HCS Hatch Cover Bearing Pad
HCS PTFE Plugged Solid Bronze Slide Bearing Pad for Hatch Cover
is manufactured using high tensile manganese bronze plugged with solid lubricants. Basic bronze alloy material is CuAl10Fe5Ni5 with graphite (SL4) plugged, it is within better performance when used in seawater contacting applications like jet, propeller, ship, boatyard, offshore platform, hydraulic turbine etc.
- Charactor of Bronze base
Bronze material |
CuZn25Al6Fe3Mn3 +SL2 |
CuSn5Pb5Zn5 +SL2 |
CuAl10Fe5Ni5 +SL2 |
CuSn12 +SL2 |
Cu% |
Rest |
85 |
80 |
88 |
Sn% |
-- |
5 |
-- |
12 |
Pb% |
-- |
5 |
-- |
-- |
Zn% |
25 |
5 |
-- |
-- |
Al% |
6 |
-- |
10 |
-- |
Ni% |
-- |
-- |
5 |
-- |
Fe% |
3 |
-- |
5 |
-- |
Mn% |
3 |
-- |
-- |
-- |
Density |
8.2 g/cm3 |
8.8 g/cm3 |
8.5 g/cm3 |
8.8 g/cm3 |
Hardness |
>HB210 |
>HB70 |
>HB150 |
>HB80 |
Max. Load Pressure |
100 N/mm2 |
40 N/mm2 |
50 N/mm2 |
45 N/mm2 |
Max. Linear Speed |
0.5 m/s(dry) |
0.4 m/s(dry) |
0.25 m/s(dry) |
0.5 m/s(dry) |
Max. PV |
1.65 N/mm2 * m/s |
1.00 N/mm2 * m/s |
1.25 N/mm2 * m/s |
1.20 N/mm2 * m/s |
Tensile Strength |
>750 N/mm2 |
>200 N/mm2 |
>500 N/mm2 |
>360 N/mm2 |
Elongation |
>12 % |
>15 % |
>10 % |
>8 % |
Temperature Limit |
-40 ~ +300 oC |
-40 ~ +250 oC |
-40 ~ +400 oC |
-40 ~ +300 oC |
- Charactor of Lubricants
Code |
Material |
Features |
Application |
SL2 |
Graphite composite |
Low friction Chemical resistant Low cost Temperature limit 400oC |
Widely used for machinery |
SL4 |
PTFE+MoS2 composite |
Water contacting lubricating Longer life Temperature limit 300oC |
(Sea) Water lubricating |
Remarks:
HCS in sleeve = SPB-SL4 oilless bronze bush
HCS in flanged = SPF-SL4 oilless bronze bush