Technische Handelsonderneming Nederland b.v.
disclaimer | privacy statement | language:    Nederlands   English   Deutsch   Francais  
Technische Handelsonderneming Nederland b.v.

Postbus 390
7500 AJ Enschede
T. +31 (0)53 432 34 46
F. +31 (0)53 430 71 58
Technische Handelsonderneming Nederland b.v.

Postbus 390
7500 AJ Enschede
The Netherlands
T. +31 (0)53 432 34 46
F. +31 (0)53 430 71 58
E. info@thn.nl



Office:
H. ter Kuilestraat 30
7547 BD Enschede
The Netherlands

Dry bearings (DU/DX) - slide bearings with a PTFE or POM running layer

Dry bearings have been used for many years in numerous construction projects and in a huge variety of machines. Dry bearings are characterised by a good price/quality ratio, durability and self-lubricating properties.

THN has a large standard range in stock of around 150,000 dry bearings in various models. This stock includes, but is not limited to, cylindrical slide bearings, collar bearings, thrust washers, thrust washers with collar and slide plates. This stock includes the types DU and DX, with steel, bronze or inox (stainless steel) outer jacket. In addition to our wide standard selection, we can also arrange for dry bearings to be manufactured in different materials, sizes, tolerances and models.

Most of our stock consists of DU dry bearings with a steel outer jacket in shaft diameters from 2 to 500 mm. We also have many DX dry bearings, thrust washers (with and without collar) and slide plates in stock.

The most important properties of  DU dry bearings are:

  • Sliding surface made from a PTFE composite with a steel, bronze or stainless steel outer jacket
  • Good wear and friction properties across a large range of loads, speeds and temperatures
  • Maintenance-free operation
  • Also suitable for lubricated applications
  • Wide standard range

The most important properties of  DX dry bearings are:

  • Sliding surface made from POM with a steel outer jacket
  • Bearings with a minimum of lubrication for grease-lubricated applications
  • Maintenance-free operation
  • Little wear
  • Best performance at relatively high loads and low speeds
  • Wide standard range
 

The suitability of dry bearings is as follows:

Conditions DU DX
Dry +++ +
Oil ++ ++
Grease + +++
Water + +
Process fluid + +

Technical data

Permitted loads for the dry bearings are as follows:

Mechanical value DU DU-B DX
PV (N/mm²·m/s) 1,8 1,8 2,8
P max. (N/mm²) static 250 140 140
P max. (N/mm²) dynamic 140 140 70
V max. (m/s) continuous 2,5 2,5 2,5
Maximum temperature + 280°C + 280°C + 120°C
Minimum temperature - 200°C - 200°C - 40°C

* DU = Dry bearing with steel outer jacket and PTFE wearing surface.
* DU-B = Dry bearing with bronze outer jacket and PTFE wearing surface.
* DX = Dry bearing with steel outer jacket and POM wearing surface.

© Copyright 2014 Technische Handelsonderneming Nederland b.v.