Manufacturer direct sales stainless steel thrust ball bearing 51206 plane thrust ball bearing custom

With two independent brands (Ranur and Ranuy) , all we do is to always be ready to face more stringent operating conditions and growing market demand, and timely grasp and application of how to improve industrial reliability and optimize the asset life cycle. Ranur is the guarantee of high quality of stainless steel bearing in China. Since 2000, Ranur has been the technical service provider and manufacturer of stainless steel bearing. Ranur series stainless steel bearings have high precision tolerance, unique design of the internal geometry, high-quality bearing materials. Ranur series stainless steel bearings have: high temperature resistance, cold resistance, wear resistance, corrosion resistance, magneto-electric insulation, oil-free self-lubrication, high speed and other characteristics. Can Be used for extremely harsh environment and special working conditions, Ranur series stainless steel bearing classification: 1, BY BEARING MATERIAL CLASSIFICATION: 440C stainless steel bearing, 420 stainless steel bearing, 304 stainless steel bearing, 316 stainless steel bearing, 316L stainless steel bearing, 2, by bearing category: Deep Groove Ball bearing, outer ball bearing, with the seat outer ball bearing, plane thrust ball bearing, self-aligning ball bearing, angular contact ball, double row angular contact ball bearing... According to bearing precision points: P 0, P 6, p 5, p 4, according to bearing size points: miniature bearings, small and medium bearings, medium and large bearings, large bearings (nominal diameter range of 3-430 mm bearings)5 according to processing technology points: German design, let the cloud production, with high cost-effective full stainless steel bearings, German design, German production, can be customized according to customer special requirements of full stainless steel bearings, Ranur series stainless steel bearings identification method: How to identify stainless steel or stainless iron What's the difference between 420,440,304,304L, 316,316L What is "steel" and "iron" , what are their characteristics, what do they have to do with each other, how do they come from what we usually call "420" , "440" , "304" , "304L" , "316" , "316L" , and what is the Difference Between Them ? Steel: a material consisting mainly of iron, usually less than 2% carbon, and containing other elements . Refer to Gb/t 13304-91 steel classification, iron: A METALLIC ELEMENT, atomic serial number 26 . The iron material has very strong ferromagnetism, and has the good plasticity and the heat conduction . STAINLESS STEEL: resistant to air, steam, water and other weak corrosion media or with stainless steel . 304,304L, 316,316L are the AUSTENITIC STAINLESS STEEL 300 series 304 stainless steel-performance Introduction: 304 stainless steel is the most common steel, as a widely used steel, with good corrosion resistance, heat resistance, low-temperature strength and mechanical properties; stamping, bending and other hot workability, no heat treatment hardening phenomenon (no magnetic, then used temperature-196 °C ~ 800 °C) Main uses: household products: (1,2 types of tableware, cabinets, indoor plumbing, water heater, boiler, bathtub) , auto parts: (windshield wipers, mufflers, molded products) , medical appliances, building materials, chemicals, food industry, agriculture, ship parts and so on 304L stainless steel performance introduction: As a low carbon 304 steel, its corrosion resistance is similar to that of 304 in normal state, but after welding or removing stress, its anti-grain boundary corrosion ability is excellent, in the absence of heat treatment, also can maintain good corrosion resistance, use temperature-196 °C ~ 800 °C . Application: used in chemical, coal, petroleum industry, building materials, heat-resistant parts and heat-treated parts with high anti-grain Boundary Corrosion 316 stainless steel performance introduction: 316 stainless steel due to the addition of Molybdenum, its corrosion resistance, atmospheric corrosion resistance and high-temperature strength is particularly good, can be used under harsh conditions, excellent work hardening (non-magnetic) Application: Sea Water Equipment, chemical, dye, paper, oxalic acid, fertilizer and other production equipment; photography, food industry, coastal facilities, rope, CD ROD, bolts, nuts . 316L stainless steel performance introduction: AS 316 steel grade low carbon series, in addition to 316 steel has the same characteristics, its anti-grain boundary corrosion . SCOPE OF APPLICATION: Products with special requirements for resistance to Grain Boundary Corrosion . Chemical Composition: 316 and 316L stainless steels are molybdenum-containing stainless steels . The Molybdenum content of 316L stainless steel is slightly higher than that of 316 stainless steel . Because of the Molybdenum in the steel, the total properties of the steel are better than those of 316 and 304 stainless steel. 316 stainless steel has a wide range of uses at high temperature when the concentration of sulfuric acid is less than 15% and more than 85% . 316 stainless steel also has good chloride corrosion properties, so it is commonly used in the Marine Environment . The 316L stainless steel has a maximum carbon content of 0.03 and can be used in applications where no annealing is performed after welding and maximum corrosion resistance is required . Corrosion Resistance: 316 stainless steel corrosion resistance than 304 stainless steel, in pulp and paper production process with good corrosion resistance . And 316 stainless steel also resistant to marine and corrosive industrial atmosphere . Generally speaking, 304 stainless steel and 316 stainless steel have little difference in chemical corrosion resistance, but they differ in some specific media The original developed stainless steel was 304, which is sensitive to Pitting Corrosion under certain conditions . An additional 2-3% molybdenum can reduce this sensitivity, resulting in 316 In addition, these additional molybdenum can also reduce the corrosion of certain thermal organic acids . 316 stainless steel has become the standard material in food and beverage industry 316 stainless steel is more expensive than 304 stainless steel due to the worldwide shortage of molybdenum and the higher nickel content of 316 stainless steel . Pitting is a phenomenon mainly caused by deposition of corrosion on the surface of stainless steel, which can not form a protective layer of chromium oxide due to lack of oxygen . In small valves in particular, the possibility of valve plate deposition is very small, so pitting corrosion rarely occurs . In all types of water media (distilled water, drinking water, river water, boiler water, sea water, etc.) , 304 stainless steel and 316 stainless steel corrosion resistance almost the same, unless the medium is very high chloride ion content, then 316 stainless steel is more suitable . In most cases, 304 stainless steel and 316 stainless steel corrosion resistance is not much different, but in some cases may be very different, need specific analysis of specific circumstances In general, valve users should be aware of the situation, because they will be based on the medium of choice of containers and pipe materials, do not recommend materials to the user Heat Resistance: 316 stainless steel has good oxidation resistance under intermittent use below 1600 °C and continuous use below 1700 °C . In the 800-1575 °C range, 316 stainless steel is not recommended for continuous use, but it has good heat resistance when used continuously outside this temperature range . 316L stainless steel has better carbides precipitation resistance than 316 stainless steel and can be used in the above temperature range . Heat treatment: In the temperature range of 1850-2050 degrees annealing, and then rapid annealing, and then rapid cooling . 316 stainless steel can not be hardened by over-heat Treatment . WELDING ASPECT: 316 stainless steel has the good welding performance . All standard welding methods can be used for welding . 316CB, 316L or 309Cb stainless steel filler rods or electrodes can be used for welding according to the usage . In order to obtain the best corrosion resistance, the welding section of 316 stainless steel needs to be annealed after welding . If 316L stainless steel is used, no post weld annealing treatment is required . Of all steels, the AUSTENITIC stainless steel has the lowest yield point Therefore, for mechanical purposes, Austenitic stainless steel is not the best material to use in the stem, as the stem diameter is increased to ensure strength . The yield point can not be raised by heat treatment, but can be raised by cold forming Magnetic: due to the wide use of Austenitic stainless steel, it is assumed that all stainless steels are not magnetic . For Austenitic stainless steel, it is essentially non-magnetic, which is true of tempered steel . But the cold-formed 304 will be somewhat magnetic . For cast steel, if

With two independent brands (Ranur and Ranuy) , all we do is to always be ready to face more stringent operating conditions and growing market demand, and timely grasp and application of how to improve industrial reliability and optimize the asset life cycle. Ranur is the guarantee of high quality of stainless steel bearing in China. Since 2000, Ranur has been the technical service provider and manufacturer of stainless steel bearing. Ranur series stainless steel bearings have high precision tolerance, unique design of the internal geometry, high-quality bearing materials. Ranur series stainless steel bearings have: high temperature resistance, cold resistance, wear resistance, corrosion resistance, magneto-electric insulation, oil-free self-lubrication, high speed and other characteristics. Can Be used for extremely harsh environment and special working conditions, Ranur series stainless steel bearing classification: 1, BY BEARING MATERIAL CLASSIFICATION: 440C stainless steel bearing, 420 stainless steel bearing, 304 stainless steel bearing, 316 stainless steel bearing, 316L stainless steel bearing, 2, by bearing category: Deep Groove Ball bearing, outer ball bearing, with the seat outer ball bearing, plane thrust ball bearing, self-aligning ball bearing, angular contact ball, double row angular contact ball bearing... According to bearing precision points: P 0, P 6, p 5, p 4, according to bearing size points: miniature bearings, small and medium bearings, medium and large bearings, large bearings (nominal diameter range of 3-430 mm bearings)5 according to processing technology points: German design, let the cloud production, with high cost-effective full stainless steel bearings, German design, German production, can be customized according to customer special requirements of full stainless steel bearings, Ranur series stainless steel bearings identification method: How to identify stainless steel or stainless iron What's the difference between 420,440,304,304L, 316,316L What is "steel" and "iron" , what are their characteristics, what do they have to do with each other, how do they come from what we usually call "420" , "440" , "304" , "304L" , "316" , "316L" , and what is the Difference Between Them ? Steel: a material consisting mainly of iron, usually less than 2% carbon, and containing other elements . Refer to Gb/t 13304-91 steel classification, iron: A METALLIC ELEMENT, atomic serial number 26 . The iron material has very strong ferromagnetism, and has the good plasticity and the heat conduction . STAINLESS STEEL: resistant to air, steam, water and other weak corrosion media or with stainless steel . 304,304L, 316,316L are the AUSTENITIC STAINLESS STEEL 300 series 304 stainless steel-performance Introduction: 304 stainless steel is the most common steel, as a widely used steel, with good corrosion resistance, heat resistance, low-temperature strength and mechanical properties; stamping, bending and other hot workability, no heat treatment hardening phenomenon (no magnetic, then used temperature-196 °C ~ 800 °C) Main uses: household products: (1,2 types of tableware, cabinets, indoor plumbing, water heater, boiler, bathtub) , auto parts: (windshield wipers, mufflers, molded products) , medical appliances, building materials, chemicals, food industry, agriculture, ship parts and so on 304L stainless steel performance introduction: As a low carbon 304 steel, its corrosion resistance is similar to that of 304 in normal state, but after welding or removing stress, its anti-grain boundary corrosion ability is excellent, in the absence of heat treatment, also can maintain good corrosion resistance, use temperature-196 °C ~ 800 °C . Application: used in chemical, coal, petroleum industry, building materials, heat-resistant parts and heat-treated parts with high anti-grain Boundary Corrosion 316 stainless steel performance introduction: 316 stainless steel due to the addition of Molybdenum, its corrosion resistance, atmospheric corrosion resistance and high-temperature strength is particularly good, can be used under harsh conditions, excellent work hardening (non-magnetic) Application: Sea Water Equipment, chemical, dye, paper, oxalic acid, fertilizer and other production equipment; photography, food industry, coastal facilities, rope, CD ROD, bolts, nuts . 316L stainless steel performance introduction: AS 316 steel grade low carbon series, in addition to 316 steel has the same characteristics, its anti-grain boundary corrosion . SCOPE OF APPLICATION: Products with special requirements for resistance to Grain Boundary Corrosion . Chemical Composition: 316 and 316L stainless steels are molybdenum-containing stainless steels . The Molybdenum content of 316L stainless steel is slightly higher than that of 316 stainless steel . Because of the Molybdenum in the steel, the total properties of the steel are better than those of 316 and 304 stainless steel. 316 stainless steel has a wide range of uses at high temperature when the concentration of sulfuric acid is less than 15% and more than 85% . 316 stainless steel also has good chloride corrosion properties, so it is commonly used in the Marine Environment . The 316L stainless steel has a maximum carbon content of 0.03 and can be used in applications where no annealing is performed after welding and maximum corrosion resistance is required . Corrosion Resistance: 316 stainless steel corrosion resistance than 304 stainless steel, in pulp and paper production process with good corrosion resistance . And 316 stainless steel also resistant to marine and corrosive industrial atmosphere . Generally speaking, 304 stainless steel and 316 stainless steel have little difference in chemical corrosion resistance, but they differ in some specific media The original developed stainless steel was 304, which is sensitive to Pitting Corrosion under certain conditions . An additional 2-3% molybdenum can reduce this sensitivity, resulting in 316 In addition, these additional molybdenum can also reduce the corrosion of certain thermal organic acids . 316 stainless steel has become the standard material in food and beverage industry 316 stainless steel is more expensive than 304 stainless steel due to the worldwide shortage of molybdenum and the higher nickel content of 316 stainless steel . Pitting is a phenomenon mainly caused by deposition of corrosion on the surface of stainless steel, which can not form a protective layer of chromium oxide due to lack of oxygen . In small valves in particular, the possibility of valve plate deposition is very small, so pitting corrosion rarely occurs . In all types of water media (distilled water, drinking water, river water, boiler water, sea water, etc.) , 304 stainless steel and 316 stainless steel corrosion resistance almost the same, unless the medium is very high chloride ion content, then 316 stainless steel is more suitable . In most cases, 304 stainless steel and 316 stainless steel corrosion resistance is not much different, but in some cases may be very different, need specific analysis of specific circumstances In general, valve users should be aware of the situation, because they will be based on the medium of choice of containers and pipe materials, do not recommend materials to the user Heat Resistance: 316 stainless steel has good oxidation resistance under intermittent use below 1600 °C and continuous use below 1700 °C . In the 800-1575 °C range, 316 stainless steel is not recommended for continuous use, but it has good heat resistance when used continuously outside this temperature range . 316L stainless steel has better carbides precipitation resistance than 316 stainless steel and can be used in the above temperature range . Heat treatment: In the temperature range of 1850-2050 degrees annealing, and then rapid annealing, and then rapid cooling . 316 stainless steel can not be hardened by over-heat Treatment . WELDING ASPECT: 316 stainless steel has the good welding performance . All standard welding methods can be used for welding . 316CB, 316L or 309Cb stainless steel filler rods or electrodes can be used for welding according to the usage . In order to obtain the best corrosion resistance, the welding section of 316 stainless steel needs to be annealed after welding . If 316L stainless steel is used, no post weld annealing treatment is required . Of all steels, the AUSTENITIC stainless steel has the lowest yield point Therefore, for mechanical purposes, Austenitic stainless steel is not the best material to use in the stem, as the stem diameter is increased to ensure strength . The yield point can not be raised by heat treatment, but can be raised by cold forming Magnetic: due to the wide use of Austenitic stainless steel, it is assumed that all stainless steels are not magnetic . For Austenitic stainless steel, it is essentially non-magnetic, which is true of tempered steel . But the cold-formed 304 will be somewhat magnetic . For cast steel, if

With two independent brands (Ranur and Ranuy) , all we do is to always be ready to face more stringent operating conditions and growing market demand, and timely grasp and application of how to improve industrial reliability and optimize the asset life cycle. Ranur is the guarantee of high quality of stainless steel bearing in China. Since 2000, Ranur has been the technical service provider and manufacturer of stainless steel bearing. Ranur series stainless steel bearings have high precision tolerance, unique design of the internal geometry, high-quality bearing materials. Ranur series stainless steel bearings have: high temperature resistance, cold resistance, wear resistance, corrosion resistance, magneto-electric insulation, oil-free self-lubrication, high speed and other characteristics. Can Be used for extremely harsh environment and special working conditions, Ranur series stainless steel bearing classification: 1, BY BEARING MATERIAL CLASSIFICATION: 440C stainless steel bearing, 420 stainless steel bearing, 304 stainless steel bearing, 316 stainless steel bearing, 316L stainless steel bearing, 2, by bearing category: Deep Groove Ball bearing, outer ball bearing, with the seat outer ball bearing, plane thrust ball bearing, self-aligning ball bearing, angular contact ball, double row angular contact ball bearing... According to bearing precision points: P 0, P 6, p 5, p 4, according to bearing size points: miniature bearings, small and medium bearings, medium and large bearings, large bearings (nominal diameter range of 3-430 mm bearings)5 according to processing technology points: German design, let the cloud production, with high cost-effective full stainless steel bearings, German design, German production, can be customized according to customer special requirements of full stainless steel bearings, Ranur series stainless steel bearings identification method: How to identify stainless steel or stainless iron What's the difference between 420,440,304,304L, 316,316L What is "steel" and "iron" , what are their characteristics, what do they have to do with each other, how do they come from what we usually call "420" , "440" , "304" , "304L" , "316" , "316L" , and what is the Difference Between Them ? Steel: a material consisting mainly of iron, usually less than 2% carbon, and containing other elements . Refer to Gb/t 13304-91 steel classification, iron: A METALLIC ELEMENT, atomic serial number 26 . The iron material has very strong ferromagnetism, and has the good plasticity and the heat conduction . STAINLESS STEEL: resistant to air, steam, water and other weak corrosion media or with stainless steel . 304,304L, 316,316L are the AUSTENITIC STAINLESS STEEL 300 series 304 stainless steel-performance Introduction: 304 stainless steel is the most common steel, as a widely used steel, with good corrosion resistance, heat resistance, low-temperature strength and mechanical properties; stamping, bending and other hot workability, no heat treatment hardening phenomenon (no magnetic, then used temperature-196 °C ~ 800 °C) Main uses: household products: (1,2 types of tableware, cabinets, indoor plumbing, water heater, boiler, bathtub) , auto parts: (windshield wipers, mufflers, molded products) , medical appliances, building materials, chemicals, food industry, agriculture, ship parts and so on 304L stainless steel performance introduction: As a low carbon 304 steel, its corrosion resistance is similar to that of 304 in normal state, but after welding or removing stress, its anti-grain boundary corrosion ability is excellent, in the absence of heat treatment, also can maintain good corrosion resistance, use temperature-196 °C ~ 800 °C . Application: used in chemical, coal, petroleum industry, building materials, heat-resistant parts and heat-treated parts with high anti-grain Boundary Corrosion 316 stainless steel performance introduction: 316 stainless steel due to the addition of Molybdenum, its corrosion resistance, atmospheric corrosion resistance and high-temperature strength is particularly good, can be used under harsh conditions, excellent work hardening (non-magnetic) Application: Sea Water Equipment, chemical, dye, paper, oxalic acid, fertilizer and other production equipment; photography, food industry, coastal facilities, rope, CD ROD, bolts, nuts . 316L stainless steel performance introduction: AS 316 steel grade low carbon series, in addition to 316 steel has the same characteristics, its anti-grain boundary corrosion . SCOPE OF APPLICATION: Products with special requirements for resistance to Grain Boundary Corrosion . Chemical Composition: 316 and 316L stainless steels are molybdenum-containing stainless steels . The Molybdenum content of 316L stainless steel is slightly higher than that of 316 stainless steel . Because of the Molybdenum in the steel, the total properties of the steel are better than those of 316 and 304 stainless steel. 316 stainless steel has a wide range of uses at high temperature when the concentration of sulfuric acid is less than 15% and more than 85% . 316 stainless steel also has good chloride corrosion properties, so it is commonly used in the Marine Environment . The 316L stainless steel has a maximum carbon content of 0.03 and can be used in applications where no annealing is performed after welding and maximum corrosion resistance is required . Corrosion Resistance: 316 stainless steel corrosion resistance than 304 stainless steel, in pulp and paper production process with good corrosion resistance . And 316 stainless steel also resistant to marine and corrosive industrial atmosphere . Generally speaking, 304 stainless steel and 316 stainless steel have little difference in chemical corrosion resistance, but they differ in some specific media The original developed stainless steel was 304, which is sensitive to Pitting Corrosion under certain conditions . An additional 2-3% molybdenum can reduce this sensitivity, resulting in 316 In addition, these additional molybdenum can also reduce the corrosion of certain thermal organic acids . 316 stainless steel has become the standard material in food and beverage industry 316 stainless steel is more expensive than 304 stainless steel due to the worldwide shortage of molybdenum and the higher nickel content of 316 stainless steel . Pitting is a phenomenon mainly caused by deposition of corrosion on the surface of stainless steel, which can not form a protective layer of chromium oxide due to lack of oxygen . In small valves in particular, the possibility of valve plate deposition is very small, so pitting corrosion rarely occurs . In all types of water media (distilled water, drinking water, river water, boiler water, sea water, etc.) , 304 stainless steel and 316 stainless steel corrosion resistance almost the same, unless the medium is very high chloride ion content, then 316 stainless steel is more suitable . In most cases, 304 stainless steel and 316 stainless steel corrosion resistance is not much different, but in some cases may be very different, need specific analysis of specific circumstances In general, valve users should be aware of the situation, because they will be based on the medium of choice of containers and pipe materials, do not recommend materials to the user Heat Resistance: 316 stainless steel has good oxidation resistance under intermittent use below 1600 °C and continuous use below 1700 °C . In the 800-1575 °C range, 316 stainless steel is not recommended for continuous use, but it has good heat resistance when used continuously outside this temperature range . 316L stainless steel has better carbides precipitation resistance than 316 stainless steel and can be used in the above temperature range . Heat treatment: In the temperature range of 1850-2050 degrees annealing, and then rapid annealing, and then rapid cooling . 316 stainless steel can not be hardened by over-heat Treatment . WELDING ASPECT: 316 stainless steel has the good welding performance . All standard welding methods can be used for welding . 316CB, 316L or 309Cb stainless steel filler rods or electrodes can be used for welding according to the usage . In order to obtain the best corrosion resistance, the welding section of 316 stainless steel needs to be annealed after welding . If 316L stainless steel is used, no post weld annealing treatment is required . Of all steels, the AUSTENITIC stainless steel has the lowest yield point Therefore, for mechanical purposes, Austenitic stainless steel is not the best material to use in the stem, as the stem diameter is increased to ensure strength . The yield point can not be raised by heat treatment, but can be raised by cold forming Magnetic: due to the wide use of Austenitic stainless steel, it is assumed that all stainless steels are not magnetic . For Austenitic stainless steel, it is essentially non-magnetic, which is true of tempered steel . But the cold-formed 304 will be somewhat magnetic . For cast steel, if