Flat belt pulleys

With over 100 years of experience in the design and manufacture of belt drives, we are a powerful partner for your drive solutions. We manufacture individual flat belt pulleys in all common profiles up to a diameter of 2,500 mm.

Flat belt pulleys are important and versatile drive element in many areas. Flat belt drives have clear advantages, especially in cases where the drives that are subject to shock loads, and which are also subject to vibration. The discs are very economical and highly reliable.

In order to meet the performance requirements of our customers, all of our drives are individually designed. Weight, moment of inertia, geometry and performance parameters are perfectly matched to the requirements. Due to our flexible semi-automatic molding process, there are no model costs for the initial production. Similarly, there are no costs for any geometry adjustments before the moulding process. This flexible process enables the most economical production and guarantees minimum delivery times with maximum responsiveness.


Flat belt pulleys are usually designed with a cylindrical bore. In the case of higher power transmissions, it is also possible to work with clamping sets thanks to a reinforced hub design. Alternatively, all flat pulleys can also be manufactured as a TaperLock version (TL).

The drives can be manufactured quickly and extremely flexibly even in the event of changes. The batch size of 1 piece for urgent spare parts or prototypes as well as series are not a problem.


Flat belt pulleys for TL clamping bushes


Flat belt pulleys with cyl. drilling

Konische Flachriemenscheiben

Tapered flat belt pulleys


Band saw rolls


Manufacturing options and advantages at a glance

  • Standard material: EN-GJL-200 to EN-GJL-300 (GG-20 to GG-30), DIN EN 1561
  • Produced on the basis of DIN 111 or customised variations
  • Custom-made products in alternative materials such as nodular cast iron (EN-GJS-400 to EN-GJS-600) or cast steel (GS)
  • Custom-made products according to individual customer specifications or drawings
  • Any design as an arm, web or solid pulley
  • For heavy and wide drives are also available as a double-arm or double-web pulley with stiffening ribs
  • Up to Ø 2,500 mm and a unit weight > 6T
  • Standard balancing standard G16 - G 6.3 or G 2.5 is also possible
  • For high peripheral speeds
  • Rim widths > 750 mm possible
  • Design, control, recalculation and optimization of belt drives
  • Disc geometry will be adapted to the individual drive situation
  • Full transpaurency for the customer by the creation of released drawings
  • Flexible molding process without individual models and without model costs!
  • High flexibility and fast availability

Flohr Industrietechnik GmbH - Im Unteren Tal 1 - D-79761 Waldshut-Tiengen - Phone: +49 (0)7751 / 8731-0 - info@flohr-industrietechnik.de

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