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




SF-1D HYDRAULIC BUSHING

Structure

1.PTFE with oil fibre 0.01~0.03mm
2.Porous bronze 0.2~0.3mm
3.Steel backing 0.7~2.3mm
4.Tin-plating 0.005mm or copper plating 0.008mm
SF-1D hydraulic bushing is developed on the basis of SF-1P and meanwhile considering the
motion way of oil pump and damper. It is the substitute of and parallels in performance with abroad DP4, in addition to covering the same usage of SF-1P, SF-1D in particular fits frequently reciprocating motion with a high side force. It is a tendency to gradually replace SF-1Pwith SF-1D; the latter will cover a wide application in automobile, motor damper and oil pumps EST.

Tech.data
Load capacity 140N/m㎡
Temperature limit -195℃~＋270℃
Speed limit 3m/s
Friction clef 0.04-0.20
PV limit (dry) 3.8N/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
BAD
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
50
3.8
3.0
-195~
+ 270
0.04-0.18
16
15﹡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㎡
0.175
98
0.012

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