Flywheel 140mm

This steel pulley has an outer diameter of 58 mm. The belt pulley was made in the lost wax process and thus has a very clean and fine surface. The belt pulley is designed for use on model-building combustion engines, Stirling engines, flame guns or steam engines. On these model machines it can be used either as a belt pulley or as a flywheel. It can also be used as a wheel for a model caravan. The belt pulley is supplied as raw material. Due to the clean castings, processing of the outer surfaces is not absolutely necessary. Dimensions of the 58mm pulley: Raw diameter: 58mm Finish diameter: 57mm Width on the hoop: 20mm Width at the waist: 20mm Diameter of collar: 15mm Weight: 170g Material: Cast steel (no gray cast iron)

This tube is a hydraulic cylinder tube. The inside of the tube is very dimensionally stable and wear-resistant. The cylinder tube is suitable as a cylinder sleeve for an internal combustion engine or flame eater. We also use this cylinder tube in our models. We use it for the combustion engine Karl, Stirling engine "Big Laura" and the Flame Eater Jarne. Due to its high wear resistance, the tube has proven itself as a cylinder sleeve for us. Dimensions of hydraulic cylinder tube 25mm: Outer diameter: 35mm Inner diameter: 25mm Length: 83mm Material: St52 Suitable Piston ringsfor this cylinder tube can be found here Dimensions of hydraulic cylinder tube 30mm: Outer diameter: 40mm Inner diameter: 30mm Length: 86mm Material: St52 Dimensions of hydraulic cylinder tube 40mm: Outer diameter: 50mm Inner diameter: 40mm Length: 117mm Material: St52 Dimensions of hydraulic cylinder tube 50mm: Outer diameter: 60mm Inner diameter: 50mm Length: 142mm Material: St52

You will find in our shop ball bearings made of steel in different sizes. All ball bearings are offered in the ZZ variant. The double-sided sheet metal disc with gap seal keeps dirt out and guarantees a good smooth running. The ball bearings are very well suited for technical modeling. We use the miniature ball bearings for flame eaters, steam engines and Stirling engines as they are particularly easy to move. Most of the offered ball bearings have a small cross-section to keep the installation dimension as low as possible.   The following ball bearings are available:   Inner diameter   outer diameter width ball bearings 63 ZZ 3mm 6mm 2,5mm ball bearings 106 ZZ 6mm 10mm 3mm ball bearings 688 ZZ 8mm 16mm 5mm ball bearings 6700 ZZ 10mm 15mm 4mm ball bearings 61800 ZZ 10mm 19mm 5mm        

We have silver braided bars with a silver content of 55% (L-Ag55) with a length of 500mm. Because of the relatively low melting point of this silver braze, the model builder in the field of technical model building is almost exclusively concerned. The working temperature of this hard solder is 630 ° C. The silver as an alloying component in the solder does not only reduce the working temperature, but also improves the flow properties. Furthermore, silver has the positive property of combining well with other metals. For brazing brass and steel, silver solder flux is essential. The low working temperature of the silver solder bars allows the thermal load to be as low as possible for the processed material. It is important not to heat the workpieces too much, especially in the case of brass. In combination with our silver solder flux you achieve with these silver solder always optimal results. The silver braided bars can be purchased from us in the shop in 2 different diameters. For fine soldering as it often happens in technical model construction we recommend the 1mm rods. The 1mm silver braided bars are easy to carry with the hand and can be easily melted with small burners. For larger parts we prefer the 1.5 mm silver solder bars. With these rods you get faster material to the soldering point if needed. What can be brazed?The following materials can be combined with silver solder: brass, copper, gunmetal, gray cast iron, rusting steels and stainless steel. A combination of the materials among each other is easily possible with this silver braze solder. If the material is not known to you, it is always recommended to solder a piece to the sample beforehand. This allows you to determine whether the materials can be combined with the silver braze.Instructions Brazing with silver solder If you have never worked on silver solder and you are not sure how the exact solder brazing procedure is with silver solder, we can help you before you buy the silver solder. We have created a guide for you in our Bengs Modellbaumagazin on the topic "Brazing with silver solder". Here you can find out what you need and have to consider if you want to solder 2 components with silver solder. Tip: Flux residues and discoloration of the material can be optimally eliminated with our satin brushes or abrasive fleece!Characteristics of the silver solder bars500 mm long. 1mm or 1.5mm diameter Silver solder bars L-Ag55 (55% silver) Working temperature 630 ° C Bengs Modellbau has used this silver solder bars for years.