High-quality full cheek crankshaft suitable for performance-enhanced 1-speed Puch E50 engines, Maxi S/N, Supermaxi.
It has 1 mm more stroke (long stroke), which results in more torque, higher compression and increased engine power. The crankshaft impresses with a balanced balance ratio, high speed stability and solid construction with a reinforced 16 mm connecting rod bolt and high-quality silver bearings. Pre-compression is optimized thanks to aluminium inserts in the balancing bores.
The scope of delivery includes the matching needle roller bearing, as well as SKF C4 racing bearings (crankshaft) and SKF C3 racing bearings (spur gear). Also included are high-temperature-resistant FKM/Viton shaft seals.
Important: The use of a 0.5 mm lifting plate and observance of the crushing edge dimension is required for installation. Additional securing of the oil seal on the ignition side is recommended due to the increased crankcase pressure.
Dimensions:
It has 1 mm more stroke (long stroke), which results in more torque, higher compression and increased engine power. The crankshaft impresses with a balanced balance ratio, high speed stability and solid construction with a reinforced 16 mm connecting rod bolt and high-quality silver bearings. Pre-compression is optimized thanks to aluminium inserts in the balancing bores.
The scope of delivery includes the matching needle roller bearing, as well as SKF C4 racing bearings (crankshaft) and SKF C3 racing bearings (spur gear). Also included are high-temperature-resistant FKM/Viton shaft seals.
Important: The use of a 0.5 mm lifting plate and observance of the crushing edge dimension is required for installation. Additional securing of the oil seal on the ignition side is recommended due to the increased crankcase pressure.
Dimensions:
- Crankshaft stroke: 44mm
- Conductor length center-center: 90mm
- Total length of crankpin on clutch side: 74mm
- Total length of crankpin on ignition side: 66mm
- Thread length: 11 mm, 15 mm
- Diameter of crank webs: 69.9mm
- Type of thread: MF10x1 (fine thread)
- Diameter of connecting rod eye: 15mm
- Piston pin diameter (B): 12mm
- Diameter bearing seat (clutch side): 17mm
- Diameter bearing seat (ignition side): 17mm
- Dimension needle bearing 12 / 15 x 14.2mm (axe 12)
- Width of crank webs 34mm
- Length 1st heel 9mm
- Length 2nd shoulder 14.5mm
- Diameter 1st shoulder (clutch side): 22mm
- Diameter 2nd heel (clutch side): 17mm
- Diameter 3rd shoulder (clutch side): 15mm
- Length of shoulder (ignition side): 26.3mm
