Product Features

● This material is developed against the requirement of wear resistance and economic cost for cost effective and big quantity comsuming applications

● Continuous working temperature: -40℃/+80℃

● Suitable for most of average and low load

● Maintenance-free dry operation

● Low cost for high quantities

Material properties	Standard	Unit	CSB-EPBH
General properties
Color	-	-	Black
Density	ISO1183	g/cm³	1.43
Max. moisture absorption, 50%RH	ISO62	%	0.3
Max. water absorption	ISO62	%	1.2
Coefficient of sliding friction(steel)	ITS025	µ	0.05-0.20
Max. PV value	ITS026	N/mm²×m/s	0.30
Mechanical properties
Flexural modulus	ISO178	MPa	2000
Flexural strength	ISO178	MPa	60
Max. static load	ITS027	MPa	30
Max. dynamic load	ITS028	MPa	12
Shore hardness	ISO868	D	74
Physical and thermal properties
Long-term application temperature	ITS029	℃	+80
Short-term application temperature	ITS029	℃	+120
Lowest application temperature	ITS029	℃	-40
Thermal conductivity	ISO22007	W/m/K	0.20
Coefficient of thermal expansion	ISO11359	K^-1×10^-5	10
Flammability	UL94	Class	HB
Electrical properties
Volume resistance	IEC60093	Ω·cm	>10¹³
Surface resistance	IEC60093	Ω	>10¹²

*ITS: CSB company's internal test standards. **Test temperatures are 23℃ unless otherwise stated.

Sleeve bearing

Flange bearing

Thrust washer

EPBH Plastic plain bearings

Part no.:

d1 [mm]：

d2 [mm]：

L_h13 [mm]：

d3_d13 [mm]：

T [mm]：

d1-max. [mm]：

d1-min. [mm]：

d2-max. [mm]：

d2-min. [mm]：

T max. tolerance [mm]：

T min. tolerance [mm]：

Max. shaft [mm]：

Min. shaft [mm]：

Max. housing [mm]：

Min. housing [mm]：

*Lead time [wsk]：

Download CAD

Cart

Shopping

Dimensions

▊ PV value

The max PV value of the CSB-EPBH plastic bearings is 0.3N/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 EPBH-1).

EPBH_01-Plastic plain bearings PV value.jpg

▊ Load, speed and temperature

CSB-EPBH allows the Max static load of 30Mpa, The max compressive deformation rate under the max load is listed in Graph EPBH-2, The actual load capacity of bearing is slightly less than 30Mpa, The bearing load is variable against the speed and temperature, Fast speed (Vmax: 0.8m/s) results into higher temperature (Tmax: 80℃) which decreases the load capacity of the bearing. Please refer to the Graph EPBH-3 for such variation.

EPBH_02-Plastic plain bearings load.jpg EPBH_03-Plastic plain bearings load and tepmerature.jpg

▊ Friction factor, wear and shaft material

▊ Friction factor

CSB-EPBH friction factor is not sensitive to the operation speed and bearing loading (see Graph EPBH-4 and Graph EPBH-5). The above features are the most common considerations for the bearing material selection. The friction of CSB-EPBH could be maintained at a relatively lower level so that the good wearing features are guaranteed. From the Graph EPBH-6, we could see that the friction factor is variable against the changing of shaft roughness. The recommended shaft roughness is Ra0.3~0.5.

CSB-EPBH	Dry	Grease	Oil	Water
Friction coef. μ	0.05~0.20	0.09	0.04	0.04

EPBH_04-Plastic plain bearings friction and speed.jpg EPBH_05-Plastic plain bearings friction and load.jpg EPBH_06-Plastic plain bearings friction and surface roughness of shaft.jpg

▊ Wearing and shaft material

The shaft material is an important media for the bearing wearing but CSB-EPBH is suitable for almost all kinds of shaft materials. Graph EPBH-7 and Graph EPBH-8 show that the wearing feature of CSB-EPBH is excellent when the shaft material are hardened chrome steel or hardened steel.

EPBH_07-Plastic plain bearings wear and shaft materials.jpg EPBH_08-Plastic plain bearings wear and load.jpg

▊ Chemical resistance

CSB-EPBH is good at chemical resistance against mild base, weak acidic medium and various kinds of lubricants.

▊ Water absorption

The moisture absorption of CSB-EPBH plastic bearings is 0.3% in standard atmosphere. The max. water absorption is 1.2% in water. These values are so low that design changes due to absorption are only necessary in extreme applications.

EPBH_09-Plastic plain bearings moisture absorption.jpg

▊ UV resistance

CSB-EPBH can maintain its color unchanged when it is exposed into the UV ray. The hardness, Compressive strength and wear resistance of the material is also stable under such condition.

▊ Installation tolerances

CSB-EPBH Tolerances after pressfit

Diameter [mm]	CSB-EPBH E10 [mm]	Housing H7 [mm]	Shaft h9 [mm]
>0～3	+0.014～+0.054	0～+0.010	0～-0.025
>3～6	+0.020～+0.068	0～+0.012	0～-0.030
>6～10	+0.025～+0.083	0～+0.015	0～-0.036
>10～18	+0.032～+0.102	0～+0.018	0～-0.043
>18～30	+0.040～+0.124	0～+0.021	0～-0.052
>30～50	+0.050～+0.150	0～+0.025	0～-0.062
>50～80	+0.060～+0.180	0～+0.030	0～-0.074
>80～120	+0.072～+0.212	0～+0.035	0～-0.087
>120～180	+0.085～+0.245	0～+0.040	0～-0.100

Medium	EPBH bearings resistance
Alcohol	Resistant
Hydrocarbons	Resistant
Greases. oils	Resistant
Fuels	Resistant
Diluted acids	Conditionally resistant
Strong acids	Not resistant
Diluted alkalis	Resistant
Strong alkalis	Conditionally resistant

CSB® Bearing Material Chemical Resistance

Please select bearing material and medium...

CSB® bearing material chemical resistance data is a comparison test result of the CSB chemistry laboratory using laboratory specimens or similar chemicals at room temperature 23 ℃, without considering the impact of other temperatures and chemical medium mixtures on the chemical resistance of CSB® bearing materials ; Therefore, this data can only act as a reference. CSB® recommends that the chemical resistance of actual parts should be tested under application conditions and verify the suitability of the bearings.

CSB-EPBH Plastic Plain Bearings 1925

Time 09-2021

Type PDF

No. CSB/CAT.062E

Size 587KB

1925

download

CSB-EPB®

Plain bearings finder v2.1

view tools

CSB-EPB® Plain bearings finder V2.1

▊CSB-EPB® Plastic Bearings Finder[V2.1] is based on the analysis and calculation of a large number of test data in CSB® laboratory. You can calculations material data by entering parameters such as bearing load, speed, and temperature, and finally output material adaptation data.
▊Because the system calculate and analyze based on lab data, it can't exactly meet the ractual use requirements absolutly. The system data verification has certain limitations; CSB® recommends that the bearing must be tested again to verify whether it meets the actual use requirements.
▊CSB-EPB® Plastic Bearings Finder output data information is only for design reference, and can not be used as the final standard for determining the bearing material conformity, If you have any questions, please contact CSB® sales engineers.

Use Tools

CSB-SFP®

Semi-finished Products Finder V2.0

view tools

DURAPLAS® Semi-finished Products Finder V2.0

▊DURAPLAS® Semi-finished Products Finder[V2.0] is based on the analysis and calculation of a large number of test data in CSB® laboratory. You can calculations material data by entering parameters such as bearing load, speed, and temperature, and finally output material adaptation data.
▊Because the system calculate and analyze based on lab data, it can't exactly meet the ractual use requirements absolutly. The system data verification has certain limitations; CSB® recommends that the products must be tested again to verify whether it meets the actual use requirements.
▊DURAPLAS® Semi-finished Products Finder output data information is only for design reference, and can not be used as the final standard for determining the bearing material conformity, If you have any questions, please contact CSB® sales engineers.

Use Tools

CSB® More products

EPB3G Plastic plain bearings

Optimized for middle load applications. It is suitable for low frequency motion and low cost requirement. Continuous working temperature: -40℃/+100℃. High load capacity. Good economic ratio. Dry operation and...

Details

EPB2D Plastic plain bearings

The combination of middle to low load and low speed application requirement. It is a material without PTFE embedded for the low cost and big quantity demanding. Continuous working temperature: -40℃/+80℃