DFB500 BEARING RANGE

DFB 500 material consists of highly wear resistant copper cast alloy whose sliding surface are evenly provided with a certain percentage of solid lubricant plugs according to work condition, high-strength copper alloy provides a high load-bearing capacity & the solid lubricant can be formation of low friction film. Under dry running conditions the bearing surface is designed with thick running-in film which enables the solid lubricant to be transferred to the immediate moving surface, provide enough lubrication.

Technical Data

Material Options
Corresponding Material
Code		 Type
DFB 500-D1 DFB 500-D2 DFB 500-D3 DFB 500-D4 DFB 500-D5 DFB 500-D6
GB1776/87 - General ZCuZN25
Al6Fe3Mn3		 ZCuZN25
Al6Fe3Mn3		 ZCuAl9Fe4
Ni4Mn2		 GCr15 HT250 ZCuSn10
Zn2
ISO 1338 - International
ISO 1338		 GCuZn25
Al6Fe3Mn3		 GCuZn25
Al6Fe3Mn3		 GCuAl10
Fe3Ni5		 B1 ___ GCuSn10
Zn2
DIN - Germany Std G-CuZn25
Al5		 G-CuZn25
Al5		 G-CuAl10
Ni		 100Cr6 ___ G-CuSn10
Zn
JIS - Japan Std HBsC4 HBsC4 AIBC3 SUJ2 FC250 BC3
ASTM/ UNS - USA Std C86300 C86300 C95500 52100 Class40 C90500
BS - English Std HTB2 HTB2 AB2 ___ ___ G1
         
Tech & Mechanical Specific
Performance Index Type
DFB 500-D1 DFB 500-D2 DFB 500-D3 DFB 500-D4 DFB 500-D5 DFB 500-D6
Max Dynamic Load Capacity - P (N/mm²) 100 150 50 200 15 70
Max Sliding Speed - V (m/min) 15 10 20 5 15 10
Max PV Value Limit - PV (N/mm² * m/min) 200 200 200 150 40 200
Density - ρ(g/cm³) 8.0 8.0 7.6 7.8 7.3 8.8
Tensile Strength -
(N/mm²)		 > 750 > 780 > 500 > 1500 > 250 > 350
Elongation - (%) > 12 > 4 > 10 ___ ____ > 8
Hardness – HB > 210 > 250 > 150 HRC > 55 > 160 > 80
Max Operating Temp - ⁰C 300 300 400 300 400 400
Coefficient Of Friction - µ With Lubrication - 0.03 & Dry Operation - 0.16
   
Alloy & Chemical Composition
Chemical Elements Type
DFB 500-D1 DFB 500-D2 DFB 500-D3 DFB 500-D4 DFB 500-D5 DFB 500-D6
Cu (%) Rest Rest Rest     Rest
Sn (%) ___ ___ ___ ___ ___ 10
Zn (%) 25 25 ___ ___ ___  
Ni (%) ___ ___ 4   ___ ___
Al (%) 6 6 9   ___ ___
Fe (%) 3 3 4 Rest ___ ___
Mn (%) 3 3 2 0.20 ~ 0.40 ___ ___
Cr (%) ___ ___ ___ 1.30 ~ 1.65 ___ ___
C (%) ___ ___ ___ 0.95 ~ 1.05 ___ ___
Si (%) ___ ___ ___ 0.15 ~ 0.35 ___ ___