Products list
SF-1 Series
SF-2 Series
JF Series
JDB Series
FB Series
FZ Series
FD Series
FR Series
FU Series




SF-1S STAINLESS STEEL
BUSHING

Structure



1.PTFE with fibre 0.01~0.03mm
2.Porous bronze 0.2~0.3mm
3.Stainless steel backing 0.7~2.3mm
SF-1S is of oil resistant, acid resistant, alkali-resistant and seawater resistant. Moreover, there is no lead in the PTFE surface layer, and so is particularly fit for bushings in foodstuff machines, alkali flow meters, pumps motion elements in pharmaceutical machines, printing machines chemical engineering machines and other ocean industry. This is a triple layers composites bush, the base material being a bronze plate and a film of heat resistant power filled PTFE being calendared onto the sintered spherical bronze interlayer.

Tech.data
Load capacity 140N/m㎡
Temperature limit -195℃~＋270℃
Speed limit 4.5m/s
Friction clef 0.04-0.20
PV limit (dry) 3.6N/m㎡.m/s
PV limit (oil) 50N/m㎡.m/s

Chemical characteristics
in
air
in
acuum
in
water
in
vapor
weak
acid
medium
acid
strong
acid
in
alkali
OK
OK
OK
OK
OK
MEDIUM
NO
OK

Physical characteristics
load capacity
PV　limit
speed limit
(inoil)
m/s
Temp. limit
(℃)
friction coef.
thermal
conductivity (WMK)
linear
expansion
static N/m㎡
dynamic N/m㎡
oscillating N/m㎡
oil
N/m㎡
.m/s
dry
N/m㎡
.m/s
250
140
60
50
3.6
4.5
-195~
+270
0.04-0.2
16
15*10﹣6*K﹣1

Friction & wear test
time
test condition
friction
coef.
temp.
(℃ )
wear
(mm)
lubricate
speed
press
3hr
?
0.4m/s
3.5N/m㎡
0.117
67
0.008


Copyright 2004, All rights reserved. Tengfei Oilless Bearing Factory.
Factory Address: Fanxing Road, Fanjing Industrial Garden, Ganyao Town, Jiashan,Zhejiang,China.
Export Department Address:Unit 219, Yugu Road 147,Hangzhou, China.
Tel:86-571-87510719 Fax:86-571-87951484 Email:sales@tf-bearing.com