 45 to 50 are made out of spheroidal cast iron, with inner square sections made out of light alloy profile. Up from size 60, with housings made out of welded steel construction, with inner steel square sections including four threaded bores on each side for the easy fixation of levers and machine parts.
The housings of the element sizes DW-C 15 to 38 are made out of light alloy profile and are equipped with lateral fixation flanges, including the required fixation bores for direct mounting on customers machine part. Inner square sections made out of light alloy profile with four small through bores or one central through bore.
The housings of the element sizes DW-C 15 to 38 are made out of light alloy profile and are equipped with lateral fixation flanges, including the required fixation bores for direct mounting on customers machine part. Inner square sections made out of light alloy profile with four small through bores or one central through bore.
The housings of the element sizes DW-S 15 to 38 are made out of light alloy profile and are equipped with lateral fixation flanges, including the required fixation bores for direct mounting on customers machine parts.
The housings of the element sizes DW-S 45 and 50 are made out of spheroidal cast iron, with inner square sections made out of steel tube. The inner square can be used for mounting "plug-in" lever arms on one or both sides.
ROSTA modules should be connected on machine parts/structures by means of the standardized clamps and brackets. Relevant welded connections would affect (overheat) the rubber inserts and damage the entire suspension device!
ROSTA modules should be connected on machine parts/structures by means of the standardized clamps and brackets. Relevant welded connections would affect (overheat) the rubber inserts and damage the entire suspension device!
The high-quality rider is made of friction resistant industrial plastic and allows the use on both rider sides. The max. permissible chain speed should not exceed 1.5 m / sec.
The roller is made of high-quality industrial plastic material with two self-lubricating ball bearings 2Z.C3.
The tensioning roller is made of industrial plastic material with two self-lubricating ball bearings 2Z.C3 and is designed for light-duty drives.
The ROSTA sprocket wheel set completes the tensioning element for applications in chain drives. The sprocket wheel runs on a self-lubricating ball bearing 2Z.C3.
ROSTA modules should be connected on machine parts/structures by means of the standardized clamps and brackets. Relevant welded connections would affect (overheat) the rubber inserts and damage the entire suspension device!
