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| Summary of 4/6/26 6:33 GMT: | >> Show Compact View |
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Many people struggle when selecting skeleton oil seals: what’s important in lip design? What’s the difference between spring-loaded and non-spring seals? Based on practical experience, here’s an overview: Lip Design Considerations The lip of an oil seal is like the “gap at the door”—whether it can block oil and dust depends entirely on it. · Single lip: Simple and straightforward, suitable for low-pressure environments, providing basic sealing. · Double lip: In addition to the main sealing lip, there is an auxiliary dust lip, often used in more demanding conditions such as engines and hydraulic systems. · Material selection is also critical: NBR is oil-resistant. FKM is heat-resistant. PTFE is corrosion-resistant, has low friction, and is suitable for high- speed applications. Choosing the right material for the operating environment makes a significant difference in performance. Spring-Loaded vs. Non-Spring Oil Seals · Spring-loaded oil seals: The spring continuously applies pressure to the lip. Even if the shaft wears slightly or temperature fluctuates, the seal remains effective. Commonly used in high-speed, high-vibration, and variable-temperature equipment such as engine crankshafts. · Non-spring oil seals: Rely on the elasticity of the rubber itself for sealing. They have a simpler structure, lower friction, and reduced cost. Suitable for low-speed, dust-prevention, or less demanding leakage requirements, such as fan end covers or agricultural machinery. How to Choose Skeleton Oil Seals? In short: · For complex operating conditions with significant temperature and pressure fluctuations, spring-loaded oil seals are the safer choice. · For general dust prevention, low-speed, and light-load applications, non- spring oil seals are sufficient and cost-effective. Recommendation When selecting oil seals, don’t just look at the price. First, clarify the operating conditions: speed, temperature, pressure, and medium. Then match the material and structure accordingly. This way, you can avoid the embarrassment of “buying cheap but ending up with oil leaks and rework.”
Minimum Order: 1000
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Shanghai China
Shanghai
China
Calcium Hypochlorite CAS Number: 7778-54-3 UN NO.: 1748 EINECS NO.: 231-908-7 Molecular Formula: Ca(ClO)2 Purity (%): 65%-70% Appearance: White or light gray granules, powder or tablets Packing: Bags, drums, or bulk containers Other Name: Hth, Cch, Calcium hypochloride, Hypochlorite calcium, Calciumhypochloritetech
Minimum Order: 20 square metres
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0086-371-67986516
No.100 kexue road
Zheng Zhou 450000
China
Dodecyl Dimethyl Benzyl Ammonium Chloride (DDBAC) CAS No.: 8001-54-5,63449-41-2,139-07-1 UN NO.: 3265 EINECS No.: 264-151-6 Molecular Formula: C21H38ClN Purity (%): 50-80 Appearance: Colorless or yellowish transparent liquid Packing: 200L plastic drum,IBC(1000L),customers' requirement. Other Name: Benzalkonium Chloride; BKC; DDBAC; Lauryl dimethyl benzyl ammonium chloride
Minimum Order: 20 square metres
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0086-371-67986516
No.100 kexue road
Zheng Zhou 450000
China
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Hangzhou Street
Dongguan 311611
China
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Tongke is a professional Activated Carbon, Powdered Activated Carbon, Granular Activated Carbon China manufacturers and suppliers with reasonable price. We welcome you to wholesale custom bulk products from our factory. Contact us now. https://www.tongkeac.com/
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Hangzhou Street
Dongguan 311611
China
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Looking for china's top 10 Color Masterbatch, Filler Masterbatch, Additives Masterbatch manufacturers & factories in the year. Accept order in small quantities, please click here - DGYX. https://www.dgyx-plastic.com/
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Hangzhou Street
Dongguan 311611
China
Material Overview High density polyethylene is a versatile and durable material renowned for its wide range of applications across various industries. It has excellent low temperature resistance (minimum use temperature up to -70~-100℃). Good chemical stability, resistance to acid, alkali, most organic solution and water erosion. Excellent electrical insulation performance, low density, good toughness (also suitable for the low temperature conditions), good tensile property, non-toxic and harmless. High-Strength HDPE Rods Application 1. Industrial & Mechanical Engineering Machinery Components: Used for gears, bearings, and wear strips in chemical and mechanical industries due to HDPE’s low friction and high abrasion resistance. Chemical Equipment Linings: Resistant to acids, alkalis, and solvents, ideal for lining tanks, reactors, and piping systems. 2. Food & Packaging Food Processing Equipment: Compliant with hygiene standards, applied in conveyor rollers, cutting boards, and food-grade containers. Packaging Solutions: Lightweight and durable HDPE rods for manufacturing pallets, crates, and reusable packaging. 3. Textile Manufacturing Textile Machinery Parts: Replaces metal components in looms, rollers, and guides to reduce noise and wear. 4. Water Management & Infrastructure Water Treatment Systems: Used in valves, pump components, and pipeline fittings for corrosion resistance in water treatment plants. 5. Transportation & Agriculture Vehicle Components: Fabricated into bumpers, fuel tank liners, and trailer beds for impact resistance. Agricultural Tools: Utilized in irrigation systems, machinery parts, and livestock equipment for longevity in harsh environments. 6. Electrical & Low-Temperature Applications Electrical Insulation: Non-conductive rods for cable conduits, junction boxes, and insulating supports. Cold Storage & Arctic Equipment: Maintains flexibility and toughness in sub- zero environments, suitable for refrigeration units and polar infrastructure.
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15151663550
Room 1409, Building 7, Xiangyu Cross-Strait Trade Center, No. 1588, Chuangye Road, Kunshan Developme
Kunshan 215301
China
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Ultra-high molecular weight polyethylene is a kind of material with a molecular weight of more than 3 million. It almost concentrates the advantages of various plastics: high wear resistance, high impact resistance, self-lubrication, small coefficient of friction, acid and alkali resistance, no water absorption, food grade, low temperature resistance, non-stick, low density and so on. UHMWPE parts Application：Filler strip, Guard bar, Chain guide, Various guide rail, Plastic chain plate, Plastic conveyor modular belt, Wear strip, Wear block, Gear and other conveying equipment accessories. More about Flytoo
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15151663550
Room 1409, Building 7, Xiangyu Cross-Strait Trade Center, No. 1588, Chuangye Road, Kunshan Developme
Kunshan 215301
China
HDPE (High-Density Polyethylene) sheets are semi-rigid plastic sheets manufactured from HDPE resin through extrusion or calendering processes. With a highly ordered molecular structure, high crystallinity (≥90%), and a density range of 0.94–0.97 g/cm³, they combine exceptional chemical corrosion resistance, impact resistance, low water absorption, and environmental ad Waterproof & Moisture-Proof HDPE Sheets Application Chemical Corrosion Protection: Acid/alkali tank linings, electroplating tanks, filler plates for exhaust gas treatment towers. Environmental Engineering: Sewage tank covers, landfill anti-seepage membrane support layers. Food Industry: Cutting boards, food-grade conveyor belt supports, dairy equipment linings. Agricultural Facilities: Greenhouse moisture-proof partitions, aquaculture tank barriers, irrigation channels. Logistics & Transportation: Storage pallets, shelf dividers, moisture-resistant packaging crates. Marine Engineering: Floating fenders, desalination equipment components, anti- slip deck mats for vessels.
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15151663550
Room 1409, Building 7, Xiangyu Cross-Strait Trade Center, No. 1588, Chuangye Road, Kunshan Developme
Kunshan 215301
China
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UHMWPE (Ultra-High Molecular Weight Polyethylene) rods are high-performance engineering plastic products made from UHMWPE with a molecular weight ≥3 million. This material inherits UHMWPE’s exceptional wear resistance, ultra- low friction coefficient, chemical corrosion resistance, and impact resistance, while offering excellent machinability. Marine-Grade UHMWPE Rods Key Features： 1Superior Wear Resistance 5–8 times more wear-resistant than nylon and over 10 times more wear-resistant than steel (ASTM D1044), ensuring long service life in high-friction applications. 2 Self-Lubricating & Low Friction Dry friction coefficient 0.1–0.3 (ASTM D1894), eliminating the need for external lubrication and reducing energy consumption and maintenance costs. 3Impact Resistance & Low-Temperature Toughness Notched impact strength ≥80 kJ/m² (ASTM D6110), low-temperature embrittlement point ≤-150°C (ASTM D746), suitable for extreme cold environments. 4Corrosion Resistance & Hygiene Safety Resistant to acids, alkalis, oils, and organic solvents (ASTM D543). Complies with FDA food-grade certification, non-toxic and odorless, ideal for food and medical industries. 5Lightweight & Easy Machining Density 0.93–0.94 g/cm³ (75% lighter than metals), easily machined into precision components like gears, bearings, and bushings. https://www.flytoooo.com/
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15151663550
Room 1409, Building 7, Xiangyu Cross-Strait Trade Center, No. 1588, Chuangye Road, Kunshan Developme
Kunshan 215301
China
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Material Overview: Ultra-High Molecular Weight Polyethylene (UHMW-PE) is a high-performance material with a molecular weight exceeding 3 million, combining the lightweight properties of plastics with the wear resistance and impact strength of metals. Its ultra-long, highly entangled molecular chains grant exceptional wear resistance, self-lubricating properties, and chemical stability, making it ideal for demanding applications in industries such as manufacturing, healthcare, and logistics where abrasion resistance, low friction, and corrosion resistance are critical. Low-Friction UHMWPE Sheets Key Features： Superior Wear Resistance: Outperforms metals in high-wear environments. Exceptional Impact Resistance: Maintains toughness even under extreme stress. Self-Lubricating: Reduces friction without external lubricants. Ultra-Low Friction Coefficient: 0.05–0.11 (dry condition), minimizing energy loss. Acid/Alkali Resistance: Withstands strong acids, alkalis, and corrosive media. Food-Grade Safety: Complies with FDA/EU standards for food and medical applications. UHMWPE Sheets Cryogenic to High-Temperature Performance: Operates from -265°C to+80°C without brittleness. Non-Absorbent: Water absorption < 0.01%, ideal for humid environments. Anti-Adhesion: Prevents material buildup on surfaces. Lightweight: Density: 0.96 g/cm³, 75% lighter than metals.
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15151663550
Room 1409, Building 7, Xiangyu Cross-Strait Trade Center, No. 1588, Chuangye Road, Kunshan Developme
Kunshan 215301
China
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MF-10 Filler breather filters This filter is made of cylindrical stainless steel mesh, which has high ventilation, does not affect the flow rate of the fan, and is easy to clean and maintenance-free. The filter is used at the inlet of the fan. When the fan is only used for blowing, please install this device. The purpose of the filter: Filters are used at the entrance of fans and related equipment to prevent dust and materials from entering. Please install this device when the fan and related equipment are only used for blowing. This filter is made of round stainless steel mesh, which has high air permeability, does not affect the flow of the fan, and is easy to assemble and disassemble, easy to clean and maintenance-free. 1. Installed in the pump oil suction side, prevent pumping oil into the dirt, protection system. 2. Prolong pump and system service life, reduce work continuously generated when the fault. 3. Specification complete, the flow range 12 l/min~1000 l/min, filtration precision 100, 200, 150 mesh (standard products) can provide higher filtration precision. 4. The highest working temperature 90 ºC. 5. Suitable for all kinds of mineral oil, gas and liquid. 6. MF suction filter is often type, price good, recommended. Model NO. MF-10 Efficiency 100 Mesh Filtration Grade Filler Breather Filters Type Filler Breather Filters Filtration Accuracy 100 Mesh Weight 0.21kg Diameter PT 1-1/4" Rate of Flow(L/Min)) 210 Transport Package Cartons Specification MF-10 Tr , ademark Greentech Origin China HS Code 8414 Production Capacity 8000sets/Months
Minimum Order: 5 dozens
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83117088
China
Jinan Shandong China Postal Code
China
Sodium nitrite is a chemical compound used in diverse industrial applications for its oxidizing, preserving, and antimicrobial properties. CAS Number: 7632-00-0 UN NO.: 1487 EINECS NO.: 231-555-9 Molecular Formula: NaNO2 Purity (%): Typically available in various purity levels, such as 99% and above. Appearance: White to slightly yellowish crystalline powder Packing: 25kgs/bag odium Nitrite Uses Food Preservation: Sodium nitrite is commonly used to preserve meats, inhibiting bacteria like Clostridium botulinum and enhancing flavor and stability. Industrial Use: It prevents metal corrosion, added to coolants and used in dye production, metal treatment, and chemical synthesis. Water Treatment: It controls water system bacteria, prevents biofilms, and reduces contamination risks. Pharmaceuticals: Used in drug synthesis. Laboratory: Acts as a reagent, aiding chemical reactions. Explosives: Enhances explosive properties in formulations.
Minimum Order: 20 square metres
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0086-371-67986516
No.100 kexue road
Zheng Zhou 450000
China
Zinc Chloride Zinc Chloride, a white crystalline compound, is utilized for its diverse applications ranging from industrial processes to medicinal uses. CAS Number: 7646-85-7 UN NO.: 2331 EINECS NO.: 231-592-0 Molecular Formula: ZnCl2 Purity (%): Typically available in different purity levels, such as 95% and above. Appearance: Zinc Chloride is a white crystalline solid or powder. Packing: bags, drums, or containers Zinc Chloride Uses Corrosion inhibition: It helps prevent rust and corrosion of metal surfaces. Battery electrolyte: It serves as an electrolyte in certain types of batteries. Catalyst: It promotes chemical reactions and enhances their efficiency. Wood preservative: It protects wood from decay and insect damage. Dehydrating agent: It removes moisture from substances. Flux: It aids in soldering and welding processes. Textile and leather industry: It is used in dyeing, printing, and tanning processes. Chemical synthesis: It is employed in various chemical reactions and organic syntheses.
Minimum Order: 20 square metres
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0086-371-67986516
No.100 kexue road
Zheng Zhou 450000
China
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Product Introduction NMN (β‑Nicotinamide Mononucleotide) is a naturally occurring bioactive nucleotide and a direct precursor to NAD+ (Nicotinamide Adenine Dinucleotide), a coenzyme essential for cellular energy metabolism and DNA repair. With exceptional purity and consistent quality, SINOFN Health’s NMN raw material is designed for dietary supplements, functional foods, and anti‑aging formulations. At the start of the product page, you can display: 1. Material Photo – showcasing the crystalline powder texture 2. Package Photo – sealed, tamper‑proof packaging for quality assurance 3. Chemical Information: Molecular Formula (MF): C11H15N2O8P Test Method: HPLC (High‑Performance Liquid Chromatography) Purity: ≥ 99% Benefits Supports Cellular Energy – Elevates NAD+ levels to promote mitochondrial efficiency Promotes DNA Repair – Assists in healthy aging and cellular longevity Enhances Cognitive Function – Supports brain health and focus Improves Physical Vitality – Helps maintain muscle strength and endurance Features High Purity: ≥ 99% verified by HPLC Consistent Quality: Strict GMP-compliant production Stable Formulation: Excellent solubility and storage stability Flexible Applications: Suitable for capsules, tablets, powders, and functional beverages Global Compliance: Meets international safety and quality standards Applications Dietary Supplements – Anti-aging and vitality products Functional Foods & Drinks – Energy‑boosting or longevity formulas Cosmeceuticals – Anti-aging skincare and topical applications Pharmaceutical Research – Studies related to aging and metabolic health
Minimum Order: 1 bags
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+86-13621894407
No. 60 Weiliu Road, Airport Zone
Tianjin 300308
China
SOURCE: Import-Export Bulletin Board (https://www.imexbb.com/)
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