Maintenance-free plain bearings with lubricating plugs

Maintenance-free plain bearing with lubrication pins, flange, cylinder, and thrust disc

Self-lubricating maintenance-free plain bearings for heavy-duty conditions

Maintenance-free plain bearings with lubricating plugs are suitable for heavy loads, high temperatures, vibrations and for use in corrosive environments. By using CuAI10Ni with specific lubricating plugs, the maintenance-free plain bearing can also be used in applications with salt water.

Maintenance-free plain bearing with lubrication pins, flange, cylinder, and thrust disc

Advantages of maintenance-free plain bearings

Cylindrical plain bearing with fixed lubrication pins for maintenance-free lubrication

Essential advantages of maintenance-free plain bearings with lubricating plugs are:

  • Suitable for corrosive environments
  • High load capacity
  • Maintenance-free
  • Suitable for impact loads and vibrations
  • Suitable for high temperatures

Cylindrical plain bearing with fixed lubrication pins for maintenance-free lubrication

Applications of maintenance-free plain bearings

Aerial view of canal lock in urban area in sunlight, plain bearing application

These plain bearings are most suitable for applications involving a high loading and requiring maintenance-free operation. Common applications are:

  • Flood/lock gates
  • Offshore
  • Iron and steel industry
  • Furnace construction
  • Mold construction

Aerial view of canal lock in urban area in sunlight, plain bearing application

Materials

The maintenance-free plain bearings with lubricating plugs are made from CuZn25Al5 and are fitted with lubricating plugs. CuZn25Al5 is brass that has copper and zinc as its basis and is a construction material characterized by a high static load capability. As well as CuZn25Al5, there are many other alloys suitable for both the bearing and the lubricating plugs.

Lubrication

Maintenance-free plain bearings are provided with fixed lubricating plugs as standard. Additional lubrication is recommended for very low or very high speeds.

Detailed images of lubricating plugs

Detailed images of lubricating plugs

Specification overview of maintenance-free plain bearings

Specification overview
PropertiesTO
Max. load (Dyn/stat), N/mm2100 / 250
Max. sliding speed m/s0.25
Max. PV value N/mm2 x m/s3.34
Temperature range, oC+300 (depending on material)
Shaft tolerancee7 - f7 - h6
Housing toleranceH7
Shaft roughnessRa ≤ 1.0
Shaft hardness> 200 HB

Product finder plain bearings

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Find the right plain bearings for your applications with the online product finder. Enter the values for the load, speed, inner diameter and length. You immediately get an overview of the type of plain bearings that match the entered values. This way you know exactly which plain bearings are most suitable for your application.

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Tablet with THN online tool for configuring and ordering linear shafts/plain bearings/sintered filters

Need technical advice?

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Are you looking for plain bearings and do you want to contact a technical advisor? Call us on 03 72 39 51 51 or send an email to info@thn.fr. We are happy to help.

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