ZEDEX® DIN AND STANDARD PARTS
ZEDEX® SOLUTIONS
The products offered are intended to support customers with DIN and standard parts. The technical data of the machine element offered are based on the results of tests carried out in real conditions and have not only been calculated on a theoretical level.
This was possible thanks to the targeted choice of the dimensions of the machine elements that were tested on our test benches. The results obtained were then adapted to the other dimensions offered.
FOIL BEARINGS
Foil bearings are slotted bushings that are made from sheet strips by cold forming. This type of plain bearing bush is particularly suitable when large diameters are required, for which a sufficiently large semi-finished product is not available.
For detailed information, read our documentation on:
Find out the available standard dimensions in our delivery programme.
Custom-made dimensions are also possible. Do not hesitate to send us your request.
When are foil bearings suitable?
- with large diameters
- if you want to save costs
- with high temperature fluctuations
- if a low operating bearing clearance is required
- if the bearing should be replaced quickly and without cumbersome tools
When are foil bearings not suitable?
- if no axial fixation is available and it cannot subsequently be done into the housing
- if a rotary movement between housing and bearing is not permitted
Stave bearing as alternative
If a wall thickness > 6mm and/or a width > 140mm are required, we recommend the usage of a stave bearing.
Take advantage of the consulting of our application technology.
Do not hesitate to send us your request.
Here you can access to our delivery programme
On the following page you will find a filterable overview of our delivery program.
SLIDEWAYS
ZX-100K® dry running sliding guides are available in various sizes. The dimensions are based on our standard and are offered with the lower surface pre-treated for bonding. The usage of the right lubrication, might be helpfull in some application.
For detailed information, read our documentation on:
Find out the available standard dimensions in our delivery programme.
Custom-made dimensions are also possible. Do not hesitate to send us your request.
Here you can access to our delivery programme
On the following page you will find a filterable overview of our delivery program.
SPINDLE NUTS
We supply motion nuts with trapezoidal thread designated for dry running, made of the following ZEDEX® materials:
- ZX-100K
- ZX-410
- ZX-530
in the following versions:
machined
- single-start screw right-hand thread, slotted
- 2 flanges for bellows connection
- Thread according to DIN 103
- Quality 7e according to DIN 103
with the following dimensions
- TR18x4
- TR20x4
- TR30x6
- TR40x7
according to our standard spindle nuts drawings.
For detailed information, read our documentation on:
Find out the available standard dimensions in our delivery programme.
Custom-made dimensions are also possible. Do not hesitate to send us your request.
Here you can access to our delivery programme
On the following page you will find a filterable overview of our delivery program.
Precision plain bearing bushes
We deliver precision plain bearing bushes in following versions:
Standard version with dimensions according to:
- DIN ISO 3547-1 (DIN 1494 Teil 1)
- DIN 1495 Teil 2
- DIN 1498 Form F (without slot)
- DIN 1552 Teil 1
- DIN 1850 Teil 1,3,4,5
- and much more …
each made from our engineering & high-performance polymers of the ZEDEX® families
Special dimensions version:
- with dimensions according to your specifications
- from few parts to volume production
- inner diameter from 2 mm up to 250 mm
Special version:
- in combination with metal up to a shaft diameter of 1600 mm
- as a turbine bearing for hydrodynamic lubrication
- as a foil bearing
For detailed information, read our documentation on:
Standard version
Standard plain bearing bushes are manufactured with the highest precision and made of all ZEDEX® engineering & high-performance polymers. There are currently over 2000 dimensions in the range from 2mm up to 250mm inner diameter.
Depending on the requirements, 4 bearing clearance classes (coarse, standard, fine and negative) can be selected.
Find out the available standard dimensions in our delivery programme.
Take advantage of the consulting of our application technology. On request we design the bearing for you in a plastic-compatible manner and provide you with a load bearing capacity and service lifespan calculation.
Special dimensions version
If the dimensions of the bearing you are looking for do not correspond to the any standard, we can manufacture it – whether shorter or longer, smaller or larger – according to your specifications.
Plain bearing bushes with special dimensions are manufactured with the highest precision and available made from all ZEDEX engineering & high-performance polymers according to your requirements. They are availabe as a prototype, in small series or in volume production.
Do not hesitate to send us your request.
Otherwise, take advantage of the consulting of our application technology department. On request, we design the bearing for you in a plastic-compatible manner and provide you with a calculation of the load bearing capacity and the service lifespan.
Special version
You need a special plain bearing bush in a special design
- as a spherical bearing
- as a slotted bearing
- as a composite plastic/metal bearing
- as a hydrodynamic bearing
with special dimensions
- very big or small
- highest precision
- negative bearing clearance and low friction
with special properties
-
low friction
- high wear resistance
- anti-adhesive
- low outgassing
- physiological harmlessness
- medical approvals
for harsh environments and extreme operating conditions
- cryogenic temperatures
- high temperatures
- strong impacts and vibrations
- high edge pressureaggressive chemicals
- high surface pressure
- dirt and abrasive particles
with integrated functions
- sealing lips
- toothing
- grooves for the transmission of torques
- snap-fit connection
or simply according to your wishes.
Do not hesitate to send us your request.
Otherwise, take advantage of the consulting of our application technology department. We will offer you a technically and economically sensible solution for your requirements.
All the bushings are offered in four different bearing clearance classes.
| Bearing clearance class | Abbreviation | Recommended housing bore * | ISO tolerance of the inner bore after pressing-fit at 20°C | Application / restrictions |
|---|---|---|---|---|
| Coarse | C | H5 | C8 | highest bearing load capacity at high ambient temperatures |
| Standard | D | H5 | D8 | full bearing load capacity |
| Fein | F | H5 | F8 | high precision with high sliding speed & reduced load |
| Negative | N | H5 | N8 | highest precision max. sliding speed up to 10m / min |
* Basically, the usage of a mounting hole with a quality different from ISO 5 is possible (e.g. H4 or H6). In these cases, after having pressed-fit the bush, only the upper deviation of in the chart given “ISO tolerance of the inner bore after pressing-fit at 20°C” changes, namely it changes of the value of the difference between the ISO tolerances of the mounting hole used and the one recommended (H5).
Here you can access to our delivery programme
On the following page you will find a filterable overview of our delivery program.
Stave bearings
This type of plain bearing bush is particularly suitable when large diameters are required, for which a sufficiently large semi-finished product is not available.
Find out the available standard dimensions in our delivery programme.
Custom-made dimensions are also possible. Do not hesitate to send us your request.
Stave bearing with segment connectors
The noblest version of the stave bearing is the one with segment connectors. Usually the “staves” or segments are made of ZX-100K and the special safe segment connectors are made of ZX-410.
When the lifespan of the stave bearing is reached, the connectors ensure that the bushing is still properly supported within the maximum allowable clearance.
At this point you can carry out a rapid maintenance of the stave bearing, with less effort. The worn segments can simply be replaced with new ones, without disassembling the shaft.
Stave bearing without segment connectors
The version of the stave bearing without segment connectors is obviously the price effective one, but at the same time the more laborious version during both the assembly and replacement phase, after having reached the end of its service lifespan.
However, once mounted, the bearing guarantees the same performance as the one with connectors. It is recommended to keep the wear controlled with regular maintenance checks.
Do not hesitate to send us your request.
Injection-moulded stave bearing
For applications where the size of the segment allows it and at the same time several units are required, it is advisable to analyse the possibility of injection moulding the stave bearing segments.
Here you can access to our delivery programme
On the following page you will find a filterable overview of our delivery program.
The searched product is not present ?! Take a look at our custom-made section
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