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High-end full cheek crankshaft suitable for manual Sachs 50/2 (502), 50/3 (not to be confused with 503) mopeds.
High-quality and precisely fitting full cheek crankshaft weighing 1038 grams, which has proven itself in various load tests.
This crankshaft was designed for use in engines with a large power increase.
All balancing holes in the cheeks were sealed with aluminum inserts for maximum pre-compression.
The solid connecting rod is fitted with a more stable 16 mm connecting rod pin, which is hollow on the inside for better balancing.
In addition, the connecting rod bearings are silver bearings, which have excellent emergency running properties.
Dimension:
- Total length of clutch-side cheek pin: 40.7 mm
- Total length of clutch-side cheek pin: 63.4 mm
- Ø 1st shoulder (clutch-side): 15 mm
- Ø 2nd shoulder (clutch side): 12 mm
- Thread on coupling side: MF10x1 mm
- Ø Heel (coupling side): 15 mm
- Thread on clutch side: MF10x1 mm
- Ø Crank webs: 85 mm
- Width of crank webs: 30.1 mm
- Ø Connecting rod eye top: 15 mm
- Ø Connecting rod pin bottom: 16 mm
- Length of connecting rod: 85 mm
- Stroke: 42 mm
- Weight (incl. connecting rod): 1038 grams
- . Connecting rod): 1038 grams
The needle bearing (12/15 x14.2 mm) is included in the scope of delivery.
The matching bearings and oil seals can be found under accessories.
Installation tip:The transition between the crank webs and the crankpin is provided with a slight radius for reinforcement. To ensure clean spacing, a Ø 16 x 1 mm spacer washer should be used on both the left and right-hand sides; these are placed neatly over the chamfer and are therefore perfectly centered. The other spacers can be used normally with Ø 15 mm.
&Revised version of the previously offered crankshaft with additional slotted connecting rod foot for better lubrication, improved balancing ratio and thus better speed stability.
Made by the quality brand swiing – swiss ingenious.
Details
| Manufacturer | swiing |
| Weight | 1038 g |
| Cheek type | Full cheeks |
| Crankshaft stroke | 42 mm |
| Connecting rod length center-center | 85 mm |
| Total length of crankpin on clutch side | 40.7 mm |
| Total length crankpin ignition side | 63.4 mm |
| Ø crank webs | 85 mm |
| Ø piston pin (B) | 12 mm |
| Ø Connecting rod eye | 15 mm |
| Thread type | MF10x1 (fine pitch thread) |
| Ø Bearing seat (clutch side) | 15 mm |
| Ø Bearing seat (ignition side) | 15 mm |
| Area of application | High End |
| Dimension needle bearing | 12 / 15 x 14.2 mm (axe 12) |
| Wide crank webs | 30.1 mm |
Suitable for the following models
| Sachs | 50 (Fahrtwind, 1.25 / 1.5 PS, DE) 50/2 - L CH (0.8 PS), ML CH (0.8 PS), MB (2.6 PS), MLB (2.6 PS) 50/3 |
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