EPB15 Plastic Plain Bearings
EPB15 Plastic Plain Bearings
Good wear resistance and with low hardness and roughness requirement for the shaft material. The wear resistance of the material will not be weekend even under the dust environment.
Continuous working temperature: -40?~100?;
Maintenance-free dry operation;
Small wear off amount against various shaft materials;
Low water absorption.
The Material Data Sheet
Dynamic friction /steel(dry)
Max. PV (dry)
Max. roatating velocity
Max. oscillating velocity
Max. linear velocity
Compressive strength (Axial)
Max. static pressure of the surface, 20?
Continuous work temperature
Short-time work temperature
Linear coef. of thermal expansion
Moisture absorption RH50/23?
|Max. water absorption, 23?||%||0.5|
PV Value of Bearings
The max PV value of the CSB-EPB15 series bearing is 0.9N/mm2*m/s which determines the load capacity of bearing is inversely proportional to the speed. Please refer to the chart for more detailed information (Graph EPB15-1).
The Relation of Load, Speed and Temperature
CSB-EPB15 allows the Max static load of 70Mpa, The max compressive deformation rate under the max load is listed in Graph EPB15-2, The actual load capacity of bearing is slightly less than 70Mpa, The bearing load is variable against the speed and temperature, Fast speed (Vmax: 1.5m/s) results into higher temperature (Tmax: 100?) which decreases the load capacity of the bearing. Please refer to the Graph EPB15-3 for such variation.
The Friction Factor,Wearing and shaft material
Graph EPB15-4 shows that the friction factor of CSBEPB15 is not sensitive to the operation speed and Graph EPB15-5 shows that the friction factor is CSB-EPB15 is decreased along with the loading increasing and become stable when the loading is over 20Mpa. Graph EPB15-6 tells that the friction factor of CSB-EPB15 is also not sensitive to the shaft roughness but we still recommend the shaft roughness to be Ra0.3~0.6.
|Friction coef. µ||0.05~0.15||0.09||0.04||0.04|
Wearing and shaft material
Graph EPB15-7 shows that the wearing of CSB-EPB15 is sensitive to different materials under rotation operation with the loading of 2Mpa. It is suitable for hardened shaft, high speed steel shaft and hardened chrome steel shaft in the rotation operation. Hardened chrome steel shaft is the best choice for CSB-EPB15(Graph EPB15-8). The wearing will be decreased as long as the loading increasing.
CSB-EPB15 is good at chemical resistance against weak acidic medium and various kinds of lubricants.
The water absorb rate of CSB-EPB15 is 1.3% under the atmospheric pressure while it is 6.5% when the material is immerged into water. The application environment has to be considered because of its water absorb properties.
CSB-EPB15 can maintain its color unchanged when it is exposed into the UV ray. The material performance stays stable.
CSB-EPB15 The Interfit Tolerance
Tolerance after fit E10
Fit Housing H7
Fit Shaft h9
CSB Plastic is one of the leading China epb15 plastic plain bearings manufacturers and suppliers, and also a professional epb15 plastic plain bearings factory and company, we are always at your services.