News
May 2011
D&E Trading
moves to new
premises |
Page updated
April 2011 |
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D&E Trading AB
Phone: +468-4474050
Fax: +468-4474060
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Quality and service |
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Slide Bearing Types
Rolled Bronze
Turned Bronze
Turned Bronze with Solid Lubricant
Oil-Bronze
Multilayer
Compound
Steel
Composite
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PPS
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Technical Data:
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Examples of typical uses
• Forestry Machinery
• Agricultural Machinery
• Lifting Tables
• Person Lifts
• Office Furniture
• Paper Machines
• Training Equipment
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Advantages
• Especially suitable for mechanical processing
• Designed to function even without lubrication
• Works well, even in dirty environments
• Practically no water uptake (0.1-0.2%)
• Economical
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Characteristics
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Description
PPS is a material that tolerates high loads, which is price worthy when it is compared with PEEK. A high E modulus, a high pv value and low moisture up take contribute to this material’s great usability.
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Lubrication
The compound bearing contains lubricant. Therefore, in principle they can be used with one-time lubrication. Additional lubrication is recommended to protect the shaft against corrosion. Additional lubrication should be introduced through the shaft openings or radially via the housing. All the normal lubricating greases can be used. Greases with additives of graphite or molybdenum disulphide should be avoided. |
Tolerance
Bearings pressed in to a H7 seat give a tolerance of F10. Recommended shaft tolerance h9-h7. |
Special Designs
Only larger series.
• Infinite material combinations, which can give unique characteristics for special designs
• Internal and external lubricating grooves
• Slide bearings with integrated seals
• Other tolerance positions
• Spherical and plane washers
• Drawing details
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TECHNICAL DATA COMPOUND BEARINGS |
| Description |
Unit |
PDE |
PBT |
PPS |
PEEK |
POM |
Thermal conductivity |
W/(mK) |
0,26 |
2,27 |
0,34 |
0,60 |
0,32 |
Linear expansion coefficient |
10-5/m*K |
1,4 |
1,3 |
3,0 |
3,0 |
12,0 |
Dynamic temperature range
|
oC max |
-50/
+100 |
-50/
+100 |
-40/
+200 |
-100/
+250 |
-40/
+80 |
Max. temp., no load |
oC max |
150 |
200 |
260 |
310 |
140 |
Density
|
g/cm3 |
1,65 |
1,46 |
1,74 |
1,53 |
1,52 |
Moisture up take
|
% |
0,10 |
0,15 |
0,05 |
0,10 |
0,65 |
Tensile strength |
N/mm2 |
65 |
100 |
155 |
150 |
50 |
E modulus |
N/mm2 |
2800 |
4200 |
13000 |
6500 |
2500 |
Allowed surface loading |
N/mm2 |
70 |
80 |
120 |
150 |
60 |
Allowed rotational velocity |
m/s |
1,0 |
1,0 |
1,2 |
1,5 |
1,0 |
Allowed linear velocity |
m/s |
3,0 |
4,0 |
4,5 |
5,0 |
4,0 |
Pv value max
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N/mm2 x m/s |
0,8 |
1,0 |
2,6 |
3,5 |
0,6 |
Dynamic friction against steel
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- |
0,08-0,15 |
0,10-0,13 |
0,15-0,30 |
0,10-0,50 |
0,07-0,15 |
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Compound
PDE
PDE-F
 PDE-LT
PDE-T
PBT
PBT-F
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Compound
PPS
PEEK
PEEK-F
POM
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CAD-files from