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The company SPN SCHWABEN PRÄZISION FRITZ HOPF GMBH, is a Manufacturer/ Producer, founded in 1919, which operates in the Moto-reducers industry. It is based in Nördlingen, Germany.

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Customized drive solutions based on tried-and-tested standards – the spn principle Varying demands require individual solutions. Whether you need robust gear components,, high-performance gear units or complex mechatronic drive systems: We manufacture systems and components that perfectly suit the customer's requirements. In many cases we rely on high-quality components to the SPN standard as the basis that we then precisely modify to meet our customers' requirements. This is not only expedient from a technical point of view but also makes sense for economic reasons – and offers a wide scope to produce custom solutions. With this principle – in conjunction with the highest possible quality and maximum reliability – we have already convinced many well-known companies around the world.


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DESIGN: Square housing Shafts at 90° to each other (other angles are possible) SPECIAL CHARACTERISTICS: Angled output high efficiency


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Our planetary gear unit E2 is characterized by an especially compact, simple and resilient design. The E in the name stands for „Economy“. A price-competitive gear box in typical SPN-quality. Design features ● Easy motor installation due to tangential-clamping ● Efficiency > 96% ● Compact rigid steel housing with B14 flanging ● Backlash < 10‘/15‘ ● Any mounting position ● Lifetime lubrication with synthetic grease


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The new generation of our high performance planetary gears with helical toothing, tangential-clamping for easy installation and sun wheel fixing. Besause of large shaft dimensions it dues a high rigidity and high approved radial load. The backlash of the SPN-planetary gear-series PURE is one staged = 4' / two staged = 6'. Analysis of the maximum allowed radial and axial forces to the output shaft: The SPN-planetary gears of the PU4-series are mounted with taper roller bearings on the output side. The allowed radial and axial forces Frzul and Fazul can be read from the diagrams in the prospect. Design features: silent due to helical toothing easy motor installation due to tangential-clamping with sun wheel fixing efficiency > 97% backlash < 4‘/6‘ any mounting position large-dimensioned shaft sizes guarantee a high rigidity compact rigid steel housing with B5 flanging high approved radial forces due to optimized taper roller bearing lifetime lubrication with synthetic oil

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Sonder-Schneckengetriebe für Webmaschinenhersteller

Latest project ・ 24 Feb 2021 read more Open In New icon

SPN hat ein Schneckengetriebe speziell für den Antrieb einer Webmaschine entwickelt, produziert und montiert. Das Getriebe wird über einen Zahnriemen bzw. über ein Zahnriemenrad auf der Schneckenwelle angetrieben. Der Triebsatz besteht aus einer einsatzgehärteten Schneckenwelle und einem Bronze-Schneckenrad und hat einen Achsabstand von 80 mm, mit einer Übersetzung von i=8:1. Es wurde unter Anderem der Achsabstand reduziert und eine höhere Leistungsdichte erreicht. Über weitere Riemenräder werden verschiedene Nebenaggregate von der Schneckenwelle angetrieben. Auf der Abtriebswelle befindet sich neben dem schrägverzahnten Stirnrad auch noch ein Kettenrad, das die Ölpumpe der maschinenseitigen Durchlaufschmierung des Getriebes antreibt. Die Achse des Gegenrades wird über ein ins Getriebegehäuse integriertes Stahlbauteil geklemmt. Das Getriebegehäuse besteht aus 2 Aluminium-Kokillengussteilen. Die Maschinen unseres Endkunden sind nun mit unserem Getriebe weltweit im Einsatz.


Company info

Key figures

  • Company headcount
    201 – 500


  • Year established
  • Main activity
    Manufacturer/ Producer

Business info

Trading areas

  • Regional
  • National
  • European
  • Check Circle Outline icon International

Delivery areas

Keywords associated with this company

  • Moto-reducers