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Variety and characteristics of mechanical parts
Variety Mechanical properties and physical properties
Apparent density g/m3(reference) Apparent Rockwell hardness Pull strength N/mO Elongation percentage (reference) Impact value J/cO(reference)
PF10 6.8 HRF50 150 3 10
PFP16 6.8 HRB50 200 4 15
PF303 6.6 HRF60 200 2 5
PF372 6.8 HRB50 350 - 5
PF402 7.0 HRB70 400 - 5
PF523 6.8 HRB60 300 2 10
PF554 7.0 HRB65 500 1 20
PF556 7.0 HRB60 500 1 15
PB20 7.0 HRB60 150 3 10

 

varieties and features of iron-copper bearing Features
CATEGORY SINTALLOY Mechanicalfeatures and physical features
Appearance density
g/m3(reference)		 OIL CONTENT Vol% Intensity of pressure ring N/m㎡ Appearance hardness HRH

thermal expansion * 10-6℃
(reference)

 ·BF10 is widely used as a standard material of pure iron.
·BF303 has a better fusion performance and is used for general bearing
·BF320 is the intermediate material of iron and copper , and it is also can reduce the cost of copper materials
Pure iron

 BF10

5.7~6.3

﹥18

 ﹥200

65~85

11~13

Iron-copper BF303 5.7~6.3 ﹥18 ﹥200 65~85 12~14
Iron-copper BF320 5.9~6.5 ﹥18 ﹥170 70~90 12~15
Bronze BB20 6.6~7.1 ﹥18 ﹥150 45~65 16~18 ·BB20 is the standard material of copper.
·BB205 is the material that can be used under high-speed environment and it is also can be made to thickness reaches 0.8mm
·BB205-2 is the material that can improve sliding property.
Bronze-graphite BB205 6.8~7.3 ﹥11 ﹥200 45~65 17~19
Bronze-graphite BB205-2 6.8~7.3 ﹥11 ﹥150 45~65 17~19
Bronze-graphite BB211-3 6.3~6.8 ﹥5 ﹥170 35~55 15~18 This is the material that special lubricant is dispersed and can be used from low speed to high speed

 

permissible operating conditions
CATEGORY BB20
BB205		 BB211-3 BF10 BF303 BF320
Permissible load （P）MPa 2 3 3 4 2
Permissible speed （V）m/min 200 250 80 90 100
Permissible PV value MPa.m/min 100 130 120 120 130

 
     
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