Trellex pulley bar rubber lagging

for belt conveyors

Trellex® pulley bar from Metso is a quick replaceable lagging system that has been designed to service a wide range of belt conveyor applications. It is fastened with self tapping M8 screws directly onto the pulley shell, so it´s easy to install without removing belt or pulley.

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About Metso's Trellex® pulley bar rubber lagging


Metso’s Trellex pulley bar is used in applications that require an easy installation and operation. Benefits include the application and removal of the lagging without removing the drum or belt from the conveyor system.


Trellex pulley bar is made of hardwearing rubber and molded to an aluminium profile, this product has the perfect combination of elasticity and rigidity. This gives a superior ability to handle internal wear. The pattern also naturally eliminates water from the surface of the lagging as the pulley rotates.


Trellex pulley bar 3D

Installation: Medium to heavy duty applications


Trellex pulley bar 3D

Benefits and features

  • Improved belt tracking

  • Reduces slippage between belt & pulley

  • Suitable for light, medium & heavy applications

  • Suits any pulley size

  • Easy to install – without removing belt or pulley

  • Reduced application time

Technical description

Material: Wear Rubber Trellex T60 ShoreA
Wear side:Diamond-pattern
Installation: Bolted to pulley surface

Lagging specifications

22x70x1365 mm

Item codes
Storage recommendations

Storage room for lagging must be cool, dry and kept clean.
Protect the lagging from dust, water etc. with suitable coverings.
Avoid storage places near sources of ozone generating equipment.
UV light can damage the product – protect product against direct sunlight and strong artificial light.
Do NOT store outside.
Do NOT store together with fuels, lubricants, acids, disinfectants, solvents or other chemicals.
Allow 24 hours before use when lagging is removed from cold storage.
Shelf life for lagging: 3 years.
(Stored covered out of sunlight UV and away from ozone generating equipment)

Selection guide

Use this formula to determine if pulley bars can be used:
F = P
h x D x B
P = power (kW)
h = belt speed (m/s)
D = pulley diameter (m)
B = pulley width (m)
F should not exceed 130.


Shape is designed to suit all pulley diameters:

Trellex pulley bar selection web.jpg




Hole centers on the drum, CC = 114 mm (4.5"):

Hole diameter 7.4 mm (0.29") for M8 self tapping screws:


Recommended tightening torque 25 Nm (19 lbf/ft):

Never install a piece that is shorter than 140 mm (5.5") and never use fewer than two screws:

Standard distance between Pulleybars is 35 mm. At belt speed >1.5m/s the distance between the pulley bars can be as little as 3 mm:

To avoid high noise level at belt speed >1.5 m/s we recommend installation as alternative 2

Pulley bar consumption.png

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