Toothed or timing belt pulleys

With over 100 years of experience in the design and manufacture of belt drives, we are a powerful partner for your drive solution.

Toothed or timing belt pulleys are an important drive element for slip-free synchronous drives. We can manufacture pulleys for all common profiles as well as special profiles from the leading manufacturers. The scope of delivery includes both standard bearing plates as well as special custom-made products up to a diameter of >2,000 mm.

All geometries can be easily manufactured using a flexible, model-less moulding process. From a batch size of 1 piece, for urgent spare parts, prototypes, pilot series models or small series, toothed belt pulleys can be produced according to customer specifications or drawings. The design is also possible in alternative materials (EN-GJS, steel, aluminum, plastic, etc.). The ideal solution for individual drives is developed in close cooperation with the customer.


With the toothed or timing belt and the matching toothed belt pulleys, perfectly matched belt drives are available

timing belt pulley
timing belt pulley
timing belt pulley

At a glance


  • Special production according to customers individual specifications or drawings
  • Standard for peripheral speeds up to 42 m/s 
  • Maximum pulley diameter 2,500 mm
  • Maximum crown width 750 mm 
  • Maximum pulley weight approx. 6,000 kg

Flexible moulding process | Fast delivery

  • Individual model setups are not required – there are no model costs!
  • Change requests or adaptations can be accommodated without costs
  • Short term production and delivery possible


  • Standard: Cast iron with lamellar graphite EN-GJL-200 to EN-GJL-300 (GG-20 to GG-30), DIN EN 1561 
  • Alternative: Nodular cast iron (EN-GJS-400 to EN-GJS-700), cast steel (GS) or welded steel design

Shaft-hub connection

  • Cylindrical bore, with and without keyway
  • Prepared for couplings, flanges, clamping sets or Taper-Lock clamping bush connections

Possible designs

  • Arm, plate or solid pulley.
  • Double arm / double bottom pulley with stiffening ribs
  • Integrated V-grooves for all belt profiles
  • Two-piece drive pulley 
  • Steel / welded constructions

Balancing standards

  • Standard according to DIN 21940-11 in quality grade G16
  • Available in quality grades G6.3 or G2.5 on request

Surface treatment

  • Primed / black oxide finish as standard
  • Individual surface treatment and special painting possible


  • Flexible moulding process without individual models and without model cost
  • Special designs according to individual customer specifications or drawings
  • Pulley geometry optimally adapted to the respective drive situation
  • Individual design, control, recalculation and optimization of your drive
  • Individual machining (drilling, grooving, surface treatment...) according to customer specifications
  • Documentation of residual imbalances and surface treatments
  • Detailed documentation to prove material properties, balancing grades and surface treatments possible
  • Full transparency through creation of released drawings
  • Ideal for prototypes, as well as individual or series parts
  • Short-term availability of urgent spare parts during machine downtime
  • Extensive stock

Flohr Industrietechnik GmbH - Im Unteren Tal 1 - D-79761 Waldshut-Tiengen - Phone: +49 (0)7751 / 8731-0 -

Privacy policy

Our web site uses external components. These help us to constantly improve our offer and to provide you with a comfortable visit. By loading external components, data about your behavior may be collected by third parties, which is why we need your permission. Without your permission, there may be restrictions on content and operation. You can find detailed information in our Privacy policy.