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Jiashan SEBO Trading Co.,Ltd. supply slide bearings and wear plate, and also supply the Spherical Plain Bearings, Rod Ends, Bearing Housings and needle bearing.
SE-500 Solid-lubricating Inlaid Bushing
SE-010 Metal-Polymer Composite Bushing
SE-090 Bronze
Wrapped Bushing
SE-020 Marginal Lubrication Bushing
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Products List
SE-010 Metal-Polymer Composite Bushing
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SE-01F
SE-01WC
SE-01SP
Products
Applications
Metal-polymer self-lubricating composite materials consist of metal backing sintered porous bronze with PTFE polymer as working layer. The metal backing provides mechanical strength, while the bronze sintered layer provides a strong mechanical bonding between the backing and the bearing lining, the PTFE polymer offers exceptional low friction even under dry condition and the thermoplastic polymer is generally designed to operate with marginal lubrication. The construction promotes dimensional stability and improves the thermal conductivity. This material meets the demands for longevity, speed and temperature criteria with or without lubrication.
Agricultural machinery: tractors, combine harvesters, crop sprayers, bulldozers, graders, etc.
Automotive industry: power steering pump, steering gear thrust washers, disc brakes, shock absorbers, hinges, wiper, chair recliners, air valves and solenoid valves, etc.;
Business machines: duplicator, fax machine, automatic printing devices, mail processing machinery...
Hydraulics and valves: pumps including gear, rotary, water, axial piston, and other types, ball, butterfly, poppet steam, and other valves and valve trunnions...
Home appliances: tape recorders, refrigerators, air conditioners, cleaners, polishers, sewing machines, ovens, dishwashers, clothes washing machines...
And materials handling, marine engine, packaging, textile equipment, tools...etc.
Material Structure
Wear-resisting Performance
Factor
Note: Various materials are suitable for SE-010 Series products according to different working conditions, such as bronze backing (SE-01B), stainless steel backing (SRI01S) and lead-free material (SE-01W).
1. "Running-in" phrase: PTFE compound on the bushing is transferred to its mating surface and forms a lubricating film. At this phase, the friction coefficient is bigger, thus the abrasion pace is very quick. See the curve showed in area I of the graph.
2. "Stabilization" abrasion phrase: After the "Running-in
phase", the friction happens between PTFE and PTFE, thus the friction coefficient is smaller and keeps steady. As a result, the wear rate is low and steady. See the curve showed in areaⅡof the graph.
3. "Sharp" abrasion phrase: As PTFE in the porous layer is slowly consumed up, not enough lubricant can be supplied to the gliding media. Friction coefficient and wear rate will rapidly rise. When 70% of the bronze surface is exposed, service life of SRI01 closes to its end. See the curve showed in area Ⅲof the graph.
SE-010 is of excellent anti-abrasion performance,mainly due to the particular molecule structure of PTFE. The abrasion process can be generally divided into three phases, so there kinds of friction coefficient. See the right graph:
1). PV Value
PV value is an effective criterion to calculate the service life of SE-010. If there is need to prolong the service Life, PV value must be reduced.
2). Ambient Temperature
The higher the working temperature is, the shorter the life of the products would be.
3). Quality of the Mating Surface
Service life BKL-1 can be obviously prolonged if its mating axis is made by alloy steel or is plated by hard chrome and with surface Roughness Ra=0.4~0.63
Besides the standard products displayed in the list of this catalogue. We can also supply non-standard products or develop according to customer design.
SE-010
1. PTFE/Fibre mixture thickness 0.01〜0.03mm
2. Sintered bronze powder thickness 0.20-0.35mm
3. Low-carbon steel
4. Copper/Tin plating thickness 0.002mm
SE-01B
1. PTFE/fibre mixture thickness 0.01〜0.03mm
2. Sintered bronze powder thickness 0.20-0.35mm
3. Bronze backing
SE-01D
1. PTFE/Polymer fibres mixture thickness 0.01〜0.03mm.
2. Sintered bronze powder thickness 0.20-0.35mm
3. Steel backing,
4. Copper/Tin plating thickness 0.002mm
SE-01S
1. PTFE/Fibre mixture thickness 0.01 〜0.03mm
2. Sintered bronze powder thickness 0.20-0.35mm
3. Stainless steel
4. Copper/Tin plating thickness 0.002mm
SE-010 Tech. Deta
The use of parameters
SE-01B
SE-01D
SE-01S
PTFE+sinter bronze+Steel back+Tin/Cu plate
PTFE+sinter bronze+bronze back+Tin/Cu plate
PTFE+sinter bronze+Stainless Steel back+Tin/Cu plate
Parameters
Load capacity(Dynamic)
140 N/mm²
140 N/mm²
140 N/mm²
140 N/mm²
Load capacity(Static)
250 N/mm²
250 N/mm²
250 N/mm²
250 N/mm²
Oscillating
60 N/mm²
60 N/mm²
60 N/mm²
60 N/mm²
Speed limit(Oil)
5 m/s
5 m/s
3 m/s
4.5 m/s
Friction Coef.
0.04~0.20
0.03~0.18
0.04~0.20
0.04~0.20
PV limit(Dry)
3.6 N/mm².m/s
4.3 N/mm².m/s
3.8 N/mm².m/s
3.6 N/mm².m/s
PV limit(Oil)
50 N/mm².m/s
60 N/mm².m/s
50 N/mm².m/s
50 N/mm².m/s
Temp. Limit
-295℃ ~ +280℃
-195℃ ~ +300℃
-195℃ ~ +280℃
-295℃ ~ +270℃
Thermal conductivity
13 W/m·k
18 W/m·k
16 W/m·k
16 W/m·k
Linear expansion
11×10-6/K
21×10-6/K
15×10-6/K
15×10-6/K
SE-010
PTFE/Polymer fibres mixture+sinter bronze+steel back+Tin/Cu plate
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