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        

Plaast or even polymorph is a polymer plastic (polycaprolactone) with remarkable properties that can be used for model making great. The plastic is already soft and easily deformable at 60 ° C. Place the granules in max. 65 ° C warm water. As soon as the granulate has become completely transparent, it can be taken out of the water and deformed by hand. After cooling completely, the plastic is hard but not brittle. It can be drilled or cut with a sharp knife. Plaast is excellently suited for parts. Castings. It is even possible to reprint placards. A greasing of the mold prevents sticking together. Even multi-part forms are no problem. Of course you can also model Plaast with your hand and shape it. The polymorph plastic can be repeatedly heated and deformed. Plaast is varnishable. Plaast does not contain any toxic ingredients !!! You receive from us a bag with 1 kg plastic granulate Here you will find instructions on how Plaast Polymorph plastic can be used in modeling. Plaast Polymorph a plastic moldable from 60 ° C

The brass balls have a metric thread. The tapped hole in the balls is not through, it is a blind hole. The brass balls are suitable for the weight of a centrifugal controller on a steam engine or on a Stirling engine. The brass balls can also be used excellently as decorative elements in model construction or crafts, for example as rehling or railings. The balls can be polish very well on high gloss. These brass ball diameters are available: Brass ball 8mm diameter M3 thread Brass ball 10mm diameter M3 thread Brass ball 12mm diameter M3 thread Brass ball 16mm diameter M4 thread

Very thick-walled test tubes made of Duranglas for the construction of Stirling engines or similar applications in technical model construction. The Schott Duran test tubes are mechanically very resistant. Excellent resistance to temperature changes means that you can also use the test tubes as a displacement cylinder for a Stirling engine without worrying that the glass will burst. You can cut the test tubes with our diamond cutting discs. Below you will find a tutorial video. The test tubes are also suitable for laboratory and medical applications. We carry the Duran test tubes in these different sizes: Schott Duran test tube 10mm x 100mm 5ml (actual size: 9,5mm diameter / 100mm long / inside 7,8mm Schott Duran test tube 12mm x 100mm 8ml (actual size: 11,5mm diameter / 100mm long / inside 9,8mm  Schott Duran test tube 16mm x 130mm 17ml (actual size: 15,5mm diameter / 130mm long / inside 13,5mm (Stirling engine Laura)  Schott Duran Test tube 18mm x 180mm 32ml (actual size: 17,5mm diameter / 180mm long / inside 15,4mm (Stirling engine Rufus)  Schott Duran Test tube 25mm x 150mm 55ml (actual size: 24,5mm diameter / 150mm long / inside 22,3mm  Schott Duran test tube 30mm x 200mm 100ml (actual size: 29,5mm diameter / 200mm long / inside 27,2mm The test tubes available from Schott are made of Duranglas. All test tubes have a flanged edge and a wall thickness of 1.0mm - 1.2mm. Please note that the test tubes do not have the dimensions specified by the manufacturer, but a tolerance of + - 0,5mm. Please note the actual dimensions given by us.

Our pressure springs made of stainless steel can be ordered in various sizes and diameters. You get the springs in packing units of 5pcs. Since the dimensions of the compression springs are particularly small, they are ideally suited for use in model construction. We use the springs in various models. For example, as a valve spring in the internal combustion engine "Karl". We have also used the pressure springs as a pressure spring for a flame damper slide. In addition, the compression springs are also suitable as twist protection for nozzle needles of model building carburetors or for the needles of droplets. All springs are made of stainless 1.4310 stainless steel spring steel wire. In addition, we offer you a pressure spring probeset in which of each spring 2 pieces are included. With the Probeset, you are prepared for many applications in model construction. Da = Outside diameter Di = inside diameter Dd = diameter of spring wire Aw = distance windings L = total length   Da Di Dd Aw L pressure springs 3,15mm 2,75mm 0,2mm 1,2mm 8mm pressure springs 4,7mm 4,2mm 0,25mm 1,4mm 8mm pressure springs 4,3mm 3,7mm 0,3mm 2,3mm 8,5mm pressure springs 4,0mm 3,3mm 0,4mm 1,5mm 20mm pressure springs 4,4mm 3,4m 0,5mm 1,8mm 20mm

Our silicone tube is highly flexible and has a temperature range -60 ° C to + 180 ° C and is slightly cloudy. The silicone hose can be used to connect a steam engine. The tubes are ideally suited for supplying your steam engines with compressed air or steam in the workshop, on model constructions or model building exhibitions. Silicone tube are also suitable as fuel lines for model-built motors due to their good resistance to chemicals. Another advantage of the silicone tubing is that it is transparent and you can always see if, for example, fuel or alcohol is in the line. The following silicone hoses are available:   Innen Außen Wandstärke silicone tube: 2mm 4mm 1mm silicone tube: 3mm 5mm 1mm silicone tube: 3mm 6mm 1,5mm silicone tube: 4mm 6mm 1mm silicone tube: 4mm 8mm 2mm For each selected piece you get 1m silicone tube.We deliver you the ordered length of silicone tube always in the piece

Round belt for driving drive models or small machines. The drive belt has a diameter of 2 mm and a roughened surface. It is made of highly flexible PU material. You can cut the strap to the desired length and then weld it by heating it (lighter or small blowtorch) and pressing it together. These flexible but still very stable straps are ideal for model making. The drive belt is delivered as a 1 m piece. Welding the drive belt is very easy. Use either a candle or a small burner with a soft flame. Hold both ends of the strap to the flame until the plastic begins to melt. Then press the two ends of the strap lightly against each other. After the material has cooled, the excess can be removed with a scalpel or small side cutters.

These pre-milled bearing blocks can be used for your model building developments. Whether you are looking for a main bearing block for your Flammenfresser or Stirlingmotor or for the storage of a transmission wave for a steam engine. The bearing blocks are milled but not yet drilled and can still be adapted by you according to the desired application. These bearing blocks can be a good start if you want to build a steam engine or a Stirling engine yourself. They are made of brass MS 58 and can therefore be easily further processed. The bearing holes are adapted to the ball bearings available. You have the choice between 4 different bearing blocks in different sizes:   Lagerdurchmesser Wellenhöhe Materialstärke Lagerbock Nr.1 15mm 42mm 6mm Lagerbock Nr.2 10mm 26mm 5mm Lagerbock Nr.3 10mm 10mm 4mm Lagerbock Nr.4 3mm 6mm 4mm

The glass fiber wick is 1000mm long. The advantage with fiberglass Wick is that they usually do not need to be burnt and rarely need to be replaced. We use the fiberglass Wick in the burners for our flame eaters and Stirling engines. The wicks burn with spirits, lamp oil or wax. However, in the case of the technical model construction for the driving of the Flame eaters or Stirling engines, only alcohol should be used, since the alcohol does not soot. We exclusively use this glass fiber Wick in our models. You can also use this glass fiber Wick as a spare part for our kits. Of course, the glass fiber cores are also suitable for garden torches or capillary irrigation of your flowers. The following glass fiber wick are available: 3mm Wick diameter 4mm Wick diameter 6mm Wick diameter 8mm Wick diameter The glass fiber cores distributed by us are not coated with chemicals and contain no chemicals.

We manufacture these clamping sets entirely from brass. The DIN 912 screws used are made of stainless steel. We use the clamping sets to attach flywheels to the drive shaft. However, there are a wide variety of possible applications for these clamping bushes in model making. The shaft does not need to be processed, it should just be free of grease. The component to be clamped, for example a flywheel, must have a recess of 14mm in diameter and at least 8mm deep. This clamping bush fits the kits “The Big Nick”, “Karl” andFlame Eater “Lutz”.Technical data clamping sets for 10mm shaft Shaft diameter: 10mm For clamping: 14mm Clamping length: 8mm  Total length assembled: 16mm Largest diameter: 20mm Scope of delivery: 1 piece of clamping bush with 4 DIN 912 screws

With these oak base plates you can visually enhance your steam engines, Stirling engines, flame eaters or combustion engines. We have the basics in different dimensions. The oak panels are also used in our models. The base plates are delivered untreated. They have the look typical of oak, which is particularly effective after oiling.

Diese Riemenscheibe verwenden wir auf unserem Generator. Die 2,3 mm Bohrung passt aber auch auf viele andere gängige Elektromotoren. Natürlich kann man die Bohrung auch noch an seine Bedürfnisse anpassen. Die kleine Riemenscheibe ist komplett aus Messing hergestellt und eignet sich sehr gut um zum Beispiel Antriebsmodelle mit unserem Riemen 2 mm rau anzutreiben. Maße der Riemenscheiben KleinDurchmesser Groß: 16 mm Durchmesser klein: 10 mmDurchmesser Bund: 8 mmBohrung: 2,3mm (passt auf viele Elektromotoren)Befestigungsschraube: M3 MadenschraubeLänge: 16 mm findet zum Beispiel