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




SF-1B BRONZE BUSHING

Structure


1.PTFE with Pb 0.01~0.03mm
2.Porous bronze 0.2~0.3mm
3.Bronze backing 0.7~2.3mm
SF-1B is of high safety factory, and is particularly appropriate for high temperature environment where no oil is efficient and where the machine must be under successive long period working condition. This is widely used in steel metallurgy industry such as bushes for roller grooves of successive casting machines. Cement grouting pumps and screw conveyers of cement. It can also be composed in steel housing or fabricated into flanged bushes, which can move both in radial and in axial directions.

Tech.data
Load capacity 140N/m㎡
Temperature limit -190℃~＋300℃
Speed limit 5m/s
Friction clef 0.04-0.18
PV limit (dry) 4.3N/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
medium
NO
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
60
4.3
5.0
-195~
+300
0.04-0.18
18
21﹡10
﹣6﹡K﹣1

Friction & wear test
time
test condition
friction
coef.
temp.
(℃ )
wear
(mm)
lubricate
speed
press
3hr
dry
0.4m/s
3.5N/m㎡
0.151
83
0.014

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