iglide® P210 - Material data

General features	Unit	iglide® P	Test method
Density	g/cm³	1.40
Color		Yellow
Max. humidity absorption at 73°F/50% R. H.	% weight	0.3	DIN 53495
Max. water absorption	% weight	0.5
Coefficient of surface friction, dynamic, against steel	µ	0.07 - 0.19
PV values max. (dry)	MPa x m/s	0.4

Mechanical properties	Unit	iglide® P	Test method
Bending E-module	MPa	2.500	DIN 53457
Tensile strength at +68 °F	MPa	70	DIN 53452
Compressive strength	MPa	50
Maximum recommended surface pressure (68° F)	MPa	50
Shore D hardness		75	DIN 53505

Physical and thermal properties	Unit	iglide® P	Test method
Max. long term application temperature	°F	+212
Max. short term application temperature	°F	+320
Lower application temperature	°F	-40
Heat conductivity	[W/m x K]	0.25	ASTM C 177
Coefficient of thermal expansion (at +73°F)	[K^(-1) x 10^(-5)]	8	DIN 53752

Electrical properties	Unit	iglide® P	Test method
Specific forward resistance	Ωcm	> 10^12	DIN IEC 93
Surface resistance	Ω	> 10^11	DIN 53482

Figure 01: Permitted pv-values for iglide® P210 bearings with 1 mm wall thickness in dry operation against a steel shaft, at +68°F, installed in a steel housing.

iglide® P210 plain bearings provide users with versatile all-round bearings, which have demonstrated above average service life, primarily in pivot applications at medium loads of up to 20 MPa.

Mechanical properties
Maximum recommended surface pressure represents a mechanical material parameter. Tribological conclusions cannot be drawn from it. With increasing temperatures, the compressive strength of iglide® P210 plain bearings decreases. Fig. 02 clarifies this connection.

Fig. 03 shows the elastic deformation of iglide® P210 during radial loading. Under the maximum recommended surface pressure of 50 MPa, the deformation at room temperature amounts to less than 3 %.

Permitted surface speeds

Plain bearings made of iglide® P210 are maintenance-free bearings developed for low to medium surface speeds. The maximum values stated in the Table 02 can be attained only with very low surface pressure. The specified maximum speed is the speed at which the long-term permitted temperature is reached by an increase in heat through friction.

m/s	Rotary	Oscillating	Linear
Constant	1	0.7	3
Short-term	2	1.4	4

Surface speedp x v value, lubrication

Temperatures

With its extreme long-term application temperature of +212°F, iglide® P210 is suitable for a wide range of applications. If still higher temperatures are required, the best-seller iglide® G with 266°F upper long-term temperature is available. The temperatures prevailing in the bearing system also have an influence on the bearing wear. Rising temperatures mean higher wear. An additional securing is recommended at temperatures higher than +122°F.

iglide® P	Application temperature
Lower	-40°F
Upper, long-term	+212°F
Upper, short-term	+320°F
Secure axially in addition	+122°F

Temperature

Friction and wear

Just like the wear resistance, the coefficient of friction µ also alters with the load (Fig. 04 and 05).

iglide® P	Dry	Grease	Oil	Water
Coefficients of friction µ	0.08 - 0.23	0.09	0.04	0.04

Coefficients of frictionWear resistance

Figure 04: Coefficients of friction dependent on the surface speed, p = 1 MPa

Figure 05: Coefficients of friction dependent on the load, v = 0,01 m/s

Shaft materials
Figure 06 displays a summary of the results of tests with different shaft materials, which were conducted with iglide® P210 plain bearings. In rotating movements below 1 MPa radial load, the wear of iglide® P210 is generally very low. The wear is significantly higher only in combination with St37 shafts. In general, the wear during rotation is higher than for a swivel application with the same load. This reverses only from loads of 25 MPa (Fig. 07).

Shaft materials

Material resistance

Chemical resistance

iglide® P210 bearings have a good resistance against chemicals. They are resistant to most lubricants. iglide® P210 is not affected by most weak organic and inorganic acids.

Radioactive rays

Bearings made of iglide® P210 are conditionally usable under radioactive radiation. They are resistant up to a radiation intensity of3 x 10² Gy.

UV-resistant

iglide® P210 plain bearings have comparatively good UV resistance.

Vacuum

The existent humidity of iglide® P210 bearings degasses in the vacuum. The use in vacuum is possible only limited.

Medium	Resistance
Alcohols	+
Hydrocarbons	-
Greases, oils without additives	+
Fuels	+
Diluted acids	0
Strong acids	-
Diluted bases	-
Strong bases	-
+ resistant 0 conditionally resistant - non-resistant
All specifications at room temperature[+68°F] Table 05: Chemical resistance of iglide® P

Electrical properties

iglide® P bearings are electrically insulating.

Specific forward resistance	Surface resistance
> 10^12 Ωcm	> 10^11 Ω

Moisture absorption

The humidity absorption of iglide® P210 bearings amounts to about 0.3 Wt.-% in standard climatic conditions. The saturation limit in water is 0,5 %. This minor humidity absorption is clearly below the values of iglide® G.

Maximum moisture absorption
by +73 °F/50 % r. F.	0,3 Wt.-%
Max. water absorption	0,5 Wt.-%
Table 06: Moisture absorption

Installation tolerances

iglide® P210- bearings are standard bearings for shafts with h-tolerance (recommended minimum h9). The bearings are designed for press-fit in a housing with h7 tolerance. After the installation in a housing with nominal diameter, the inner diameter of the bearing automatically adjusts to the E10 tolerance. In certain dimensions the tolerance in dependence on the wall thickness deviates from this (See delivery program )

Diameter d1 [mm]	Shaft h9 [mm]	iglidur® P210 E10 [mm]	Housing H7 [mm]
Up to 3	0 - 0,025	+0,014	0 +0,010
> 3 to 6	0 - 0,030	+0,020	0 +0,012
> 6 to 10	0 - 0,036	+0,025	0 +0,015
> 10 to 18	0 - 0,043	+0,032	0 +0,018
> 18 to 30	0 - 0,052	+0,040	0 +0,021
> 30 to 50	0 - 0,062	+0,050	0 +0,025
> 50 to 80	0 - 0,074	+0,060	0 +0,030
> 80 to 120	0 - 0,087	+0,072	0 +0,035
> 120 to 180	0 - 0,100	+0,085	0 +0,040
Table 07: Important tolerances iaw. ISO 3547-1 after press-fitting

Tolerances