L 075 timing pulleys (3/4" belt)

L 075 timing pulleys work with L belts with a pitch of 3/8" (9.525 mm) and a width of 3/4" (19.1 mm). This is the middle width of the L profile - it carries a higher load than the 050 width, while the drive remains relatively narrow.

L 075 timing pulleys - higher load capacity without changing diameters or ratio

A wider pulley lets you increase the load capacity of the drive without changing diameters or the ratio - just replace the pulleys and belt with wider ones. The belt spreads the force over a larger tooth area, so it wears more slowly. Smaller pulleys are made of C45 steel, and larger ones of grey cast iron, which dampens vibration well. Fewer belt changes mean shorter machine downtime.

L 075 timing belt pulleys - pilot bore and Taper-Lock

L 075 pulleys in two subgroups: Pilot bore, with a pilot bore to be machined for the shaft, and Taper-Lock, with a seat for a taper bush. The dimensions are given on the product page.

L 075 or L 050? Customer questions about 3/4 inch synchronous pulleys

When should I choose the 075 width instead of 050?

When a drive with an 050 belt runs at the limit of its load capacity or the belt wears too quickly. A wider belt spreads the force over a larger tooth area.

Do L 075 pilot bore and Taper-Lock pulleys have the same tooth rim?

Yes, with the same number of teeth the meshing is identical. They differ in how they are fixed to the shaft and in the shape of the hub.