DNB05 Solid lubricants-embedded bronze bearing-DU BUSH, spring bush, bronze bushing, SLIDING BEARING, CHINA BEARING, THRUST WASHER, THRUST WASHER, needle bearing

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Suitable for middle load, middle speed application DNB05 is oilless bearing material, based on bronze (gunmetal) base with solid lubricants embedded therein. l Self-lubricated and maintenance-free, suitable for middle load, middle velocity application. l Can be applied at high working temperature. l Excellent chemical attack resistance and corrosion resistance.
Features	lSelf-lubricating bearing with high performance for middle loads and middle velocity operations lUsable at high temperature lExcellent resistance to chemical attack and corrosion lAvailable in standard products with various sizes

Values in ( ) are of static allowable pressure.

Indicates static allowable pressure either without sliding or when sliding with extremely low velocity less than 0.0017m/s {0.1m/min}.

Mechanical Property			#500B₁	#500B₂
Density	----------	g/cm³	8.8	8.7
Tensile strength	JIS Z 2241	N/mm²{ kgf/mm²}	195{20}	245{ 25}
Tensile break elongation	JIS Z 2241	%	15	15
Compressive strength	----------	N/mm²{ kgf/mm²}	95{9.5}(Note 1)	130{13}(Note 1)
Impact strength	JIS Z 2242	J/cm²{ kgfm/cm²}	10{1}	-----
Hardness	JIS Z 2243	----------	HB60	HB70
Modulus of longitudinal elasticity	JIS Z 2241	N/mm²{ kgf/mm²}	83000{8500}	103000{10500}
Coefficient of linear expansion	----------	×10^-5℃^-1	1.8	2.0
Thermal conductivity	----------	W/m℃{cal/sec℃cm}	71.1{0.17}	75.3{0.18}

* Values above are nominal values, not standard values.
(Note 1) Compressive proof stress: 0.2%

Test data

Journal rotating load test

Mating material:	S45C
Load:	Load is increased with an increment of 0.98N/mm²{10kgf/cm²} at every 5 minutes intervals
Velocity:	0.083m/s {5m/min}
Lubrication:	Self-lub

Standard Product INDEX

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