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Jiashan Bangsheng Bearing Co., Ltd.
Add:No. 38, Jinjia Avenue, Jiashan County, Zhejiang Province
Tel:86-573-84252262
Fax:86-573-84252262
Mob:15067330806 13957343967
Url:www.jsbszc.com
 
  Product
Sf-1wc composite thrust gasket
Description  
MATERIAL STRUCTURE
1. The mixture of modified polytetrafluoroethylene (PTFE) and lead (PB) is 0.01-0.03mm, which is a kind of wear-resistant material. In the process of operation, a transfer film can be formed to protect the counter grinding shaft.
2. Copper powder layer of 0.2 ~ 0.3mm can improve the bond strength of PTFE / Pb and steel plate, and has good bearing capacity and wear resistance. At the same time, copper is a good heat conducting material, which can quickly transfer the heat generated in the bearing operation process.
3. Low carbon steel 0.7 ~ 2.3mm, improve bearing capacity and heat transfer.
4. Copper / Tin Electrodeposition, copper coating 0.008mm, tin coating 0.005mm, so that the bearing has a good corrosion resistance function.
主要参数 TECHNICAL DATE
Dead load
250N/mm2
friction coefficient
0.03~0.20
Maximum load
Low speed operation
140N/mm2
Maximum linear speed
dry friction
2m/s
 
Rotation and swing
60N/mm2
 
Fluid lubrication
5m/s
Maximum PV value
Intermittent operation
3.6N/mm2.m/s
Thermal conductivity
42W(m.K)-1
 
Long term operation
1.8N/mm2.m/s
Coefficient of linear expansion
11x11-6K
Service temperature
-195℃~+280℃
APPLICATION CHARACTER

1. No oil lubrication or less oil lubrication, suitable for the occasions where oil cannot be added or it is difficult to add oil, it can be used without maintenance or less maintenance;
2. Good wear resistance, small friction coefficient and long service life;
3. It can be used in the range of - 195 ℃ ~ + 280 ℃;
4. Good running in performance, low noise, no pollution;
5. Thin wall structure, light weight, can reduce mechanical volume;
6. In operation, it can form a transfer film, play a role in protecting the grinding shaft, without shaft biting;
7. The hardness requirement of the grinding shaft is low, and the shaft without quenching and tempering treatment can be used, thus reducing the machining difficulty of relevant parts;
8. No water absorption, oil absorption, small thermal expansion coefficient, good heat dissipation, stable size;
9. The back of the steel can be plated with many metals, so it can be used in corrosive media without rusting;
At present, it has been widely used in the sliding parts of various machines, such as automatic mechanical equipment (stretching, swinging, sliding, bending, turning, turning parts), oil pressure cylinder guide sleeve, gear pump, textile machinery, vending machine, plastic molding machine, die-casting machine, rubber machinery, tobacco machine, fitness equipment, office machinery, hydraulic carrier, locomotive, motorcycle, agricultural and forestry machinery And so on.

SF-1WC Standard dimensions of gasket series bearings(SF-1、SF-1T、SF-1P、SF-1D、SF-1B、SF-1S)
 
Axle diameter
Code name
Gasket dimensions
Installation dimension
d +0.25
D -0.25
T -0.05
M ±0.12
h+0.4
+0.1
T±0.2
D1+0.12
8
WC10
SF-1
10
20
1.5
15
1.5
1
20
10
WC12
SF-1
12
24
18
24
12
WC14
SF-1
14
26
20
2
26
14
WC16
SF-1
16
30
23
30
16
WC18
SF-1
18
32
25
32
18
WC20
SF-1
20
36
28
3
36
20
WC22
R-1
22
38
30
38
22
WC24
RCB-1
24
42
33
42
24
WC26
SF-1
26
44
35
44
26
WC28
SF-1
28
48
38
4
48
30
WC32
RCB-1
32
54
43
54
36
WC38
SF-1
38
62
50
62
40
WC42
SF-1
42
66
54
66
46
WC48
SF-1
48
74
2
61
1.5
74
50
WC52
SF-1
52
78
65
78
60
WC62
SF-1
62
90
76
90
 
 
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Add:No. 38, Jinjia Avenue, Jiashan County, Zhejiang Province  Tel:86-573-84252262  Fax:86-573-84252262