ROSTA SE 18 Schweizer automatischer elastischer Spanner

Bestell-Nr.: 06 011 003 – Standard SE series maintenance-free elastic tensioning unit from ROSTA, Schweiz. Designed for constant-tension automatic tensioning, vibration damping and elongation compensation on chain, timing belt and V-belt drives. Rubber elastic core, permanently lubrication-free.

SE 18 ：2026111115180210

SE 11: 2026111115190180

✅ Grundlegende Spezifikationen

Gewicht: 0.6 kg

Central fixing thread: M10

Rubber compound: Rubmix 10 (natural rubber)

Betriebstemperatur: -40 ℃ ~ +80 ℃

Maximum pre-tension angle: ±30° from neutral position

Travel: 50 mm

Spannung (J1 standard mounting position)

10° preload: 75 N

20° preload: 185 N

30° preload: 350 N

Tightening torque MA: 49 N·m (M10, Klasse 8.8)

📌 SE18 Variant Models (identische Grundfläche)

Modell	Bestell-Nr.	Merkmale	Rubmix / Temperaturbereich
SE 18-G	06 013 203	Oil-resistant version, yellow dot marking	Rubmix20, -30~+90℃
SE 18-W	06 015 003	High-temperature version, red dot marking; Spannung 40% lower than standard	Rubmix40, up to +120℃
SE 18-R	06 011 703	Reinforced swing arm, for engine / compressor applications	Rubmix10, -40~+80℃
SE-I 18	06 071 112	Stainless steel version (Essen / pharmaceutical service)	Rubmix10, -40~+80℃, Gewicht 0.7 kg
SE-B 18	06 021 003	Boomerang dual-arm design, triple compensation for long drive lines	Rubmix10, Gewicht 0.8 kg
SE-F 18	06 061 003	Front flange mounting version, blind-hole frame installation	Rubmix10, Gewicht 0.7 kg

🛠️ Typische Anwendungen

Automatic tensioning for chain drives, V-belts, timing belts and conveyor belts

Elastic loading for belt scrapers / cleaners

Fördern, Verpackung, Holzbearbeitung, Drucken, agricultural machinery and fan drives

Absorb shocks, reduce polygon effect, lower noise and prevent slip; no manual periodic retensioning required

🧩 Compatible Accessories

VS 15/18: Preload limit clamp (0–15°), for precise pre-tension setting

WS 18: Montagehalterung

N-series sprocket assemblies, P chain pressure blocks, R nylon tensioning rollers

SS safety sleeve (for slippery / rough mounting surfaces)

ROSTA SE 18 (Bestell-Nr.: 06 011 003) Automatic Tensioning Element

Ketten Fuchs compatible part. Standard maintenance-free rubber torsion spring tensioner from ROSTA Switzerland. Provides automatic elongation compensation and vibration damping, no lubrication required.

Grundlegende Informationen

Modell: SE 18

OEM Order No.: 06 011 003

Rubber compound: Rubmix 10 (natural rubber)

Betriebstemperatur: -40 ℃ ~ +80 ℃

Material: Steel housing and inner core, blue painted finish

Gewicht: 0.6 kg

Funktionsprinzip: Rubber torsion elastic unit, delivers constant tension torque with damping; no conventional springs or wear joints

Force & Travel Specifications

J1 mounting position (standard arm length 100 mm): Fmax = 350 N, max travel s = 50 mm

J2 mounting position (short arm 80 mm): Fmax = 440 N, max travel s = 40 mm

Gesamtabmessungen (mm)

Parameter	Wert
D	58
E	79 (+1.5/-0.5)
G	7
H	M10 (central mounting thread)
J1	100
J2	80
K	30
L	115
M	30
N	35
O	10.5
P	8.5
T	10.5
U	25.3

SE18 Body Variants

SE 18-G (06 013 203): Oil-resistant Rubmix20, galvanized components, -30~+90℃

SE 18-W (06 015 003): Heat-resistant Rubmix40, -35~+120℃, Spannung 40% lower than standard SE

SE-F 18: Front flange mounting version

SE-I 18: Stainless steel version

SE-R 18: Reinforced arm version

Installationsrichtlinien (Chain Drives Recommended)

Mount on the slack side of the chain, close to the small sprocket: increases wrap angle, suppresses polygon effect and prevents jumping teeth
Position the swing arm roughly parallel to the chain; recommended preload angle ≤20°, preload force ≤50% of rated value
Installationsmethode: Central M10 bolt friction locking. To set preload: loosen the flange, rotate the housing with a wrench to set preload, then retighten the central bolt
Mounting surface must be flat and rigid; optional pin anti-rotation in flange slot for dusty / raue Umgebungen

Typische Anwendungen

Automatic constant tensioning for roller chains, timing belts and flat belts

Förderer, Verpackungsmaschinen, Holzbearbeitung, glass equipment, automatisierte Produktionslinien

Scraper compression, idler roller floating support and low-stroke vibration damping

Fehlerbehebung

Rubber cracking / Altern: Übertemperatur, oil attack or long-term operation at maximum deflection; prefer SE-G oil-resistant variant
Tension decay: Rubber fatigue. The ROSTA rubber insert cannot be replaced separately; replace the complete unit
Lärm / chain jumping: Mounted on the tight side, preload angle exceeded, or large sprocket misalignment

Ersatzhinweise

Inländisches Äquivalent: Multiple domestic rubber torsion tensioners marked SE18. Verify J1/J2 force rating, central M10 thread and overall dimensions. Rubber compound determines temperature and oil resistance.

Selection Table for ROSTA SE 18 (06 011 003) Compatible N-Type Tension Sprockets

N = ROSTA original bearing-equipped idler sprockets, standard double-side shielded deep groove ball bearing 6200ZZ, langweilig 10 mm to fit SE18 arm pin hole. Single-row S / double-row D, for ANSI / ISO roller chains

Notiz: SE18 maximum tension 350 N; 15 teeth preferred. Minimum meshing teeth ≥3, ≥4 teeth recommended. Install on chain slack side

Originalmodell	Bestell-Nr.	ANSI Chain	ISO Code	Row	Teeth	Pitch Diameter(mm)	Tooth Width B(mm)
N3/8″–10 S	06 500 001	35 (3/8″)	06B	Single S	10	40.3	5.2
N3/8″–17 S	06 500 001-17T	35	06B	Single S	17	67.8	5.2
N1/2″–12 S	06 500 002	40 (1/2″)	08B	Single S	12	61.1	7.2
N1/2″–12 D	06 500 002D	40 (1/2″)	08B	Double D	12	61.1	7.2
N5/8″–12 S	06 500 003	50 (5/8″)	10B	Single S	12	76.4	9.1
N5/8″–12 D	06 500 003D	50 (5/8″)	10B	Double D	12	76.4	9.1
N3/4″–12 S	06 500 004	60 (3/4″)	12B	Single S	12	91.7	11.1
N3/4″–12 D	06 500 004D	60 (3/4″)	12B	Double D	12	91.7	11.1

Smooth Compression Rollers (RL series, no tooth engagement, for pressing outer chain plate)

Modell	Bestell-Nr.	Compatible SE	Roller OD	Breite	Maximale Geschwindigkeit
RL 15/18	06 580 902	SE15 / SE18	45 mm	40 mm	6000 U/min

Selection Constraints (Kritisch)

Upper chain limit: SE18 not recommended for chain larger than 60 (12B) einreihig; 80 / 16B chain requires upgrade to SE27
Preload angle: Max recommended deflection ≤20°, preload force ≤50% rating (≤175 N) to prevent premature rubber ageing
Mounting pin: SE18 arm pin diameter d=10 mm; sprocket bore 10 mm with bearing, fit directly to arm hole and lock with M10 nut
Velocity limit: N sprocket max linear velocity ≤2.5 m/s; select SE27 above this speed
Material: Standard N sprocket C45 hardened steel; stainless steel sprockets available for food / wet service; RL rollers are black wear-resistant polyurethane

Domestic Equivalent Matching Requirements for Idler Sprockets

Langweilig: 10 mm

Lager: 6200ZZ

Tooth profile: ISO 8187 (AUS), avoid non-standard American tooth forms which cause jumping teeth

Gesamtbreite: Must not interfere with SE18 tension arm side plates

Tightening Torque for SE18 Central Bolt

M10 Class 8.8: 49 Nm (tensioner body fixing bolt)

Kurzanleitung zur Auswahl

06B / 35 → N3/8-10S

08B / 40 → N1/2-12S (SE18 preferred)

10B / 50 → N5/8-12S

12B / 60 → N3/4-12S (upper limit, careful application)

No meshing required, press chain plate → RL15/18 smooth roller

ROSTA SE Series Automatic Tensioning Elements Full Model List (Standard Units + Variants)

Series description: Rubber torsion spring maintenance-free automatic tensioners for chain and belt drives. ROSTA Switzerland, SE = main standard series. Suffixes indicate application variants; same numeric size shares identical mounting envelope, only rubber compound and surface treatment differ.

Standard Base Models (SE Standard, Rubmix10, -40~+80℃, blue paint)

Modell	OEM Order No.	Central Thread	Fmax @ J1 Arm	Gewicht
SE 11	06 011 001	M6	80 N	0.2 kg
SE 15	06 011 002	M8	135 N	0.4 kg
SE 18	06 011 003	M10	350 N	0.6 kg
SE 27	06 011 004	M12	810 N	1.7 kg
SE 38	06 011 005	M16	1500 N	3.6 kg
SE 45	06 011 006	M16	2600 N	5.5 kg
SE 50	06 011 007	M20	4200 N	8.0 kg

Suffixdefinition

SE-G: Oil-resistant grade, Rubmix20, verzinkt, yellow dot mark; -30~+90℃ for oily, gearbox and outdoor environments

SE-W: High-temperature grade, Rubmix40, red dot mark; -35~+120℃; Spannung 40% lower than standard

SE-F: Vordere Flanschmontage, blind flange, cannot be bolted from rear; for space-restricted cabinet installation

SE-I: Stainless steel INOX (GX5CrNi19-10), Essen, pharma and corrosive humid service

SE-R: Reinforced swing arm, white ring mark; engines, Kompressoren, shock-load duty

SE-B (Boomerang): Dual-arm boomerang style, bi-directional tensioning for special belt circuits

SE-FE: Reinforced flange version, engine dedicated fixing design

Variants by Size

SE 11 Variants

SE 11 (Standard)｜SE 11-G (Ölbeständig)

No standard factory SE11-W / SE11-I / SE11-R

SE 15 Variants

SE 15｜SE 15-G｜SE 15-W｜SE-F 15｜SE-I 15｜SE-R 15

SE 18 Variants (Ihr Zielmodell)

SE 18 (06 011 003)｜SE 18-G (06 013 203)｜SE 18-W (06 015 003)｜SE-F 18｜SE-I 18｜SE-R 18 (06 011 703)

SE 27 Variants

SE 27｜SE 27-G｜SE 27-W｜SE-F 27｜SE-I 27｜SE-R 27

SE 38 Variants

SE 38｜SE 38-G｜SE 38-W｜SE-F 38｜SE-I 38｜SE-R 38

SE 45 Variants

SE 45｜SE 45-G｜SE 45-W｜SE-F 45｜SE-I 45｜SE-R 45

SE 50 Variants

SE 50｜SE 50-G｜SE 50-W｜SE-F 50｜SE-I 50

Kompatibles Zubehör (Not SE body units)
N-series tension idler sprockets (N3/8, N1/2, N5/8, N3/4, N1″, single S / double D)
RL-series smooth polyurethane compression rollers (RL11, RL15/18, RL27, RL38)
SES / VS / SV: Preload adjustment tools
Chain slide pads, guide blocks, angle brackets
Quick Selection Notes
Same numeric size (z.B. SE18 / SE18-G / SE18-W): identical outline and mounting hole geometry, only rubber compound and coating differ; direkt austauschbar
SE-W high-temperature version has 40% reduced tension; select one size up during design
SE-I stainless steel: Höhere Kosten, same force rating as standard, Essen & pharma use
SE-R reinforced arm: Für Stoßbelastungen; not recommended for normal chain conveyors due to premium cost
SE-F flange version: Different mounting interface; cannot directly replace center-thread SE standard units
Other ROSTA Elastic Units (Not SE series, easy to confuse)

DR, AB, AD-P, AS-P, MB, ST, DK series. These are swing supports, vibration isolators and motor mounts, not automatic chain / belt tensioners. Do not mix up with SE series.