Carl Stahl TECHNOCABLES

Pulleys

If ropes run over over pulleys the working life can be extended by the right choice of pulley and suitable wire rope.

The working life of the rope depends on the following factors:

  • Groove geometry
  • Ratio between groove diameter and rope diameter
  • urface quality of the groove
  • Material of the pulley
  • Rope construction

The ratio between groove diameter and rope diameter should be chosen according to the rope construction:

Your contact

Carl Stahl Technocables GmbH
phone: +49 (0) 7162 4007-2200
e-mail: technocables carlstahl.com

Choice of the right pulley

Wire rope diameter Bending cycles Recommended pulley type
low medium high
up to 3 mm X BP pulley without bearing    details...
up to 3 mm X MP pulley with plain bearing    details...
up to 3 mm X UP pulley with ball bearing    details...
up to 3 mm X SP pulley with closed ball bearing    details...
up to 8 mm X LP pulley without bearing    details...
up to 8 mm X LP pulley with plain bearing    details...
up to 8 mm X LP pulley with needle bearing    details...

Recommended minimum diameter of the pulley

Rope construction Groove diameter
in mm
Rope construction 7x7 und 6x7+FC 42 x Rope diameter
(uncoated)
Rope construction 7x7 und 6x7+FC 25 x Rope diameter
(uncoated)
Rope construction 8x19+7x7 16 x Rope diameter
(uncoated)

Apart from the correct choice of groove diameter the right choice of the pulley bearing is important. The following matrix will help you to find the right pulley for your application.

minimum diameter