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KS P11
Material information
P11...maintenance-free and robust
P11 is a leaded, robust sliding material with maximum tribological performance. It is designed for maintenance-free, dry-running applications, but can also be employed in systems with liquid lubrication. The use of grease as a lubricant with P11 is only possible to a limited extent, and is not recommended.
Material production
The solid lubricant mass is produced in a specially adapted mixing process. In a parallel, continuous sintering operation, bronze powder is sintered onto the steel or bronze back as a sliding layer. This produces a sliding layer with a thickness from 0.2 mm to 0.35 mm and a pore volume of approx. 30 %. Next, the cavities are filled with solid lubricant by means of impregnating rollers.
This process step is controlled in such a way that a running-in layer of solid lubricant up to max. 0.03 mm thick is produced above the sliding layer. In further thermal treatments, the characteristic properties of the material system are adjusted, and the required thickness tolerances of the composite material are produced using controlled roller pairs.
Important!
The materials P11 contain lead and must therefore not be used in the food sector.
Plain bearing production
Standard designs for plain bearings are
Sliding elements in a great variety of designs are produced from P10 and P11 in cutting, stamping and shaping processes.
In a final step, plain bearings manufactured from P10 undergo corrosion protection treatment on the bearing back, face reliefs and striking faces.
Standard version: Tin
layer thickness: approx. 0.002 mm
Additionally, P10 plain bearings can be supplied with improved corrosion protection coating “Zinc, transparent passivated”, on request.
P11 does not require any additional corrosion protection.
Note:
Tin is used as temporary corrosion protection and an assembly aid.
Characteristics of P11
Material P11 is recommended for more stringent requirements in terms of corrosion resistance or for use in aggressive media.
It has some advantages over P10 in this respect:
- Very good thermal conductivity and therefore greater reliability
- Anti-magnetic
Hydrodynamic operation
Use in hydrodynamic conditions is possible without problems up to a sliding speed of 3 m/s. Continuous operation of over 3 m/s runs the risk of current erosion or cavitation. Motorservice offers the calculation of hydrodynamic operating conditions as a service.
Material composition
Layer systems, chemical composition, material characteristics
- Layer systems P11
1. Running-in layer
PTFE matrix with bulking agent¹ Layer thickness [mm]: max. 0.03 2. Sliding layer
Tin-bronze Layer thickness [mm]: 0.20–0.35 Pore volume [%]: approx. 30 3. Bearing back
Steel Steel thickness [mm]: Variable Steel hardness [HB]: 80-160 1 The pores of the sliding layer are also filled with this lubricant mass.
- Chemical composition
Running-in layer
Components % Weight PTFE 44 Pb 56 Sliding layer
Components % Weight Sn 9 to 11 Cu Remainder Bearing back
Material Material information Bronze CuSn 6
DIN 17662 - Material characteristics
Characteristic values, load limit Designation Unit Value Permitted pv value pvzul. MPa·m/s 1,8 - Static
pvstat MPa 250 - Dynamic
pdyn MPa 140 Speeds - Dry running
vrot [m/s] 2 - Hydrodynamic operation
vlin [m/s] 3 Continuous operation temperature - Min.
Tmin °C -200 - Max.
Tmax °C 280 Temporary Tshort °C 140 Thermal expansion coefficient a Bronze 10–5 1/K 1,7 Coefficient of thermal conductivity l Bronze W/m/K <=70
Models and tables of dimensions
Model range P11 with bronze back, maintenance-free
- Strips PAS.. KS PERMAGLIDE P11
Description L B S3 PAS 20180 P11 500 180 2,0 PAS 10160 P11 500 160 1,0 PAS 15180 P11 500 180 1,5 PAS 25180 P11 500 180 2,5 - Bushes PAP.. KS PERMAGLIDE P11
Description Di Do B PAP 0406 P11 4 6 6 PAP 0505 P11 5 7 5 PAP 0606 P11 6 8 6 PAP 0610 P11 6 8 10 PAP 0808 P11 8 10 8 PAP 0810 P11 8 10 10 PAP 0812 P11 8 10 12 PAP 100115 P11 100 105 115 PAP 1005 P11 10 12 5 PAP 10060 P11 100 105 60 PAP 1010 P11 10 12 10 PAP 1015 P11 10 12 15 PAP 1020 P11 10 12 20 PAP 1210 P11 12 14 10 PAP 1212 P11 12 14 12 PAP 1215 P11 12 14 15 PAP 1220 P11 12 14 20 PAP 1225 P11 12 14 25 PAP 1415 P11 14 16 15 PAP 1515 P11 15 17 15 PAP 1525 P11 15 17 25 PAP 1615 P11 16 18 15 PAP 1625 P11 16 18 25 PAP 1815 P11 18 20 15 PAP 1825 P11 18 20 25 PAP 2015 P11 20 23 15 PAP 2020 P11 20 23 20 PAP 2025 P11 20 23 25 PAP 2030 P11 20 23 30 PAP 2215 P11 22 25 15 PAP 2220 P11 22 25 20 PAP 2225 P11 22 25 25 PAP 2430 P11 24 27 30 PAP 2525 P11 25 28 25 PAP 2530 P11 25 28 30 PAP 2830 P11 28 32 30 PAP 3020 P11 30 34 20 PAP 3030 P11 30 34 30 PAP 3040 P11 30 34 40 PAP 3520 P11 35 39 20 PAP 3530 P11 35 39 30 PAP 4050 P11 40 44 50 PAP 4550 P11 45 50 50 PAP 5030 P11 50 55 30 PAP 5040 P11 50 55 40 PAP 5060 P11 50 55 60 PAP 5540 P11 55 60 40 PAP 6040 P11 60 65 40 PAP 6050 P11 60 65 50 PAP 6060 P11 60 65 60 PAP 6070 P11 60 65 70 PAP 7050 P11 70 75 50 PAP 7070 P11 70 75 70 PAP 80100 P11 80 85 100 PAP 8060 P11 80 85 60 PAP 90100 P11 90 95 100 PAP 9060 P11 90 95 60 - Flange liners PAF.. KS PERMAGLIDE P11
Description Di Do B PAF 06080 P11 6 8 8 PAF 08055 P11 8 10 5,5 PAF 08095 P11 8 10 9,5 PAF 10070 P11 10 12 7 PAF 10120 P11 10 12 12 PAF 10170 P11 10 12 17 PAF 12070 P11 12 14 7 PAF 12090 P11 12 14 9 PAF 12120 P11 12 14 12 PAF 15120 P11 15 17 12 PAF 15170 P11 15 17 17 PAF 16120 P11 16 18 12 PAF 18100 P11 18 20 10 PAF 18220 P11 18 20 22 PAF 20115 P11 20 23 11,5 PAF 20165 P11 20 23 16,5 PAF 25215 P11 25 28 21,5 PAF 30160 P11 30 34 16 PAF 30260 P11 30 34 26 PAF 35260 P11 35 39 26 PAF 40260 P11 40 44 26 - Thrust washers PAW.. KS PERMAGLIDE P11
Description Di Do S3 PAW 12 P11 12 24 1,5 PAW 42 P11 42 66 2,0 PAW 48 P11 48 74 1,5 PAW 14 P11 14 26 1,5 PAW 28 P11 28 48 1,5 PAW 26 P11 26 44 1,5 PAW 20 P11 20 36 1,5 PAW 22 P11 22 38 1,5 PAW 38 P11 38 62 1,5 PAW 18 P11 18 32 1,5 PAW 32 P11 32 54 1,5 PAW 52 P11 52 78 2,0 PAW 16 P11 16 30 1,5 PAW 10 P11 10 20 1,5 PAW 62 P11 62 90 2,0
More information
Application examples
Take a look at our application examples with KS PERMAGLIDE® plain bearings
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