David from CanadaOur company import the bronze gleitlager from viiplus china,viiplus professional team makes sure customs clearance is always smooth. They provide an accurate bronze bushing classification, handle all the paperwork,We have received the self-lubricating bronze bushings. They look well done and the high quality.
Valerie from CaliforniaWe import the bronze gleitlager from China to under the incoterm FOB shanghai, sometimes by Air. viiplus is a very good bronze gleitlager supplier, they are very professional and patient, after we inform the new order, they will manufacturer bronze gleitlager in time and give us the schedule , and then we just need to receive the bronze parts
Daisy From GermanyThe best surface finishes for Sleeve Bearing, tighter concentricity, and bronze bushings material uniformity. The good supplier of standard inch and metric sleeve bearings and bushings from china.
ASTM A240 Type 316 With PTFE Coated Bush & Washer
|Place of Origin||made in china|
|Brand Name||CHINA CUSTOM BUSHING SELF-LUBRICATING BEARINGS|
|Certification||BUSHING, DIN 1494 / ISO 3547, LOW-MAINTENANCE|
|Model Number||Dry Bush, Self Lubricating Steel Bushings|
|Minimum Order Quantity||negotiable|
|Packaging Details||EXPORT BUSHING CARTONS WOODEN CASES|
|Delivery Time||7-15 work days|
|Payment Terms||T/T IN ADVANCE, Western Union|
|Supply Ability||Dry Steel Bushing Manufacturers Self Lubricating Plain Bearings Suppliers|
|Material||ASTM A240 Type 316 Backed Bushing||Service||OEM Customized Services|
|Feature||Dry Bush, WITH PTFE COATED||Surface Treatment||Glacier Bushes Copper Plating, Tin Plating Sleeve Bearings|
|Application||Valve Bushings||Size||Metric Size, Or Customize Size|
ASTM A240 316 Backed Bush Washer,
PTFE Coated Bush Washer,
316 Stainless Steel Bushings
Change Your Bearing Now, gleitlagerbuchsen, ASTM A240 Type 316 With Ptfe Coated Bush & ASTM A240 Type 316 With Ptfe Coated Washer, replacement sleeve, Steel Backed Bushings Sliding Plain Sleeve Bearing. Or stainless steel (Aisi 304) bushing with in the internal surface.
Valve bushing can be optionally supplied in a number of different stainless steel backed bushing and bushing materials
ASTM A240 TYPE 316 WITH PTFE COATED BEARING IN VALVE
Our extensive stainless steel bushing inventory not only covers standard industry sizes.
A wide variety of 316 stainless seamless steel bushing options are available to you, such as api, bs, and gb.
Metal Polymer Bearing
The metal-polymer bearing suitable for dry running with a low coefficient of friction, low wear rate, good sliding characteristics, These self-lubricating bearings. They can be used with a rotational, oscillatory, and axial sliding motion.
In order to assure long-life span and superior quality, all PTFE bushings for valves.valves are moulded from pure, virgin PTFE material. Virgin PTFE provides for an excellent chemical resistance and can be used with aggressive media. Typical characteristics of fluoropolymer resins include chemical inertness, exceptional dielectric properties, toughness and flexibility, low coefficient of friction, negligible water absorption and non-stick characteristics. All these properties provide increased protection against permeation of the line media. Further, low coefficient of friction reduces valve operation torque.
The self-lubricating bearings and washers that are specially manufactured with a bonding of a filled PTFE coated fabric on various baking metal layers like: carbonsteel, bronze, stainless steel and Carbon steel. The sliding surface is primarily composed of a filled PTFE coated fabric and other elements toguarantee the highest wear resistance. The stainless steel bushing products find their best usage in slow-movingapplications.
- Excellent corrosion and wear resistance
- Resistance of chemicals including dilute acids and alkalis, petroleum solvents, alcohols, greases and oils
- Resistance to humidity & water
- Resistance to ultra - violet radiation
- Excellent resistance to abrasion
- Impact resistance without chipping or cracking
This ASTM A240 TYPE 316 WITH PTFE COATED BEARING product has a high wear resistance and can work in dirty or abrasive environment.
High-Performance Butterfly Valves - stainless steel bushing
Stainless Steel Bushing is wrapped by steel backing, Sinter bronze layer and PTFE antiwar surface.
As a market leader in ASTM A240 TYPE 316 WITH PTFE COATED BEARING products, Viiplus stocks a wide variety of metals, grades, shapes, and specifications. Whether shopping for commercial or valve bushing, you can be assured to find a wide range of sizes and assortment of grades.
Stainless steel bearing is a special type DU bushing. It takes stainless steel as base material, sintered bronze as middle layer and PTFE as sliding layer. This type self lubricating bearing is also called SS bearing, SS DU bushing, SS DU bearing.
Self-Lubricating Multilayer Composite Bushing
Its material structure is Steel base + Bronze powder + PTFE and filler. It can offer the good properties of self-lubricating, anti-abrasion, low-friction, fully developing the advantages of metal and multi-element polymer. It’s applied to the printing, woven, tobacco and gymnastic machinery, etc.
1. PTFE with Pb 0.01~0.03mm
2. Porous bronze 0.2~0.3mm
3. Stainless steel backing 0.7~2.3mm
STAINLESS STEEL PLATE & SHEET APPLICATIONS:
- Food Processing and handling
- Heat exchangers
- Chemical process vessels
- Pharmaceutical equipment
Inside and outside bearing diameters
Tolerance range of the inside Ø after the assembly in the seat (mm)
Housing/seat tolerance (mm)
Thickness tolerance of the finished bearing (mm)
Maximum opening of the bearing flaps (mm)
Correct size of the shaft to be used with the bearing
Low friction coefficient, good anti-wear, good anti-corrosion
Performs well in mid-acid and strong alkaline condition
|Specific load capacity (static)||≤ 250 [ N/mm² ]|
|Specific load capacity (dynamic)||≤ 140 N/mm² at low speeds|
|Specific load capacity(rotating oscillating)||≤60N/m㎡|
|Friction value||0.08 to 0.2 µ(dry)0.02 to 0.08µ(hydrodynamic)|
|Temperature||-200 to +280 [ °C ]|
|Max. dry running Pv (Short-term operation)||3.6N/m㎡﹡m/s|
|Max. dry running Pv (Continuous operation)||1.8N/m㎡﹡m/s|
|Max. speed (dry running)||2m/s|
|Max. speed (Hydrodynamic operation)||＞2m/s|
+ Fiber + filled PTFE
|SLIDING LAYERS||Special fabric with filled PTFE, colour black-gray, thickness 400 μm, heavy load capacity and self-lubricating under dry operation.|
|SINTERING||Special adhesive between the fabric and the backing steel, thickness 60 μm.|
|SHAFT||The shaft surface finishing, for optimal performance, shall be between 0.40 and 1.60 μm Ra, depending on different application. Hardness 80 – 160 HB5.|
Why choose stainless steel bushing
- Maintenance-free operation
- No lubrication required (PTFE composite)
- Minimum wall thickness, minimum space requirements
- Accommodation of heavy loads
- Wide range of temperatures
- Good sliding properties
- Virtually no stick-slip
- High wear resistance
- No machining required.
PTFE oilless dry bearing bushing is in carbon steel backing with sintered bronze intermediate layer, then PTFE () composite inner coated.
Process & Instrumentation Valve Equipment Stainless steel backed bushing & washer for Oil & Gas and General Industries
ASTM A240 Type 316 With Ptfe Coated Bearing forms available in standard dimensions
|Product name||Metal polymer bearing||Material||PTFE,low carbon steel,sintered bronze|
|Model No.||ASTM A240 Type 316 With Ptfe Coated Bush||size||Customized|
The valve 316 With Ptfe Coated Bearing
ASTM A240 316/316l Stainless Steel Plate
In ASTM A240, type 316 and 316L is a chromium nickel austenitic steel, Element molybdenum addition can enhances corrosion resistance of stainless steel, which is the main factor that 316/316l is more corrosion resistant than 304/304l. When 316L steel of low carbon content is only a little higher than 316 steel on strength level. So sometimes grade 316l is almost the same as 316 grade. Another difference, 316l can be used for weld treatment as it contains lower carbon.
316/316L steel has outstanding corrosion resistant properties, whether it is atmospheric or oxidizing environment, even for marine atmosphere, it shows excellent corrosion resistance in welded state. Normally 316/316l steel shows no magnetic in annealed condition, cold drawn or cold rolling process may make it with little magnetic, and it can be fixed with further processing.
Applications of ASTM A240 316/316L
316/316L plate is used to manufacture products for applications that are exposed to salt water, acids such as sulfuric acid and chloride, petrochemicals and chemicals and high-heat such as engines and motors.Products include tanks, supports and frames, enclosures and housings, engine, motor and machinery components and parts.
Chemical Composition of 316/316L Steel Plate
|Chemical Composition of 316/316L steel|
Mechanical Properties of 316/316L Steel Plate
|Mechanical Property of 316/316l||316||316L|
|Yield Strength, min. (ksi)||30||25|
|Tensile Strength, min. (ksi)||75||70|
|Elongation, min. (%)||40||40|
|Hardness, max. (Rb)||95||95|
Stainless Steel Standards of 316/316L steel
|Steel Standards of 316/316L|
|ASTM A240||ASTM A240|
|ASTM A666||ASTM A666|
|ASME SA240||ASME SA240|
|AMS 5524||AMS 5507|
The valve is used to open and close the pipeline, control the flow direction, adjust and control the parameters of the conveying medium (temperature, pressure, and flow) pipeline accessories. According to its function, it can be divided into shutoff valve, check valve, regulating valve, etc. The valve is the control part in the fluid conveying system, which has the functions of cut-off, regulation, flow diversion, countercurrent prevention, pressure stabilization, diversion or overflow relief. Valves for fluid control systems range from the simplest globe valves to those used in the most complex automatic control systems. Valves can be used to control the flow of air, water, steam, corrosive media, mud, oil, liquid metal and radioactive media, and other types of fluid. Valves according to the material is also divided into cast iron valves, cast steel valves, stainless steel valves (201, 304, 316, etc.), chromium-molybdenum steel valves, chromium-molybdenum vanadium steel valves, double-phase steel valves, plastic valves, non-standard customized valves.
The metal polymer bearing suitable for dry running with a low coefficient of friction, low wear rate, good sliding characteristics, These self-lubricating bearings . They can be used with rotational, oscillatory and axial sliding motion.
Advantages of metal polymer bearing:
The metal polymer bearing have high load capacity and are able to operate at -328to536 degrees F, and resist shock loading and can handle both radial and axial loads.
The metal polymer bearings are widely used in Automotive, such as tractors, combines, crop sprayers, earth-movers, graders and other construction, auto machines, specific uses in power steering cylinders, steering gear thrust washers. .
Q: Are bearings used in oil and gas production?
A: We understand the key issues in the oil and gas industries, and offer bearing solutions that provide the performance and durability they demand. Our self-lubricating bearing materials resist wear, chemicals, cavitation, flow erosion and fatigue, making them ideal for a wide range of applications in oil and gas operations.
Q: Which type of bearings can be used in radial or axial piston pumps?
A: Radial and axial piston pumps are used primarily in construction, agriculture, automotive, material handling and industrial equipment. Both use shaft journal bearings to support their loads and speeds.
Q: What is your terms of packing?
A: Generally, we pack our goods in neutral cartons. If you have legally registered patent, we can pack the goods in your branded boxes after getting your authorization letters.