POM bearings

POM bearings

Minimal maintenance under severe operating conditions

POM bearings have been specially developed for marginally lubricated applications and can thus function for long periods with minimal lubrication. The POM bearings are produced according to ISO 3547.

Materials

POM bearings are made from a steel backing to which a sintered bronze layer is applied. A POM top layer is then applied to this bronze layer. The bronze intermediate layer ensures efficient heat dissipation and makes for a strong joint between the steel backing and the sliding surface.

The steel backing is provided with a layer of copper or tin to prevent corrosion, while the POM top layer incorporates grease pits to retain the lubricant.

Lubrication

We recommend lubricating POM bearings with grease. The grease must contain an antioxidant for environments with temperatures over 50°C. Greases containing EP additives or significant amounts of graphite or MoS2 are not generally recommended.

Lubricating with oil is only advisable with applications in which the oil temperature does not exceed 70°C.

Cross-section of POM bearings

Cross-section of POM bearings

Advantages

POM bearings

Main advantages of POM bearings include:

  • Minimal maintenance
  • High sliding velocity
  • High load capacity
  • Low friction coefficient
  • Minimal bearing play

POM bearings

Applications

POM bearings application

POM bearings are especially suited to severe operating conditions where frequent maintenance is not possible. Common applications are:

  • Hydraulic applications
  • Elevators
  • Transportation
  • Mechanical engineering
  • Construction machinery

POM bearings application

Specification overview

PropertiesTX
Max. load (Dyn/stat), N/mm2140 / 250
Max. sliding speed m/s2.5
Max. PV value N/mm2 x m/s2.8
Temperature range, oC-400 / +130
Shaft tolerancef7 - h8
Housing toleranceH7
Shaft roughnessRa ≤ 0.4
Shaft hardness> 200 HB

Download brochure

Download the plain bearing brochure

You will find everything about our range of plain bearings in THN’s plain bearing brochure. From an overview of the plain bearings, an overview of the specifications, to installation instructions and complete dimension tables.

Download the plain bearing brochure

Download the plain bearing brochure

Customer service

THN Customer Service

Are you looking for plain bearings and you want direct contact with one of our plain bearing specialists? Give us a call, we’ll be happy to help.

Call our customer services on: +33 (0)3 72 39 51 51

THN Customer Service

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